Annotation of doc/gutshtml/SessionTw2.html, revision 1.1

1.1     ! www         1: <html>
        !             2: <head>
        !             3: <meta name=Title content="Session Two: Statistics/Chart (Behrouz)">
        !             4: <meta http-equiv=Content-Type content="text/html; charset=macintosh">
        !             5: <link rel=Edit-Time-Data href="Session%20Tw2_files/editdata.mso">
        !             6: <link rel=OLE-Object-Data href="Session%20Tw2_files/oledata.mso">
        !             7: <title>Session Two: Statistics/Chart (Behrouz)</title>
        !             8: <style><!--
        !             9: .MsoFootnoteText
        !            10: 	{font-size:10.0pt;
        !            11: 	font-family:"Times New Roman";}
        !            12: .MsoHeader
        !            13: 	{tab-stops:center 3.0in right 6.0in;
        !            14: 	font-size:10.0pt;
        !            15: 	font-family:"Times New Roman";}
        !            16: .MsoFootnoteReference
        !            17: 	{vertical-align:super;}
        !            18: .MsoBodyText
        !            19: 	{line-height:24.0pt;
        !            20: 	font-size:12.0pt;
        !            21: 	font-family:"Times New Roman";
        !            22: 	layout-grid-mode:line;}
        !            23: .MsoBodyTextIndent
        !            24: 	{text-indent:-.5in;
        !            25: 	font-size:10.0pt;
        !            26: 	font-family:"Times New Roman";}
        !            27: .MsoBodyText2
        !            28: 	{font-size:10.0pt;
        !            29: 	font-family:"Times New Roman";
        !            30: 	color:black;}
        !            31: .MsoBodyTextIndent2
        !            32: 	{text-align:justify;
        !            33: 	line-height:150%;
        !            34: 	font-size:11.0pt;
        !            35: 	font-family:"Times New Roman";}
        !            36: .MsoHyperlink
        !            37: 	{color:blue;
        !            38: 	text-decoration:underline;
        !            39: 	text-underline:single;}
        !            40: .H5
        !            41: 	{font-size:10.0pt;
        !            42: 	font-family:"Times New Roman";
        !            43: 	layout-grid-mode:line;
        !            44: 	font-weight:bold;}
        !            45: .FirstParagraph
        !            46: 	{text-align:justify;
        !            47: 	font-size:10.0pt;
        !            48: 	font-family:"Times New Roman";}
        !            49: .Section1
        !            50: 	{page:Section1;}
        !            51: .Section2
        !            52: 	{page:Section2;}
        !            53: -->
        !            54: </style>
        !            55: </head>
        !            56: <body bgcolor=#FFFFFF link=blue vlink=purple class="Normal" lang=EN-US><div class=Section1> 
        !            57: <h2>Session Two: Statistics/Chart (Behrouz)</h2>
        !            58: <p><span style='layout-grid-mode:line'>In LON-CAPA, we are involved with two kinds 
        !            59:   of large data sets: </span></p>
        !            60: <p> <span style='layout-grid-mode:line'>1)<span
        !            61: style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span> <span
        !            62: style='layout-grid-mode:line'>Educational resources such as </span>web pages, 
        !            63:   demonstrations, simulations, and individualized problems designed for use on 
        !            64:   homework assignments, quizzes, and examinations<span style='layout-grid-mode:
        !            65: line'>; </span></p>
        !            66: <p> <span style='layout-grid-mode:line'>2)<span
        !            67: style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span> <span
        !            68: style='layout-grid-mode:line'>Information about users who create, modify, assess, 
        !            69:   or use these resources. </span></p>
        !            70: <p><span style='layout-grid-mode:line'>Usually, instructors/ course coordinators 
        !            71:   wish to assess the studentsÕ educational situation or evaluate the problems 
        !            72:   have bee presented in the course, after the students used the educational materials. 
        !            73:   There are two main modules in LON_CAPA that provide the statistical information 
        !            74:   for instructors/ course-coordinators: <i>lonchart.pm </i></span><span style='layout-grid-mode:line'>and 
        !            75:   <i>lonstatistics.pm</i></span><span
        !            76: style='layout-grid-mode:line'>. When an instructorÕs access is authorized, he/she 
        !            77:   can find useful reports about the course, regarding maps, problems included 
        !            78:   in each map, and the students who tried to solve the problems. When an instructor 
        !            79:   selects a course, he/she has two buttons in remote control to obtain the statistical 
        !            80:   information: Ò<i>chart</i></span><span style='layout-grid-mode:
        !            81: line'>Ó or Ò<i>stat</i></span><span style='layout-grid-mode:line'>Ó button.</span></p>
        !            82: <h3 style='line-height:150%'><a name="_Toc421867139"><span style='layout-grid-mode:
        !            83: line'>lonchart.pm</span></a></h3>
        !            84: <p><span style='font-size:11.0pt;layout-grid-mode:line'>Ò<i>chart</i></span><span
        !            85: style='font-size:11.0pt;layout-grid-mode:line'>Ó button in remote control calls 
        !            86:   lonchart.pm, which provides a quick review of students tries on different problems 
        !            87:   of a course for an instructor.&nbsp; The instructor may monitor the number of 
        !            88:   tries of every student in each map and its problems.<span style='color:red'> 
        !            89:   </span>The number of solved problems in a map is shown in the end of each map 
        !            90:   with a different color (green). The overall solved problems and total number 
        !            91:   of problems in the map can be seen at the end of line according to every individual 
        !            92:   student in a different color (blue). A sample of chart is shown in <b>Fig. 3.2.1</b></span></p>
        !            93: <p><span style='font-size:9.0pt;border:solid windowtext .5pt;
        !            94: padding:0in'>xxxxxxx1:msu ! 001 ! 1*11*121 <span style='color:green'>8</span> 
        !            95:   1231.31423212 <span style='color:green'>12 </span>&nbsp;2111211284.131 <span style='color:green'>13</span> 
        !            96:   É&nbsp; 231113112221 <span style='color:green'>12</span>&nbsp; <span style='color:navy'>162 
        !            97:   / 188<br>
        !            98:   </span>xxxxxxx2:msu ! 003 ! 12113162 <span style='color:green'>8</span> 1+11&nbsp; 
        !            99:   1&nbsp; 21x111<span style='color:green'>10</span> 11211322246132 <span
        !           100: style='color:green'>14</span> É ############<span style='color:green'>&nbsp; &nbsp;&nbsp;0&nbsp; 
        !           101:   </span><span
        !           102: style='color:navy'>149 / 188</span><span style='color:green'> <br>
        !           103:   <br>
        !           104:   </span></span></p>
        !           105: <div style='border:solid windowtext .5pt;padding:1.0pt 0in 1.0pt 1.0pt'> 
        !           106:   <p style='border:none;padding:0in;'>1..9: correct by student in 1..9 tries </p>
        !           107:   <p style='border:none;padding:0in;'>*: correct by student in more than 9 tries 
        !           108:   </p>
        !           109:   <p style='border:none;padding:0in;'>+: correct by override </p>
        !           110:   <p style='border:none;padding:0in;'>-: incorrect by override </p>
        !           111:   <p style='border:none;padding:0in;'>.: incorrect attempted </p>
        !           112:   <p style='border:none;padding:0in;'>#: ungraded attempted </p>
        !           113:   <p style='border:none;padding:0in;'>Ô Ô: not attempted </p>
        !           114:   <p style='border:none;padding:0in;'>x: excused</p>
        !           115: </div>
        !           116: <p><span style='font-size:14.0pt'><b>Fig. 3.2.1</b></span><span
        !           117: style='font-size:14.0pt'> Chart of map, problems, and studentsÕ tries, and a quick 
        !           118:   statistics of solved problems</span></p>
        !           119: <p><span style='layout-grid-mode:line'>1. When an instructor loads the chart in 
        !           120:   his/her machine once, its data is cached in his/her local machine. If he/she 
        !           121:   runs the chart again, the course chart is loaded very quickly from the cache.</span></p>
        !           122: <p><span style='layout-grid-mode:line'>2. An instructor can sort the chart according 
        !           123:   to user name, last name, as well as, the section which student belongs to.</span></p>
        !           124: <div style='border:solid windowtext .5pt;padding:1.0pt 4.0pt 1.0pt 4.0pt'> 
        !           125:   <p align=center style='text-align:center;
        !           126: border:none;padding:0in;'><span style='font-size:8.0pt;font-family:Arial;
        !           127: display:none'>Top of Form</span></p>
        !           128: </div>
        !           129: <div style='border:solid windowtext .5pt;padding:1.0pt 4.0pt 0in 4.0pt'> 
        !           130:   <p align=center style='
        !           131: text-align:center;
        !           132: border:none;padding:
        !           133: 0in;'><b>Sort by: &nbsp; </b><span
        !           134: style='font-weight:normal'>&nbsp;&nbsp;&nbsp; <img width=53 height=23
        !           135: src="Session%20Tw2_files/image003.png" v:shapes="_x0000_i1025"> &nbsp;&nbsp;&nbsp; 
        !           136:     <img width=51 height=23
        !           137: src="Session%20Tw2_files/image006.png" v:shapes="_x0000_i1026"> &nbsp;&nbsp;&nbsp; 
        !           138:     <img width=40 height=23
        !           139: src="Session%20Tw2_files/image009.png" v:shapes="_x0000_i1027"> <br>
        !           140:     <br>
        !           141:     </span></p>
        !           142: </div>
        !           143: <p>3. The instructor is able to select the ÒexpiredÓ students (who dropped the 
        !           144:   course earlier) or ÒactiveÓ students or ÒanyÓ (all the) students.</p>
        !           145: <div style='border:solid windowtext .5pt;padding:1.0pt 4.0pt 1.0pt 0in'> 
        !           146:   <p align=center style='
        !           147: text-align:center;
        !           148: border:none;padding:0in;
        !           149: '><br>
        !           150:     <b>Student Status: &nbsp; </b><span style='font-weight:normal'> <img width=66 height=18
        !           151: src="Session%20Tw2_files/image012.png" v:shapes="_x0000_i1028"> &nbsp;&nbsp;&nbsp; 
        !           152:     <img width=77 height=23
        !           153: src="Session%20Tw2_files/image015.png" v:shapes="_x0000_i1029"> </span></p>
        !           154: </div>
        !           155: <div style='border:none;border-top:solid windowtext .75pt;padding:1.0pt 0in 0in 0in'> 
        !           156:   <p align=center style='text-align:center;border:none;
        !           157: padding:0in;'><span
        !           158: style='font-size:8.0pt;font-family:Arial;display:none'>Bottom of Form</span></p>
        !           159: </div>
        !           160: <h3 style='line-height:200%'><a name="_Toc421867140"><span style='layout-grid-mode:
        !           161: line'>lonstatistics.pm</span></a></h3>
        !           162: <p><span style='layout-grid-mode:line'>In ÒstatÓ button of Òremote controlÓ, a 
        !           163:   menu with three options is provided for instructor: </span></p>
        !           164: <p> <span style='layout-grid-mode:line'>1)<span
        !           165: style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span> <span
        !           166: style='layout-grid-mode:line'>Problem stats</span></p>
        !           167: <p> <span style='layout-grid-mode:line'>2)<span
        !           168: style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span> <span
        !           169: style='layout-grid-mode:line'>Problem Analysis</span></p>
        !           170: <p> <span style='font-size:11.0pt;
        !           171: layout-grid-mode:line'>3)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; 
        !           172:   </span></span> <span style='layout-grid-mode:line'>Student Assessment</span></p>
        !           173: <h4 style='line-height:150%'><span style='font-size:6.0pt;font-family:Arial;
        !           174: layout-grid-mode:line;font-weight:normal'> &nbsp; </span></h4>
        !           175: <h4><span style='font-size:12.0pt;font-family:Arial;layout-grid-mode:line'> &nbsp; 
        !           176:   </span></h4>
        !           177: <h4><span style='font-size:12.0pt;font-family:Arial;layout-grid-mode:line;
        !           178: font-weight:normal'>Problem Stats</span></h4>
        !           179: <p><span style='layout-grid-mode:line'>Ò<i>Problem Stats</i></span><span
        !           180: style='layout-grid-mode:line'>Ó button provides a table<a href="#_ftn1" name="_ftnref1" title=""><span class=MsoFootnoteReference> 
        !           181:   [1] </span></a> which includes statistical information about every problem, 
        !           182:   as you see in <b>Fig. 3.2.2</b></span><span style='layout-grid-mode:line'>. 
        !           183:   The function ExtractStudentData in lonstatitics Perl Module fetches all the 
        !           184:   data from a particular student<a name="_Hlt9981185"></a> .db file into a big 
        !           185:   hash in local machine. It uses dump function, which communicates via lonc/lond 
        !           186:   to get the student data from student repository (data server) and then all versions 
        !           187:   of student submissions computed according to every problem. The results are 
        !           188:   stored in an array in the memory.&nbsp; Before computing the studentsÕ tries 
        !           189:   in a particular problem, the different parts of problem are distinguished by 
        !           190:   considering the meta-data, which is provided for every problem. </span></p>
        !           191: <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/mmp\/kap1\/calckap1\.sequence\0022 \\t \0022_blank\0022"'><span
        !           192: class=MsoHyperlink><span style='color:blue'>Homework Set 1</span></span></span> 
        !           193: </p>
        !           194: <table border=1 cellspacing=0 cellpadding=0>
        !           195:   <tr> 
        !           196:     <td width=21 class="Normal"> <p align=center style='text-align:center'><b>P#</b></p></td>
        !           197:     <td width=72 class="Normal"> <p align=center style='text-align:center'><b> 
        !           198:         <img width=94 height=23
        !           199:   src="Session%20Tw2_files/image018.png" v:shapes="_x0000_i1030"> </b></p></td>
        !           200:     <td width=37 class="Normal"> <p align=center style='text-align:center'><b> 
        !           201:         <img width=41 height=23
        !           202:   src="Session%20Tw2_files/image021.png" v:shapes="_x0000_i1031"> </b></p></td>
        !           203:     <td width=29 class="Normal"> <p align=center style='text-align:center'><b> 
        !           204:         <img width=31 height=23
        !           205:   src="Session%20Tw2_files/image024.png" v:shapes="_x0000_i1032"> </b></p></td>
        !           206:     <td width=26 class="Normal"> <p align=center style='text-align:center'><b> 
        !           207:         <img width=28 height=23
        !           208:   src="Session%20Tw2_files/image027.png" v:shapes="_x0000_i1033"> </b></p></td>
        !           209:     <td width=30 class="Normal"> <p align=center style='text-align:center'><b> 
        !           210:         <img width=32 height=23
        !           211:   src="Session%20Tw2_files/image030.png" v:shapes="_x0000_i1034"> </b></p></td>
        !           212:     <td width=31 class="Normal"> <p align=center style='text-align:center'><b> 
        !           213:         <img width=33 height=23
        !           214:   src="Session%20Tw2_files/image033.png" v:shapes="_x0000_i1035"> </b></p></td>
        !           215:     <td width=29 class="Normal"> <p align=center style='text-align:center'><b> 
        !           216:         <img width=31 height=23
        !           217:   src="Session%20Tw2_files/image036.png" v:shapes="_x0000_i1036"> </b></p></td>
        !           218:     <td width=36 class="Normal"> <p align=center style='text-align:center'><b> 
        !           219:         <img width=40 height=23
        !           220:   src="Session%20Tw2_files/image039.png" v:shapes="_x0000_i1037"> </b></p></td>
        !           221:     <td width=32 class="Normal"> <p align=center style='text-align:center'><b> 
        !           222:         <img width=35 height=23
        !           223:   src="Session%20Tw2_files/image042.png" v:shapes="_x0000_i1038"> </b></p></td>
        !           224:     <td width=26 class="Normal"> <p align=center style='text-align:center'><b> 
        !           225:         <img width=28 height=23
        !           226:   src="Session%20Tw2_files/image045.png" v:shapes="_x0000_i1039"> </b></p></td>
        !           227:     <td width=33 class="Normal"> <p align=center style='text-align:center'><b> 
        !           228:         <img width=36 height=23
        !           229:   src="Session%20Tw2_files/image048.png" v:shapes="_x0000_i1040"> </b></p></td>
        !           230:     <td width=35 class="Normal"> <p align=center style='text-align:center'><b> 
        !           231:         <img width=38 height=23
        !           232:   src="Session%20Tw2_files/image051.png" v:shapes="_x0000_i1041"> </b></p></td>
        !           233:     <td width=37 class="Normal"> <p align=center style='text-align:center'><b> 
        !           234:         <img width=41 height=23
        !           235:   src="Session%20Tw2_files/image054.png" v:shapes="_x0000_i1042"> </b></p></td>
        !           236:   </tr>
        !           237:   <tr> 
        !           238:     <td width=21 class="Normal"> <p>1</p></td>
        !           239:     <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/01_Math_1\/msu-prob11\.problem\0022 \\t \0022_blank\0022"'><span
        !           240:   class=MsoHyperlink><span style='color:blue'>Calculator Skills</span></span></span></span></p></td>
        !           241:     <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
        !           242:     <td width=29 bgcolor="white" class="Normal"> <p>267</p></td>
        !           243:     <td width=26 bgcolor="white" class="Normal"> <p>3</p></td>
        !           244:     <td width=30 bgcolor="white" class="Normal"> <p>1.04</p></td>
        !           245:     <td width=31 bgcolor="white" class="Normal"> <p>256</p></td>
        !           246:     <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
        !           247:     <td width=36 bgcolor="white" class="Normal"> <p>0.0</p></td>
        !           248:     <td width=32 bgcolor="white" class="Normal"> <p>0.04</p></td>
        !           249:     <td width=26 bgcolor="white" class="Normal"> <p>0.2</p></td>
        !           250:     <td width=33 bgcolor="white" class="Normal"> <p>5.7</p></td>
        !           251:     <td width=35 bgcolor="white" class="Normal"> <p>0.03</p></td>
        !           252:     <td width=37 bgcolor="white" class="Normal"> <p>0.00</p></td>
        !           253:   </tr>
        !           254:   <tr> 
        !           255:     <td width=21 class="Normal"> <p>2</p></td>
        !           256:     <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/01_Math_1\/msu-prob10\.problem\0022 \\t \0022_blank\0022"'><span
        !           257:   class=MsoHyperlink><span style='color:blue'>Numbers</span></span></span></span></p></td>
        !           258:     <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
        !           259:     <td width=29 bgcolor="white" class="Normal"> <p>414</p></td>
        !           260:     <td width=26 bgcolor="white" class="Normal"> <p>17</p></td>
        !           261:     <td width=30 bgcolor="white" class="Normal"> <p>1.62</p></td>
        !           262:     <td width=31 bgcolor="white" class="Normal"> <p>255</p></td>
        !           263:     <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
        !           264:     <td width=36 bgcolor="white" class="Normal"> <p>0.4</p></td>
        !           265:     <td width=32 bgcolor="white" class="Normal"> <p>0.38</p></td>
        !           266:     <td width=26 bgcolor="white" class="Normal"> <p>1.6</p></td>
        !           267:     <td width=33 bgcolor="white" class="Normal"> <p>5.7</p></td>
        !           268:     <td width=35 bgcolor="white" class="Normal"> <p>0.11</p></td>
        !           269:     <td width=37 bgcolor="white" class="Normal"> <p>0.02</p></td>
        !           270:   </tr>
        !           271:   <tr> 
        !           272:     <td width=21 class="Normal"> <p>3</p></td>
        !           273:     <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/03_Units_Scaling\/msu-prob22\.problem\0022 \\t \0022_blank\0022"'><span
        !           274:   class=MsoHyperlink><span style='color:blue'>Speed</span></span></span></span></p></td>
        !           275:     <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
        !           276:     <td width=29 bgcolor="white" class="Normal"> <p>698</p></td>
        !           277:     <td width=26 bgcolor="white" class="Normal"> <p>13</p></td>
        !           278:     <td width=30 bgcolor="white" class="Normal"> <p>2.73</p></td>
        !           279:     <td width=31 bgcolor="white" class="Normal"> <p>255</p></td>
        !           280:     <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
        !           281:     <td width=36 bgcolor="white" class="Normal"> <p>0.4</p></td>
        !           282:     <td width=32 bgcolor="white" class="Normal"> <p>0.63</p></td>
        !           283:     <td width=26 bgcolor="white" class="Normal"> <p>2.2</p></td>
        !           284:     <td width=33 bgcolor="white" class="Normal"> <p>1.9</p></td>
        !           285:     <td width=35 bgcolor="white" class="Normal"> <p>0.06</p></td>
        !           286:     <td width=37 bgcolor="white" class="Normal"> <p>0.02</p></td>
        !           287:   </tr>
        !           288:   <tr> 
        !           289:     <td width=21 class="Normal"> <p>4</p></td>
        !           290:     <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/01_Math_1\/msu-prob13\.problem\0022 \\t \0022_blank\0022"'><span
        !           291:   class=MsoHyperlink><span style='color:blue'>Perimeter</span></span></span></span></p></td>
        !           292:     <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
        !           293:     <td width=29 bgcolor="white" class="Normal"> <p>388</p></td>
        !           294:     <td width=26 bgcolor="white" class="Normal"> <p>7</p></td>
        !           295:     <td width=30 bgcolor="white" class="Normal"> <p>1.52</p></td>
        !           296:     <td width=31 bgcolor="white" class="Normal"> <p>255</p></td>
        !           297:     <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
        !           298:     <td width=36 bgcolor="white" class="Normal"> <p>0.4</p></td>
        !           299:     <td width=32 bgcolor="white" class="Normal"> <p>0.34</p></td>
        !           300:     <td width=26 bgcolor="white" class="Normal"> <p>0.9</p></td>
        !           301:     <td width=33 bgcolor="white" class="Normal"> <p>2.4</p></td>
        !           302:     <td width=35 bgcolor="white" class="Normal"> <p>-0.00</p></td>
        !           303:     <td width=37 bgcolor="white" class="Normal"> <p>0.02</p></td>
        !           304:   </tr>
        !           305:   <tr> 
        !           306:     <td width=21 class="Normal"> <p>5</p></td>
        !           307:     <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/devolibrary\/type-math\/fraction-rlt-235\.problem\0022 \\t \0022_blank\0022"'><span
        !           308:   class=MsoHyperlink><span style='color:blue'>Reduce a Fraction</span></span></span></span></p></td>
        !           309:     <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
        !           310:     <td width=29 bgcolor="white" class="Normal"> <p>315</p></td>
        !           311:     <td width=26 bgcolor="white" class="Normal"> <p>4</p></td>
        !           312:     <td width=30 bgcolor="white" class="Normal"> <p>1.23</p></td>
        !           313:     <td width=31 bgcolor="white" class="Normal"> <p>256</p></td>
        !           314:     <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
        !           315:     <td width=36 bgcolor="white" class="Normal"> <p>0.0</p></td>
        !           316:     <td width=32 bgcolor="white" class="Normal"> <p>0.19</p></td>
        !           317:     <td width=26 bgcolor="white" class="Normal"> <p>0.5</p></td>
        !           318:     <td width=33 bgcolor="white" class="Normal"> <p>2.3</p></td>
        !           319:     <td width=35 bgcolor="white" class="Normal"> <p>0.01</p></td>
        !           320:     <td width=37 bgcolor="white" class="Normal"> <p>0.00</p></td>
        !           321:   </tr>
        !           322:   <tr> 
        !           323:     <td width=21 class="Normal"> <p>6</p></td>
        !           324:     <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/devolibrary\/type-math\/fract-add-sub-div-p11\.problem\0022 \\t \0022_blank\0022"'><span
        !           325:   class=MsoHyperlink><span style='color:blue'>Calculating with Fractions</span></span></span></span></p></td>
        !           326:     <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
        !           327:     <td width=29 bgcolor="white" class="Normal"> <p>393</p></td>
        !           328:     <td width=26 bgcolor="white" class="Normal"> <p>7</p></td>
        !           329:     <td width=30 bgcolor="white" class="Normal"> <p>1.54</p></td>
        !           330:     <td width=31 bgcolor="white" class="Normal"> <p>255</p></td>
        !           331:     <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
        !           332:     <td width=36 bgcolor="white" class="Normal"> <p>0.4</p></td>
        !           333:     <td width=32 bgcolor="white" class="Normal"> <p>0.35</p></td>
        !           334:     <td width=26 bgcolor="white" class="Normal"> <p>0.9</p></td>
        !           335:     <td width=33 bgcolor="white" class="Normal"> <p>2.0</p></td>
        !           336:     <td width=35 bgcolor="white" class="Normal"> <p>0.15</p></td>
        !           337:     <td width=37 bgcolor="white" class="Normal"> <p>0.02</p></td>
        !           338:   </tr>
        !           339:   <tr> 
        !           340:     <td width=21 class="Normal"> <p>7</p></td>
        !           341:     <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/01_Math_1\/msu-prob04\.problem\0022 \\t \0022_blank\0022"'><span
        !           342:   class=MsoHyperlink><span style='color:blue'>Area of a Balloon</span></span></span></span></p></td>
        !           343:     <td width=37 bgcolor="white" class="Normal"> <p>254</p></td>
        !           344:     <td width=29 bgcolor="white" class="Normal"> <p>601</p></td>
        !           345:     <td width=26 bgcolor="white" class="Normal"> <p>12</p></td>
        !           346:     <td width=30 bgcolor="white" class="Normal"> <p>2.37</p></td>
        !           347:     <td width=31 bgcolor="white" class="Normal"> <p>247</p></td>
        !           348:     <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
        !           349:     <td width=36 bgcolor="white" class="Normal"> <p>2.8</p></td>
        !           350:     <td width=32 bgcolor="white" class="Normal"> <p>0.59</p></td>
        !           351:     <td width=26 bgcolor="white" class="Normal"> <p>1.8</p></td>
        !           352:     <td width=33 bgcolor="white" class="Normal"> <p>1.8</p></td>
        !           353:     <td width=35 bgcolor="white" class="Normal"> <p>-0.05</p></td>
        !           354:     <td width=37 bgcolor="white" class="Normal"> <p>-0.02</p></td>
        !           355:   </tr>
        !           356:   <tr> 
        !           357:     <td width=21 class="Normal"> <p>8</p></td>
        !           358:     <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/01_Math_1\/msu-prob07\.problem\0022 \\t \0022_blank\0022"'><span
        !           359:   class=MsoHyperlink><span style='color:blue'>Volume of a Balloon</span></span></span></span></p></td>
        !           360:     <td width=37 bgcolor="white" class="Normal"> <p>252</p></td>
        !           361:     <td width=29 bgcolor="white" class="Normal"> <p>565</p></td>
        !           362:     <td width=26 bgcolor="white" class="Normal"> <p>11</p></td>
        !           363:     <td width=30 bgcolor="white" class="Normal"> <p>2.24</p></td>
        !           364:     <td width=31 bgcolor="white" class="Normal"> <p>243</p></td>
        !           365:     <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
        !           366:     <td width=36 bgcolor="white" class="Normal"> <p>3.6</p></td>
        !           367:     <td width=32 bgcolor="white" class="Normal"> <p>0.57</p></td>
        !           368:     <td width=26 bgcolor="white" class="Normal"> <p>1.9</p></td>
        !           369:     <td width=33 bgcolor="white" class="Normal"> <p>2.0</p></td>
        !           370:     <td width=35 bgcolor="white" class="Normal"> <p>-0.06</p></td>
        !           371:     <td width=37 bgcolor="white" class="Normal"> <p>-0.03</p></td>
        !           372:   </tr>
        !           373:   <tr> 
        !           374:     <td width=21 class="Normal"> <p>9</p></td>
        !           375:     <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/01_Math_1\/msu-prob12\.problem\0022 \\t \0022_blank\0022"'><span
        !           376:   class=MsoHyperlink><span style='color:blue'>Numerical Value of Fraction</span></span></span></span></p></td>
        !           377:     <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
        !           378:     <td width=29 bgcolor="white" class="Normal"> <p>268</p></td>
        !           379:     <td width=26 bgcolor="white" class="Normal"> <p>4</p></td>
        !           380:     <td width=30 bgcolor="white" class="Normal"> <p>1.05</p></td>
        !           381:     <td width=31 bgcolor="white" class="Normal"> <p>256</p></td>
        !           382:     <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
        !           383:     <td width=36 bgcolor="white" class="Normal"> <p>0.0</p></td>
        !           384:     <td width=32 bgcolor="white" class="Normal"> <p>0.04</p></td>
        !           385:     <td width=26 bgcolor="white" class="Normal"> <p>0.2</p></td>
        !           386:     <td width=33 bgcolor="white" class="Normal"> <p>3.4</p></td>
        !           387:     <td width=35 bgcolor="white" class="Normal"> <p>0.01</p></td>
        !           388:     <td width=37 bgcolor="white" class="Normal"> <p>0.00</p></td>
        !           389:   </tr>
        !           390:   <tr> 
        !           391:     <td width=21 class="Normal"> <p>10</p></td>
        !           392:     <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/03_Units_Scaling\/msu-prob17\.problem\0022 \\t \0022_blank\0022"'><span
        !           393:   class=MsoHyperlink><span style='color:blue'>Units</span></span></span></span></p></td>
        !           394:     <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
        !           395:     <td width=29 bgcolor="white" class="Normal"> <p>1116</p></td>
        !           396:     <td width=26 bgcolor="white" class="Normal"> <p>20</p></td>
        !           397:     <td width=30 bgcolor="white" class="Normal"> <p>4.36</p></td>
        !           398:     <td width=31 bgcolor="white" class="Normal"> <p>246</p></td>
        !           399:     <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
        !           400:     <td width=36 bgcolor="white" class="Normal"> <p>3.9</p></td>
        !           401:     <td width=32 bgcolor="white" class="Normal"> <p>0.78</p></td>
        !           402:     <td width=26 bgcolor="white" class="Normal"> <p>4.2</p></td>
        !           403:     <td width=33 bgcolor="white" class="Normal"> <p>1.9</p></td>
        !           404:     <td width=35 bgcolor="white" class="Normal"> <p>0.18</p></td>
        !           405:     <td width=37 bgcolor="white" class="Normal"> <p>0.03</p></td>
        !           406:   </tr>
        !           407:   <tr> 
        !           408:     <td width=21 class="Normal"> <p>11</p></td>
        !           409:     <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/06_Vectors_Scalars\/msu-prob07\.problem\0022 \\t \0022_blank\0022"'><span
        !           410:   class=MsoHyperlink><span style='color:blue'>Vector versus Scalar</span></span></span></span></p></td>
        !           411:     <td width=37 bgcolor="white" class="Normal"> <p>254</p></td>
        !           412:     <td width=29 bgcolor="white" class="Normal"> <p>749</p></td>
        !           413:     <td width=26 bgcolor="white" class="Normal"> <p>11</p></td>
        !           414:     <td width=30 bgcolor="white" class="Normal"> <p>2.95</p></td>
        !           415:     <td width=31 bgcolor="white" class="Normal"> <p>251</p></td>
        !           416:     <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
        !           417:     <td width=36 bgcolor="white" class="Normal"> <p>1.2</p></td>
        !           418:     <td width=32 bgcolor="white" class="Normal"> <p>0.66</p></td>
        !           419:     <td width=26 bgcolor="white" class="Normal"> <p>2.2</p></td>
        !           420:     <td width=33 bgcolor="white" class="Normal"> <p>1.1</p></td>
        !           421:     <td width=35 bgcolor="white" class="Normal"> <p>-0.05</p></td>
        !           422:     <td width=37 bgcolor="white" class="Normal"> <p>-0.05</p></td>
        !           423:   </tr>
        !           424:   <tr> 
        !           425:     <td width=21 class="Normal"> <p>12</p></td>
        !           426:     <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/06_Vectors_Scalars\/msu-prob10\.problem\0022 \\t \0022_blank\0022"'><span
        !           427:   class=MsoHyperlink><span style='color:blue'>Adding Vectors</span></span></span></span></p></td>
        !           428:     <td width=37 bgcolor="white" class="Normal"> <p>253</p></td>
        !           429:     <td width=29 bgcolor="white" class="Normal"> <p>1026</p></td>
        !           430:     <td width=26 bgcolor="white" class="Normal"> <p>20</p></td>
        !           431:     <td width=30 bgcolor="white" class="Normal"> <p>4.06</p></td>
        !           432:     <td width=31 bgcolor="white" class="Normal"> <p>250</p></td>
        !           433:     <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
        !           434:     <td width=36 bgcolor="white" class="Normal"> <p>1.2</p></td>
        !           435:     <td width=32 bgcolor="white" class="Normal"> <p>0.76</p></td>
        !           436:     <td width=26 bgcolor="white" class="Normal"> <p>3.6</p></td>
        !           437:     <td width=33 bgcolor="white" class="Normal"> <p>1.8</p></td>
        !           438:     <td width=35 bgcolor="white" class="Normal"> <p>0.14</p></td>
        !           439:     <td width=37 bgcolor="white" class="Normal"> <p>0.00</p></td>
        !           440:   </tr>
        !           441:   <tr> 
        !           442:     <td width=21 class="Normal"> <p>13</p></td>
        !           443:     <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/02_Math_2_Trig\/msu-prob13\.problem\0022 \\t \0022_blank\0022"'><span
        !           444:   class=MsoHyperlink><span style='color:blue'>Proximity</span></span></span></span></p></td>
        !           445:     <td width=37 bgcolor="white" class="Normal"> <p>249</p></td>
        !           446:     <td width=29 bgcolor="white" class="Normal"> <p>663</p></td>
        !           447:     <td width=26 bgcolor="white" class="Normal"> <p>19</p></td>
        !           448:     <td width=30 bgcolor="white" class="Normal"> <p>2.66</p></td>
        !           449:     <td width=31 bgcolor="white" class="Normal"> <p>239</p></td>
        !           450:     <td width=29 bgcolor="white" class="Normal"> <p>1</p></td>
        !           451:     <td width=36 bgcolor="white" class="Normal"> <p>3.6</p></td>
        !           452:     <td width=32 bgcolor="white" class="Normal"> <p>0.64</p></td>
        !           453:     <td width=26 bgcolor="white" class="Normal"> <p>2.3</p></td>
        !           454:     <td width=33 bgcolor="white" class="Normal"> <p>2.8</p></td>
        !           455:     <td width=35 bgcolor="white" class="Normal"> <p>0.11</p></td>
        !           456:     <td width=37 bgcolor="white" class="Normal"> <p>-0.10</p></td>
        !           457:   </tr>
        !           458: </table>
        !           459: <p><span style='font-size:14.0pt'><b>Fig. 3.2.2</b></span><span
        !           460: style='font-size:14.0pt'>: Statistics table includes general statistics of every 
        !           461:   problem of the course</span></p>
        !           462: <p><span style='font-size:11.0pt;layout-grid-mode:line'>Every part of <i>multi-part</i></span><span style='font-size:11.0pt;layout-grid-mode:
        !           463: line'> problems is distinguished as a separate problem. The <i>multi-instance</i></span><span
        !           464: style='font-size:11.0pt;layout-grid-mode:line'> problem is also considered separately, 
        !           465:   because a particular problem or one part of it might be used in different maps. 
        !           466:   Finally, the array, which includes all computed information from all students, 
        !           467:   sorted according to the problem order, underlying in homework sets order. Therefore, 
        !           468:   in this step we can compute the following statistical information:</span></p>
        !           469: <p> <span style='font-size:11.0pt;
        !           470: layout-grid-mode:line'>1.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; 
        !           471:   </span></span> <span style='font-size:11.0pt;layout-grid-mode:line'><b>#Stdnts</b></span><span
        !           472: style='font-size:11.0pt;layout-grid-mode:line'>: &nbsp;&nbsp;&nbsp;&nbsp; Total 
        !           473:   number of students who take a look at the problem.(Let #Stdnts is equal to <i>n</i></span><span style='font-size:
        !           474: 11.0pt;layout-grid-mode:line'>)</span></p>
        !           475: <p> <span style='font-size:11.0pt;
        !           476: layout-grid-mode:line'>2.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; 
        !           477:   </span></span> <span style='font-size:11.0pt;layout-grid-mode:line'><b>Tries:</b></span><span
        !           478: style='font-size:11.0pt;layout-grid-mode:line'> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
        !           479:   Total number of tries to solve the problem (</span><span style='font-size:11.0pt'> 
        !           480:   <img width=28 height=34
        !           481: src="Session%20Tw2_files/image057.png" v:shapes="_x0000_i1043"> where <i><sub> 
        !           482:   <img width=12 height=18
        !           483: src="Session%20Tw2_files/image060.png" v:shapes="_x0000_i1044"> </sub></i></span><span style='font-size:11.0pt'>denote 
        !           484:   a student try<span style='layout-grid-mode:line'>).</span></span></p>
        !           485: <p> <span style='font-size:11.0pt;
        !           486: layout-grid-mode:line'>3.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; 
        !           487:   </span></span> <span style='font-size:11.0pt;layout-grid-mode:line'><b>Mod: 
        !           488:   </b></span><span style='font-size:11.0pt;layout-grid-mode:line'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
        !           489:   Mode, </span><span style='font-size:11.0pt'>Maximum Number of Tries for solving 
        !           490:   the problem.</span></p>
        !           491: <p> <span style='font-size:11.0pt;
        !           492: layout-grid-mode:line'>4.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; 
        !           493:   </span></span> <span style='font-size:11.0pt'><b>Mean:</b></span><span
        !           494: style='font-size:11.0pt'> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Average Number 
        !           495:   of the Tries. </span></p>
        !           496: <p><span style='font-size:11.0pt'> <img width=11 height=13
        !           497: src="Session%20Tw2_files/image063.png" v:shapes="_x0000_i1045"> = <img width=38 height=34
        !           498: src="Session%20Tw2_files/image066.png" v:shapes="_x0000_i1046"> </span></p>
        !           499: <p> 5.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; </span> 
        !           500:   <span style='font-size:11.0pt;layout-grid-mode:line'><b>#YES:</b></span><span
        !           501: style='font-size:11.0pt'> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Number of students 
        !           502:   solved the problem correctly.</span></p>
        !           503: <p> <span style='font-size:11.0pt'>6.<span
        !           504: style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; </span></span> <span
        !           505: style='font-size:11.0pt'><b>#yes:</b></span><span style='font-size:11.0pt'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
        !           506:   Number of students solved the problem by override. </span></p>
        !           507: <p><span style='font-size:11.0pt'>Sometimes, a student gets a correct answer after 
        !           508:   talking with the instructor. This type of correct answer is called Òcorrected 
        !           509:   by override.</span></p>
        !           510: <p> <span style='font-size:11.0pt'>7.<span
        !           511: style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; </span></span> <span
        !           512: style='font-size:11.0pt'><b>%Wrng:</b></span><span style='font-size:11.0pt'> &nbsp;&nbsp; 
        !           513:   Percentage of students tried to solve the problem but still incorrect. </span></p>
        !           514: <p><span style='font-size:11.0pt'> <img width=137 height=31
        !           515: src="Session%20Tw2_files/image069.png" v:shapes="_x0000_i1047"> </span></p>
        !           516: <p> <span style='font-size:11.0pt'>8.<span
        !           517: style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; </span></span> <span
        !           518: style='font-size:11.0pt'><b>S.D.:</b></span><span style='font-size:11.0pt'> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
        !           519:   <i>Standard Deviation</i></span><span style='font-size:11.0pt'> of the studentsÕ 
        !           520:   tries. </span></p>
        !           521: <p><span style='font-size:11.0pt'> <img width=98 height=40
        !           522: src="Session%20Tw2_files/image072.png" v:shapes="_x0000_i1048"> </span></p>
        !           523: <p> <span style='font-size:11.0pt'>9.<span
        !           524: style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; </span></span> <span
        !           525: style='font-size:11.0pt'><b>Skew.:</b></span><span style='font-size:11.0pt'> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
        !           526:   <i>Skewness</i></span><span
        !           527: style='font-size:11.0pt'> of the studentsÕ tries. </span></p>
        !           528: <p><span style='font-size:11.0pt'> <img width=194 height=76
        !           529: src="Session%20Tw2_files/image075.png" v:shapes="_x0000_i1049"> </span></p>
        !           530: <p> <span style='font-size:11.0pt'>10.<span
        !           531: style='font:7.0pt "Times New Roman"'>&nbsp; </span></span> <span
        !           532: style='font-size:11.0pt'><b>DoDiff:</b></span><span style='font-size:11.0pt'> 
        !           533:   &nbsp;&nbsp;&nbsp;&nbsp; <i>Degree of Difficulty</i></span><span
        !           534: style='font-size:11.0pt'> of the problem. </span></p>
        !           535: <p><span style='font-size:11.0pt'> <img width=100 height=38
        !           536: src="Session%20Tw2_files/image078.png" v:shapes="_x0000_i1050"> </span></p>
        !           537: <p><span style='font-size:11.0pt'>As you see Degree of Difficulty is always between 
        !           538:   0 and 1. This is a good factor for an instructor to determine whether a problem 
        !           539:   is difficult, and what is the degree of this difficulty. Thus, DoDiff of each 
        !           540:   problem is saved in its meta data.</span></p>
        !           541: <p> <span style='font-size:11.0pt'>11.<span
        !           542: style='font:7.0pt "Times New Roman"'>&nbsp; </span></span> <span
        !           543: style='font-size:11.0pt'><b>Dis.F.:</b></span><span style='font-size:11.0pt'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
        !           544:   <i>Discrimination Factor</i></span><a href="#_ftn2" name="_ftnref2"
        !           545: title=""><span class=MsoFootnoteReference><span style='font-size:11.0pt'> [2] 
        !           546:   </span></span></a><span
        !           547: style='font-size:11.0pt'> is an standard for evaluating how much a problem discriminates 
        !           548:   between the upper and the lower students.&nbsp; First, all of the students are 
        !           549:   sorted according to a criterion. Then, %27 of upper students and %27 lower students 
        !           550:   are selected from the sorted students applying the mentioned criterion. Finally 
        !           551:   we obtain the Discrimination Factor from the following difference:</span></p>
        !           552: <p><span style='font-size:11.0pt'><i>Applied a criterion in %27 upper students 
        !           553:   - Applied the same Criterion in %27 lower students.</i></span></p>
        !           554: <p class=MsoBodyTextIndent2 align=left style='text-align:left;line-height:normal'>Discrimination 
        !           555:   Factor is a number in interval [-1,1]. If this number is close to 1, it shows 
        !           556:   that only upper students have solved this problem. If it is close to 0 it shows 
        !           557:   that the upper students and the lowers are approximately the same in solving 
        !           558:   the problem. If this number is negative, it shows that the lower students have 
        !           559:   more successes in solving the problem, and thus this problem is very poor in 
        !           560:   discriminating the upper and lower students.</p>
        !           561: <p><span style='font-size:11.0pt'>In lonstatistics.pm we compute the Discrimination 
        !           562:   Factor from two criteria:</span></p>
        !           563: <p><span style='font-size:11.0pt'><i>1st Criterion </i></span><span style='font-size:11.0pt'>for 
        !           564:   Sorting the Students: <img width=138 height=41
        !           565: src="Session%20Tw2_files/image081.png" v:shapes="_x0000_i1051"> </span></p>
        !           566: <p><span style='font-size:11.0pt'><i>2nd Criterion</i></span><span style='font-size:11.0pt'> 
        !           567:   for Sorting the Students: <img width=87 height=41
        !           568: src="Session%20Tw2_files/image084.png" v:shapes="_x0000_i1052"> </span></p>
        !           569: <p> <span style='font-size:11.0pt;
        !           570: font-family:Symbol;layout-grid-mode:line'>á<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
        !           571:   </span></span> <span style='font-size:11.0pt;layout-grid-mode:line'><b>Change 
        !           572:   the stats table sorting </b></span></p>
        !           573: <p><span style='font-size:11.0pt;layout-grid-mode:line'>As you see in Fig. 3.2. 
        !           574:   2, all headers in the stats table are buttons that change the order of the table. 
        !           575:   Users can change increasingly or decreasingly every column of the table. First 
        !           576:   the user select the Ò<i>ascending</i></span><span
        !           577: style='font-size:11.0pt;layout-grid-mode:line'>Ó or Ò<i>descending</i></span><span
        !           578: style='font-size:11.0pt;layout-grid-mode:line'>Ó option, then he/she can change 
        !           579:   the order of the table with clicking the header of his/her interested header. 
        !           580:   If the user changes the order the table, all information is shown in one table, 
        !           581:   each row corresponds to a particular problem. If the user selects the first 
        !           582:   column, Òhomework set orderÓ, the information is shown in different tables, 
        !           583:   each table corresponds to a particular homework set.&nbsp;&nbsp; </span></p>
        !           584: <p> <span style='font-size:11.0pt;
        !           585: font-family:Symbol;layout-grid-mode:line'>á<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
        !           586:   </span></span> <span style='font-size:11.0pt;layout-grid-mode:line'><b>Graphical 
        !           587:   chart </b></span></p>
        !           588: <p><span style='font-size:11.0pt;layout-grid-mode:line'>Two important features 
        !           589:   in this page might be seen through the graphical charts. That is, a user could 
        !           590:   see the content of Ò%wrongÓ column and Òdegree of difficulty of problemsÓ in 
        !           591:   the graphical chart as is shown in Fig. 3.2. 3 and 4 for homework set 1 in course 
        !           592:   PHY183 SS02. These graphical charts are produced dynamically by calling a CGI 
        !           593:   scripts, (graph.gif) which is located in /home/httpd/cgi-bin/</span></p>
        !           594: <p> <img width=231 height=173
        !           595: src="Session%20Tw2_files/image086.jpg" v:shapes="_x0000_i1053"> <span
        !           596: style='layout-grid-mode:line'> <img width=230 height=170
        !           597: src="Session%20Tw2_files/image088.jpg" v:shapes="_x0000_i1054"> </span></p>
        !           598: <p><b>Fig. 3.2. 3</b><span
        !           599: style='font-weight:normal'>: Degree of difficulty graph &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
        !           600:   </span><b>Fig. 3.2. 4</b><span style='font-weight:normal'>: %Wrong graph</span></p>
        !           601: <h4 style='line-height:150%'><span style='font-size:12.0pt;font-family:Arial;
        !           602: layout-grid-mode:line'> &nbsp; </span></h4>
        !           603: <h3><a name="_Toc421867141"><span style='layout-grid-mode:line'>Problem Analysis</span></a></h3>
        !           604: <p><span style='font-size:11.0pt'>Conceptual option response problems, in which 
        !           605:   the students are given several concepts that are randomly assigned to each student, 
        !           606:   are more difficult than numerical simple problems.&nbsp; Instructors usually 
        !           607:   want to see the studentsÕ tries according to every particular concept separately. 
        !           608:   ÒProblem AnalysisÓ button provides all response option problems in one table 
        !           609:   as follows in the <b>Fig. 3.2.5.</b></span><span style='font-size:11.0pt'> </span></p>
        !           610: <div style='border:solid windowtext .5pt;padding:1.0pt 0in 1.0pt 4.0pt'> 
        !           611:   <p style='border:none;padding:0in;'><span style='font-size:11.0pt'>Total number 
        !           612:     of students: 263</span></p>
        !           613:   <p style='border:none;padding:0in;'><b>Select number of intervals</b><span style='font-weight:normal'> 
        !           614:     <img width=53 height=18
        !           615: src="Session%20Tw2_files/image091.png" v:shapes="_x0000_i1055"> </span></p>
        !           616:   <p style='border:none;padding:0in;'><b>Option Response Problems</b><span
        !           617: style='font-weight:normal'> </span><b>in course PHY183 SS02:</b></p>
        !           618: </div>
        !           619: <table border=1 cellspacing=0 cellpadding=0>
        !           620:   <tr> 
        !           621:     <td width=15 class="Normal"> <p align=center style='text-align:center'><b># 
        !           622:         </b></p></td>
        !           623:     <td width=83 class="Normal"> <p align=center style='text-align:center'><b>Problem 
        !           624:         Title </b></p></td>
        !           625:     <td width=298 class="Normal"> <p align=center style='text-align:center'><b>Resource 
        !           626:         </b></p></td>
        !           627:     <td width=77 class="Normal"> <p align=center style='text-align:center'><b>Address 
        !           628:         </b></p></td>
        !           629:   </tr>
        !           630:   <tr> 
        !           631:     <td width=15 class="Normal"> <p>1 </p></td>
        !           632:     <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/01_Math_1\/msu-prob10\.problem\0022 \\t \0022_blank\0022"'><span
        !           633:   class=MsoHyperlink><span style='color:blue'>Numbers</span></span></span> </p></td>
        !           634:     <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/01_Math_1/msu-prob10.problem 
        !           635:       </p></td>
        !           636:     <td width=77 class="Normal"> <p> <img width=72 height=23
        !           637:   src="Session%20Tw2_files/image094.png" v:shapes="_x0000_i1056"> </p></td>
        !           638:   </tr>
        !           639:   <tr> 
        !           640:     <td width=15 class="Normal"> <p>2 </p></td>
        !           641:     <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/03_Units_Scaling\/msu-prob22\.problem\0022 \\t \0022_blank\0022"'><span
        !           642:   class=MsoHyperlink><span style='color:blue'>Speed</span></span></span> </p></td>
        !           643:     <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/03_Units_Scaling/msu-prob22.problem 
        !           644:       </p></td>
        !           645:     <td width=77 class="Normal"> <p> <img width=72 height=23
        !           646:   src="Session%20Tw2_files/image097.png" v:shapes="_x0000_i1057"> </p></td>
        !           647:   </tr>
        !           648:   <tr> 
        !           649:     <td width=15 class="Normal"> <p>3 </p></td>
        !           650:     <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/03_Units_Scaling\/msu-prob17\.problem\0022 \\t \0022_blank\0022"'><span
        !           651:   class=MsoHyperlink><span style='color:blue'>Units</span></span></span> </p></td>
        !           652:     <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/03_Units_Scaling/msu-prob17.problem 
        !           653:       </p></td>
        !           654:     <td width=77 class="Normal"> <p> <img width=72 height=23
        !           655:   src="Session%20Tw2_files/image100.png" v:shapes="_x0000_i1058"> </p></td>
        !           656:   </tr>
        !           657:   <tr> 
        !           658:     <td width=15 class="Normal"> <p>4 </p></td>
        !           659:     <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/06_Vectors_Scalars\/msu-prob07\.problem\0022 \\t \0022_blank\0022"'><span
        !           660:   class=MsoHyperlink><span style='color:blue'>Vector versus Scalar</span></span></span> 
        !           661:       </p></td>
        !           662:     <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/06_Vectors_Scalars/msu-prob07.problem 
        !           663:       </p></td>
        !           664:     <td width=77 class="Normal"> <p> <img width=72 height=23
        !           665:   src="Session%20Tw2_files/image103.png" v:shapes="_x0000_i1059"> </p></td>
        !           666:   </tr>
        !           667:   <tr> 
        !           668:     <td width=15 class="Normal"> <p>5 </p></td>
        !           669:     <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/06_Vectors_Scalars\/msu-prob10\.problem\0022 \\t \0022_blank\0022"'><span
        !           670:   class=MsoHyperlink><span style='color:blue'>Adding Vectors</span></span></span> 
        !           671:       </p></td>
        !           672:     <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/06_Vectors_Scalars/msu-prob10.problem 
        !           673:       </p></td>
        !           674:     <td width=77 class="Normal"> <p> <img width=72 height=23
        !           675:   src="Session%20Tw2_files/image106.png" v:shapes="_x0000_i1060"> </p></td>
        !           676:   </tr>
        !           677:   <tr> 
        !           678:     <td width=15 class="Normal"> <p>6 </p></td>
        !           679:     <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/05_1D_Motion\/msu-prob16\.problem\0022 \\t \0022_blank\0022"'><span
        !           680:   class=MsoHyperlink><span style='color:blue'>Traveling Car</span></span></span> 
        !           681:       </p></td>
        !           682:     <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/05_1D_Motion/msu-prob16.problem 
        !           683:       </p></td>
        !           684:     <td width=77 class="Normal"> <p> <img width=59 height=23
        !           685:   src="Session%20Tw2_files/image109.png" v:shapes="_x0000_i1061"> </p></td>
        !           686:   </tr>
        !           687:   <tr> 
        !           688:     <td width=15 class="Normal"> <p>7 </p></td>
        !           689:     <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/kashy\/Testing\/randomlabel\/atwood3T2M\.problem\0022 \\t \0022_blank\0022"'><span
        !           690:   class=MsoHyperlink><span style='color:blue'>Atwood Machine</span></span></span> 
        !           691:       </p></td>
        !           692:     <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/kashy/Testing/randomlabel/atwood3T2M.problem 
        !           693:       </p></td>
        !           694:     <td width=77 class="Normal"> <p> <img width=63 height=23
        !           695:   src="Session%20Tw2_files/image112.png" v:shapes="_x0000_i1062"> </p></td>
        !           696:   </tr>
        !           697:   <tr> 
        !           698:     <td width=15 class="Normal"> <p>8 </p></td>
        !           699:     <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/10_Motion_W_Friction\/msu-prob32\.problem\0022 \\t \0022_blank\0022"'><span
        !           700:   class=MsoHyperlink><span style='color:blue'>Sliding mass concepts</span></span></span> 
        !           701:       </p></td>
        !           702:     <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/10_Motion_W_Friction/msu-prob32.problem 
        !           703:       </p></td>
        !           704:     <td width=77 class="Normal"> <p> <img width=59 height=23
        !           705:   src="Session%20Tw2_files/image115.png" v:shapes="_x0000_i1063"> </p></td>
        !           706:   </tr>
        !           707:   <tr> 
        !           708:     <td width=15 class="Normal"> <p>9 </p></td>
        !           709:     <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/12_Work_Power_Energy\/msu-prob27\.problem\0022 \\t \0022_blank\0022"'><span
        !           710:   class=MsoHyperlink><span style='color:blue'>Work, Power, Energy Concepts</span></span></span> 
        !           711:       </p></td>
        !           712:     <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/12_Work_Power_Energy/msu-prob27.problem 
        !           713:       </p></td>
        !           714:     <td width=77 class="Normal"> <p> <img width=68 height=23
        !           715:   src="Session%20Tw2_files/image118.png" v:shapes="_x0000_i1064"> </p></td>
        !           716:   </tr>
        !           717:   <tr> 
        !           718:     <td width=15 class="Normal"> <p>10 </p></td>
        !           719:     <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/13_EnergyConservation\/msu-prob32\.problem\0022 \\t \0022_blank\0022"'><span
        !           720:   class=MsoHyperlink><span style='color:blue'>Bead on a Wire</span></span></span> 
        !           721:       </p></td>
        !           722:     <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/13_EnergyConservation/msu-prob32.problem 
        !           723:       </p></td>
        !           724:     <td width=77 class="Normal"> <p> <img width=63 height=23
        !           725:   src="Session%20Tw2_files/image121.png" v:shapes="_x0000_i1065"> </p></td>
        !           726:   </tr>
        !           727:   <tr> 
        !           728:     <td width=15 class="Normal"> <p>11 </p></td>
        !           729:     <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/20_Rot2_E_Trq_Accel\/msu-prob23\.problem\0022 \\t \0022_blank\0022"'><span
        !           730:   class=MsoHyperlink><span style='color:blue'>Atwood Machine</span></span></span> 
        !           731:       </p></td>
        !           732:     <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/20_Rot2_E_Trq_Accel/msu-prob23.problem 
        !           733:       </p></td>
        !           734:     <td width=77 class="Normal"> <p> <img width=63 height=23
        !           735:   src="Session%20Tw2_files/image124.png" v:shapes="_x0000_i1066"> </p></td>
        !           736:   </tr>
        !           737:   <tr> 
        !           738:     <td width=15 class="Normal"> <p>12 </p></td>
        !           739:     <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/21_Rot3_AngMom_Roll\/msu-prob38\.problem\0022 \\t \0022_blank\0022"'><span
        !           740:   class=MsoHyperlink><span style='color:blue'>Flinstone Bowling</span></span></span> 
        !           741:       </p></td>
        !           742:     <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/21_Rot3_AngMom_Roll/msu-prob38.problem 
        !           743:       </p></td>
        !           744:     <td width=77 class="Normal"> <p> <img width=63 height=23
        !           745:   src="Session%20Tw2_files/image127.png" v:shapes="_x0000_i1067"> </p></td>
        !           746:   </tr>
        !           747:   <tr> 
        !           748:     <td width=15 class="Normal"> <p>13 </p></td>
        !           749:     <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/32_Fluids1_Pascal_Arch\/msu-prob12\.problem\0022 \\t \0022_blank\0022"'><span
        !           750:   class=MsoHyperlink><span style='color:blue'>Boat on Pond</span></span></span> 
        !           751:       </p></td>
        !           752:     <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/32_Fluids1_Pascal_Arch/msu-prob12.problem 
        !           753:       </p></td>
        !           754:     <td width=77 class="Normal"> <p> <img width=68 height=23
        !           755:   src="Session%20Tw2_files/image130.png" v:shapes="_x0000_i1068"> </p></td>
        !           756:   </tr>
        !           757:   <tr> 
        !           758:     <td width=15 class="Normal">&nbsp; </td>
        !           759:     <td width=83 bgcolor="white" class="Normal"> <p align=center style='text-align:center'>É</p></td>
        !           760:     <td width=298 bgcolor="white" class="Normal"> <p align=center style='text-align:center'>É</p></td>
        !           761:     <td width=77 class="Normal"> <p align=center style='text-align:center'>É</p></td>
        !           762:   </tr>
        !           763: </table>
        !           764: <p><span style='font-size:11.0pt'><b>Fig. 3.2.5</b></span><span
        !           765: style='font-size:11.0pt'>: Option response problems in course PHY183 SS02</span></p>
        !           766: <p><b>Fig. 3.2.5</b><span style='font-weight:normal'> includes a table, which 
        !           767:   shows the title of every option response problem in the first column. This title 
        !           768:   has a link to the original html page of the problem.&nbsp; In the second column 
        !           769:   the source address of the problem is shown. Third column of this table includes 
        !           770:   a button to analyze the studentsÕ data on this particular option response problem. 
        !           771:   When this button is clicked, all data about this problem is <i>restored</i></span>, 
        !           772:   for every student.&nbsp; Different versions of studentsÕ submissions are evaluated. 
        !           773:   The results are presented in a graphical chart as well as a numerical table. 
        !           774:   For example, if we select the analysis of&nbsp; <b>/res/msu/kashy/Testing/randomlabel/atwood3T2M.problem</b></p>
        !           775: <p> <span style='position:
        !           776: relative;z-index:0'><span style='position:absolute;left:-37px;top:-32px;
        !           777: width:248px;height:174px'> <table cellpadding=0 cellspacing=0> <tr> <td width=249 height=174 align=left valign=top bgcolor=white class="Normal"
        !           778:   style='border:.75pt solid black;vertical-align:top;background:white'><span
        !           779:   style='position:absolute;z-index:1'> 
        !           780:   <table cellpadding=0 cellspacing=0 width="100%">
        !           781:     <tr> 
        !           782:       <td class="Normal"> <div v:shape="_x0000_s1026" style='padding:3.6pt 7.2pt 3.6pt 7.2pt'
        !           783:     class=shape> 
        !           784:           <p class=FirstParagraph><span lang=PT-BR
        !           785:     style='font-size:9.0pt'>A frictionless, massless pulley is attached to the 
        !           786:             ceiling, in a gravity field g. Mass Ma is greater than mass Mb. The 
        !           787:             tensions Tx,Ty, Tz, and the constant g are magnitudes. (For each, 
        !           788:             select: Greater than, Less than, Equal to, True, or False) </span></p>
        !           789:           <p class=FirstParagraph><span lang=PT-BR style='font-size:9.0pt'> <img width=96 height=114
        !           790:     src="Session%20Tw2_files/image132.jpg" v:shapes="_x0000_i1069"> &nbsp; <img width=125 height=120
        !           791:     src="Session%20Tw2_files/image135.png" v:shapes="_x0000_i1070"> </span></p>
        !           792:         </div></td>
        !           793:     </tr>
        !           794:   </table>
        !           795:   &nbsp; </span></td></tr> </table> &nbsp; 
        !           796:   <p></p>
        !           797:   <br clear=all>
        !           798:   <p align=right style='text-align:right'> <span style='position:
        !           799: absolute;z-index:1;left:0px;margin-left:229px;margin-top:97px;width:235px;
        !           800: height:40px'> <table cellpadding=0 cellspacing=0> <tr> <td width=236 height=40 align=left valign=top bgcolor=white class="Normal" style='border:
        !           801:   .75pt solid white;vertical-align:top;background:white'><span
        !           802:   style='position:absolute;left:0pt;z-index:3'> 
        !           803:     <table cellpadding=0 cellspacing=0 width="100%">
        !           804:       <tr> 
        !           805:         <td class="Normal"> <div v:shape="_x0000_s1028" style='padding:3.6pt 7.2pt 3.6pt 7.2pt'
        !           806:     class=shape> 
        !           807:             <p><span style='font-size:9.0pt'><b>Fig. 3.2.7</b></span><span
        !           808:     style='font-size:9.0pt'>: Graphical chart of student tries for </span></p>
        !           809:             <p><span style='font-size:9.0pt'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
        !           810:               &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Atwood Machine Problem 
        !           811:               according </span></p>
        !           812:             <p><span style='font-size:9.0pt'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
        !           813:               to every concept in 1 interval time.</span></p>
        !           814:           </div></td>
        !           815:       </tr>
        !           816:     </table>
        !           817:     &nbsp; </span></td></tr> </table> <img width=203 height=150
        !           818: src="Session%20Tw2_files/image137.png" v:shapes="_x0000_i1071"> 
        !           819:     <p></p>
        !           820:     <p><span style='font-size:9.0pt'><b>Fig. 3.2.6</b></span><span
        !           821: style='font-size:9.0pt'>: Atwood Machine option response problem in HW3<b> </b></span></p>
        !           822:     <p><span style='font-size:11.0pt'>In addition, the data of studentsÕ tries 
        !           823:       are shown in a table as you see in <b>Fig. 3.2.8</b></span><span
        !           824: style='font-size:11.0pt'>. In the last row of the table you can see the time interval 
        !           825:       of this data and the overall correct and wrong answers separately. If an 
        !           826:       instructor wants to see the studentsÕ tries in different time intervals, 
        !           827:       he/she could set the number of intervals from 1 to 7 time intervals, and 
        !           828:       then recompute the analysis. </span></p>
        !           829:     <table border=1 cellspacing=0 cellpadding=0>
        !           830:       <tr> 
        !           831:         <td width=10 class="Normal"> <p align=center style='text-align:center'><b># 
        !           832:             </b></p></td>
        !           833:         <td width=357 class="Normal"> <p align=center style='text-align:center'><b>Concept 
        !           834:             </b></p></td>
        !           835:         <td width=38 class="Normal"> <p align=center style='text-align:center'><b>Correct 
        !           836:             </b></p></td>
        !           837:         <td width=35 class="Normal"> <p align=center style='text-align:center'><b>Wrong 
        !           838:             </b></p></td>
        !           839:       </tr>
        !           840:       <tr> 
        !           841:         <td width=10 class="Normal"> <p>1</p></td>
        !           842:         <td width=357 bgcolor="white" class="Normal"> <p>Two masses have same 
        !           843:             acceleration if the two the string does not stretch. </p></td>
        !           844:         <td width=38 bgcolor="white" class="Normal"> <p>1342 </p></td>
        !           845:         <td width=35 bgcolor="white" class="Normal"> <p>433 </p></td>
        !           846:       </tr>
        !           847:       <tr> 
        !           848:         <td width=10 class="Normal"> <p>2</p></td>
        !           849:         <td width=357 bgcolor="white" class="Normal"> <p>Weight of the two masses 
        !           850:             is greater than the tension of the string attached to the ceiling. 
        !           851:           </p></td>
        !           852:         <td width=38 bgcolor="white" class="Normal"> <p>585 </p></td>
        !           853:         <td width=35 bgcolor="white" class="Normal"> <p>1190 </p></td>
        !           854:       </tr>
        !           855:       <tr> 
        !           856:         <td width=10 class="Normal"> <p>3</p></td>
        !           857:         <td width=357 bgcolor="white" class="Normal"> <p>The top tension is equals 
        !           858:             the two bottom tensions. (massless pulley) </p></td>
        !           859:         <td width=38 bgcolor="white" class="Normal"> <p>1263 </p></td>
        !           860:         <td width=35 bgcolor="white" class="Normal"> <p>512 </p></td>
        !           861:       </tr>
        !           862:       <tr> 
        !           863:         <td width=10 class="Normal"> <p>4</p></td>
        !           864:         <td width=357 bgcolor="white" class="Normal"> <p>Tension holding the two 
        !           865:             masses are equal if mass of pulley=0 </p></td>
        !           866:         <td width=38 bgcolor="white" class="Normal"> <p>1087 </p></td>
        !           867:         <td width=35 bgcolor="white" class="Normal"> <p>688 </p></td>
        !           868:       </tr>
        !           869:       <tr> 
        !           870:         <td width=10 class="Normal"> <p>5</p></td>
        !           871:         <td width=357 bgcolor="white" class="Normal"> <p>Sub-System accelerates 
        !           872:             upwards or downwards accordingly </p></td>
        !           873:         <td width=38 bgcolor="white" class="Normal"> <p>757 </p></td>
        !           874:         <td width=35 bgcolor="white" class="Normal"> <p>1018 </p></td>
        !           875:       </tr>
        !           876:       <tr> 
        !           877:         <td width=10 class="Normal"> <p>6</p></td>
        !           878:         <td width=357 bgcolor="white" class="Normal"> <p>Center of mass accelerates 
        !           879:             downward </p></td>
        !           880:         <td width=38 bgcolor="white" class="Normal"> <p>1354 </p></td>
        !           881:         <td width=35 bgcolor="white" class="Normal"> <p>421 </p></td>
        !           882:       </tr>
        !           883:       <tr> 
        !           884:         <td width=10 class="Normal">&nbsp; </td>
        !           885:         <td width=357 class="Normal"> <p><b>From:[Thu Jan 24 00:46:22 2002] To: 
        !           886:             [Mon Feb 4 23:59:59 2002]</b></p></td>
        !           887:         <td width=38 class="Normal"> <p>6388</p></td>
        !           888:         <td width=35 class="Normal"> <p>4245</p></td>
        !           889:       </tr>
        !           890:     </table>
        !           891:     <p><span style='font-size:11.0pt'><b>Fig. 3.2.8</b></span><span
        !           892: style='font-size:11.0pt'>: Table of student tries for Atwood Machine Problem according 
        !           893:       to every concept in one time interval.</span></p>
        !           894:     <p> <span
        !           895: style='position:relative;z-index:2'><span style='position:
        !           896: absolute;left:-109px;top:-166px;width:341px;height:24px'> <img width=341
        !           897: height=24 src="Session%20Tw2_files/image138.png" v:shapes="_x0000_s1027"> <img width=203 height=150
        !           898: src="Session%20Tw2_files/image140.png" v:shapes="_x0000_i1072"> <img width=203 height=150
        !           899: src="Session%20Tw2_files/image142.png" v:shapes="_x0000_i1073"> 
        !           900:       <p></p>
        !           901:       <table border=1 cellspacing=0 cellpadding=0>
        !           902:         <tr> 
        !           903:           <td width=10 class="Normal"> <p align=center style='text-align:center'><b># 
        !           904:               </b></p></td>
        !           905:           <td width=357 class="Normal"> <p align=center style='text-align:center'><b>Concept 
        !           906:               </b></p></td>
        !           907:           <td width=38 class="Normal"> <p align=center style='text-align:center'><b>Correct 
        !           908:               </b></p></td>
        !           909:           <td width=35 class="Normal"> <p align=center style='text-align:center'><b>Wrong 
        !           910:               </b></p></td>
        !           911:         </tr>
        !           912:         <tr> 
        !           913:           <td width=10 class="Normal"> <p>1</p></td>
        !           914:           <td width=357 bgcolor="white" class="Normal"> <p>Two masses have same 
        !           915:               acceleration if the two the string does not stretch. </p></td>
        !           916:           <td width=38 bgcolor="white" class="Normal"> <p>124 </p></td>
        !           917:           <td width=35 bgcolor="white" class="Normal"> <p>98 </p></td>
        !           918:         </tr>
        !           919:         <tr> 
        !           920:           <td width=10 class="Normal"> <p>2</p></td>
        !           921:           <td width=357 bgcolor="white" class="Normal"> <p>Weight of the two masses 
        !           922:               is greater than the tension of the string attached to the ceiling. 
        !           923:             </p></td>
        !           924:           <td width=38 bgcolor="white" class="Normal"> <p>44 </p></td>
        !           925:           <td width=35 bgcolor="white" class="Normal"> <p>178 </p></td>
        !           926:         </tr>
        !           927:         <tr> 
        !           928:           <td width=10 class="Normal"> <p>3</p></td>
        !           929:           <td width=357 bgcolor="white" class="Normal"> <p>The top tension is 
        !           930:               equals the two bottom tensions. (massless pulley) </p></td>
        !           931:           <td width=38 bgcolor="white" class="Normal"> <p>142 </p></td>
        !           932:           <td width=35 bgcolor="white" class="Normal"> <p>80 </p></td>
        !           933:         </tr>
        !           934:         <tr> 
        !           935:           <td width=10 class="Normal"> <p>4</p></td>
        !           936:           <td width=357 bgcolor="white" class="Normal"> <p>Tension holding the 
        !           937:               two masses are equal if mass of pulley=0 </p></td>
        !           938:           <td width=38 bgcolor="white" class="Normal"> <p>125 </p></td>
        !           939:           <td width=35 bgcolor="white" class="Normal"> <p>97 </p></td>
        !           940:         </tr>
        !           941:         <tr> 
        !           942:           <td width=10 class="Normal"> <p>5</p></td>
        !           943:           <td width=357 bgcolor="white" class="Normal"> <p>Sub-System accelerates 
        !           944:               upwards or downwards accordingly </p></td>
        !           945:           <td width=38 bgcolor="white" class="Normal"> <p>64 </p></td>
        !           946:           <td width=35 bgcolor="white" class="Normal"> <p>158 </p></td>
        !           947:         </tr>
        !           948:         <tr> 
        !           949:           <td width=10 class="Normal"> <p>6</p></td>
        !           950:           <td width=357 bgcolor="white" class="Normal"> <p>Center of mass accelerates 
        !           951:               downward </p></td>
        !           952:           <td width=38 bgcolor="white" class="Normal"> <p>151 </p></td>
        !           953:           <td width=35 bgcolor="white" class="Normal"> <p>71 </p></td>
        !           954:         </tr>
        !           955:         <tr> 
        !           956:           <td width=10 class="Normal">&nbsp; </td>
        !           957:           <td width=357 class="Normal"> <p><b>From:[Thu Jan 24 00:46:22 2002] 
        !           958:               To: [Wed Jan 30 00:23:10 2002]</b></p></td>
        !           959:           <td width=38 class="Normal"> <p>650</p></td>
        !           960:           <td width=35 class="Normal"> <p>682</p></td>
        !           961:         </tr>
        !           962:       </table>
        !           963:       <table border=1 cellspacing=0 cellpadding=0>
        !           964:         <tr> 
        !           965:           <td width=10 class="Normal"> <p align=center style='text-align:center'><b># 
        !           966:               </b></p></td>
        !           967:           <td width=357 class="Normal"> <p align=center style='text-align:center'><b>Concept 
        !           968:               </b></p></td>
        !           969:           <td width=38 class="Normal"> <p align=center style='text-align:center'><b>Correct 
        !           970:               </b></p></td>
        !           971:           <td width=35 class="Normal"> <p align=center style='text-align:center'><b>Wrong 
        !           972:               </b></p></td>
        !           973:         </tr>
        !           974:         <tr> 
        !           975:           <td width=10 class="Normal"> <p>1</p></td>
        !           976:           <td width=357 bgcolor="white" class="Normal"> <p>Two masses have same 
        !           977:               acceleration if the two the string does not stretch. </p></td>
        !           978:           <td width=38 bgcolor="white" class="Normal"> <p>1218 </p></td>
        !           979:           <td width=35 bgcolor="white" class="Normal"> <p>335 </p></td>
        !           980:         </tr>
        !           981:         <tr> 
        !           982:           <td width=10 class="Normal"> <p>2</p></td>
        !           983:           <td width=357 bgcolor="white" class="Normal"> <p>Weight of the two masses 
        !           984:               is greater than the tension of the string attached to the ceiling. 
        !           985:             </p></td>
        !           986:           <td width=38 bgcolor="white" class="Normal"> <p>541 </p></td>
        !           987:           <td width=35 bgcolor="white" class="Normal"> <p>1012 </p></td>
        !           988:         </tr>
        !           989:         <tr> 
        !           990:           <td width=10 class="Normal"> <p>3</p></td>
        !           991:           <td width=357 bgcolor="white" class="Normal"> <p>The top tension is 
        !           992:               equals the two bottom tensions. (massless pulley) </p></td>
        !           993:           <td width=38 bgcolor="white" class="Normal"> <p>1121 </p></td>
        !           994:           <td width=35 bgcolor="white" class="Normal"> <p>432 </p></td>
        !           995:         </tr>
        !           996:         <tr> 
        !           997:           <td width=10 class="Normal"> <p>4</p></td>
        !           998:           <td width=357 bgcolor="white" class="Normal"> <p>Tension holding the 
        !           999:               two masses are equal if mass of pulley=0 </p></td>
        !          1000:           <td width=38 bgcolor="white" class="Normal"> <p>962 </p></td>
        !          1001:           <td width=35 bgcolor="white" class="Normal"> <p>591 </p></td>
        !          1002:         </tr>
        !          1003:         <tr> 
        !          1004:           <td width=10 class="Normal"> <p>5</p></td>
        !          1005:           <td width=357 bgcolor="white" class="Normal"> <p>Sub-System accelerates 
        !          1006:               upwards or downwards accordingly </p></td>
        !          1007:           <td width=38 bgcolor="white" class="Normal"> <p>693 </p></td>
        !          1008:           <td width=35 bgcolor="white" class="Normal"> <p>860 </p></td>
        !          1009:         </tr>
        !          1010:         <tr> 
        !          1011:           <td width=10 class="Normal"> <p>6</p></td>
        !          1012:           <td width=357 bgcolor="white" class="Normal"> <p>Center of mass accelerates 
        !          1013:               downward </p></td>
        !          1014:           <td width=38 bgcolor="white" class="Normal"> <p>1203 </p></td>
        !          1015:           <td width=35 bgcolor="white" class="Normal"> <p>350 </p></td>
        !          1016:         </tr>
        !          1017:         <tr> 
        !          1018:           <td width=10 class="Normal">&nbsp; </td>
        !          1019:           <td width=357 class="Normal"> <p><b>From:[Wed Jan 30 00:23:11 2002] 
        !          1020:               To: [Mon Feb 4 23:59:59 2002]</b></p></td>
        !          1021:           <td width=38 class="Normal"> <p>5738</p></td>
        !          1022:           <td width=35 class="Normal"> <p>3563</p></td>
        !          1023:         </tr>
        !          1024:       </table>
        !          1025:       <p><span style='font-size:11.0pt'><b>Fig. 3.2.9</b></span><span
        !          1026: style='font-size:11.0pt'>: Table of student tries for Atwood Machine Problem according 
        !          1027:         to every concept in 2 times interval.</span></p>
        !          1028:       <p>In <b>Fig. 3.2.9</b><span style='font-weight:normal'>, number of studentsÕ 
        !          1029:         tries tables and the graphical chart are shown in 2 different time intervals. 
        !          1030:         An instructor would be able to check whether the students have more wrong 
        !          1031:         answers during the first days of opening the homework set, and how many 
        !          1032:         students have tried during the first or the second interval. Since the 
        !          1033:         problems are individualized he/she might be able to see how many students 
        !          1034:         have tried to solve the problem after communicating with each other and 
        !          1035:         understanding the concept.&nbsp; In Fig. 3.2. 10 the charts and tables 
        !          1036:         of studentsÕ tries are shown in 3 time intervals. So if the homework should 
        !          1037:         be done in one week, an instructor would be able to observe the distribution 
        !          1038:         of studentsÕ tries every day separately after choosing the 7 time intervals.</span></p>
        !          1039:       <p> <img width=151 height=150
        !          1040: src="Session%20Tw2_files/image144.png" v:shapes="_x0000_i1074"> <img width=151 height=150
        !          1041: src="Session%20Tw2_files/image146.png" v:shapes="_x0000_i1075"> <img width=149 height=150
        !          1042: src="Session%20Tw2_files/image148.png" v:shapes="_x0000_i1076"> </p>
        !          1043:       <table border=1 cellspacing=0 cellpadding=0>
        !          1044:         <tr> 
        !          1045:           <td width=10 class="Normal"> <p align=center style='text-align:center'><b># 
        !          1046:               </b></p></td>
        !          1047:           <td width=357 class="Normal"> <p align=center style='text-align:center'><b>Concept 
        !          1048:               </b></p></td>
        !          1049:           <td width=38 class="Normal"> <p align=center style='text-align:center'><b>Correct 
        !          1050:               </b></p></td>
        !          1051:           <td width=35 class="Normal"> <p align=center style='text-align:center'><b>Wrong 
        !          1052:               </b></p></td>
        !          1053:         </tr>
        !          1054:         <tr> 
        !          1055:           <td width=10 class="Normal"> <p>1</p></td>
        !          1056:           <td width=357 bgcolor="white" class="Normal"> <p>Two masses have same 
        !          1057:               acceleration if the two the string does not stretch. </p></td>
        !          1058:           <td width=38 bgcolor="white" class="Normal"> <p>31 </p></td>
        !          1059:           <td width=35 bgcolor="white" class="Normal"> <p>30 </p></td>
        !          1060:         </tr>
        !          1061:         <tr> 
        !          1062:           <td width=10 class="Normal"> <p>2</p></td>
        !          1063:           <td width=357 bgcolor="white" class="Normal"> <p>Weight of the two masses 
        !          1064:               is greater than the tension of the string attached to the ceiling. 
        !          1065:             </p></td>
        !          1066:           <td width=38 bgcolor="white" class="Normal"> <p>8 </p></td>
        !          1067:           <td width=35 bgcolor="white" class="Normal"> <p>53 </p></td>
        !          1068:         </tr>
        !          1069:         <tr> 
        !          1070:           <td width=10 class="Normal"> <p>3</p></td>
        !          1071:           <td width=357 bgcolor="white" class="Normal"> <p>The top tension is 
        !          1072:               equals the two bottom tensions. (massless pulley) </p></td>
        !          1073:           <td width=38 bgcolor="white" class="Normal"> <p>44 </p></td>
        !          1074:           <td width=35 bgcolor="white" class="Normal"> <p>17 </p></td>
        !          1075:         </tr>
        !          1076:         <tr> 
        !          1077:           <td width=10 class="Normal"> <p>4</p></td>
        !          1078:           <td width=357 bgcolor="white" class="Normal"> <p>Tension holding the 
        !          1079:               two masses are equal if mass of pulley=0 </p></td>
        !          1080:           <td width=38 bgcolor="white" class="Normal"> <p>32 </p></td>
        !          1081:           <td width=35 bgcolor="white" class="Normal"> <p>29 </p></td>
        !          1082:         </tr>
        !          1083:         <tr> 
        !          1084:           <td width=10 class="Normal"> <p>5</p></td>
        !          1085:           <td width=357 bgcolor="white" class="Normal"> <p>Sub-System accelerates 
        !          1086:               upwards or downwards accordingly </p></td>
        !          1087:           <td width=38 bgcolor="white" class="Normal"> <p>20 </p></td>
        !          1088:           <td width=35 bgcolor="white" class="Normal"> <p>41 </p></td>
        !          1089:         </tr>
        !          1090:         <tr> 
        !          1091:           <td width=10 class="Normal"> <p>6</p></td>
        !          1092:           <td width=357 bgcolor="white" class="Normal"> <p>Center of mass accelerates 
        !          1093:               downward </p></td>
        !          1094:           <td width=38 bgcolor="white" class="Normal"> <p>42 </p></td>
        !          1095:           <td width=35 bgcolor="white" class="Normal"> <p>19 </p></td>
        !          1096:         </tr>
        !          1097:         <tr> 
        !          1098:           <td width=10 class="Normal">&nbsp; </td>
        !          1099:           <td width=357 class="Normal"> <p><b>From:[Thu Jan 24 00:46:22 2002] 
        !          1100:               To: [Mon Jan 28 00:30:53 2002]</b></p></td>
        !          1101:           <td width=38 class="Normal"> <p>177</p></td>
        !          1102:           <td width=35 class="Normal"> <p>189</p></td>
        !          1103:         </tr>
        !          1104:       </table>
        !          1105:       <table border=1 cellspacing=0 cellpadding=0>
        !          1106:         <tr> 
        !          1107:           <td width=10 class="Normal"> <p align=center style='text-align:center'><b># 
        !          1108:               </b></p></td>
        !          1109:           <td width=357 class="Normal"> <p align=center style='text-align:center'><b>Concept 
        !          1110:               </b></p></td>
        !          1111:           <td width=38 class="Normal"> <p align=center style='text-align:center'><b>Correct 
        !          1112:               </b></p></td>
        !          1113:           <td width=35 class="Normal"> <p align=center style='text-align:center'><b>Wrong 
        !          1114:               </b></p></td>
        !          1115:         </tr>
        !          1116:         <tr> 
        !          1117:           <td width=10 class="Normal"> <p>1</p></td>
        !          1118:           <td width=357 bgcolor="white" class="Normal"> <p>Two masses have same 
        !          1119:               acceleration if the two the string does not stretch. </p></td>
        !          1120:           <td width=38 bgcolor="white" class="Normal"> <p>692 </p></td>
        !          1121:           <td width=35 bgcolor="white" class="Normal"> <p>257 </p></td>
        !          1122:         </tr>
        !          1123:         <tr> 
        !          1124:           <td width=10 class="Normal"> <p>2</p></td>
        !          1125:           <td width=357 bgcolor="white" class="Normal"> <p>Weight of the two masses 
        !          1126:               is greater than the tension of the string attached to the ceiling. 
        !          1127:             </p></td>
        !          1128:           <td width=38 bgcolor="white" class="Normal"> <p>321 </p></td>
        !          1129:           <td width=35 bgcolor="white" class="Normal"> <p>628 </p></td>
        !          1130:         </tr>
        !          1131:         <tr> 
        !          1132:           <td width=10 class="Normal"> <p>3</p></td>
        !          1133:           <td width=357 bgcolor="white" class="Normal"> <p>The top tension is 
        !          1134:               equals the two bottom tensions. (massless pulley) </p></td>
        !          1135:           <td width=38 bgcolor="white" class="Normal"> <p>690 </p></td>
        !          1136:           <td width=35 bgcolor="white" class="Normal"> <p>259 </p></td>
        !          1137:         </tr>
        !          1138:         <tr> 
        !          1139:           <td width=10 class="Normal"> <p>4</p></td>
        !          1140:           <td width=357 bgcolor="white" class="Normal"> <p>Tension holding the 
        !          1141:               two masses are equal if mass of pulley=0 </p></td>
        !          1142:           <td width=38 bgcolor="white" class="Normal"> <p>590 </p></td>
        !          1143:           <td width=35 bgcolor="white" class="Normal"> <p>359 </p></td>
        !          1144:         </tr>
        !          1145:         <tr> 
        !          1146:           <td width=10 class="Normal"> <p>5</p></td>
        !          1147:           <td width=357 bgcolor="white" class="Normal"> <p>Sub-System accelerates 
        !          1148:               upwards or downwards accordingly </p></td>
        !          1149:           <td width=38 bgcolor="white" class="Normal"> <p>399 </p></td>
        !          1150:           <td width=35 bgcolor="white" class="Normal"> <p>550 </p></td>
        !          1151:         </tr>
        !          1152:         <tr> 
        !          1153:           <td width=10 class="Normal"> <p>6</p></td>
        !          1154:           <td width=357 bgcolor="white" class="Normal"> <p>Center of mass accelerates 
        !          1155:               downward </p></td>
        !          1156:           <td width=38 bgcolor="white" class="Normal"> <p>703 </p></td>
        !          1157:           <td width=35 bgcolor="white" class="Normal"> <p>246 </p></td>
        !          1158:         </tr>
        !          1159:         <tr> 
        !          1160:           <td width=10 class="Normal">&nbsp; </td>
        !          1161:           <td width=357 class="Normal"> <p><b>From:[Mon Jan 28 00:30:54 2002] 
        !          1162:               To: [Fri Feb 1 00:15:25 2002]</b></p></td>
        !          1163:           <td width=38 class="Normal"> <p>3395</p></td>
        !          1164:           <td width=35 class="Normal"> <p>2281</p></td>
        !          1165:         </tr>
        !          1166:       </table>
        !          1167:       <table border=1 cellspacing=0 cellpadding=0>
        !          1168:         <tr> 
        !          1169:           <td width=10 class="Normal"> <p align=center style='text-align:center'><b># 
        !          1170:               </b></p></td>
        !          1171:           <td width=357 class="Normal"> <p align=center style='text-align:center'><b>Concept 
        !          1172:               </b></p></td>
        !          1173:           <td width=38 class="Normal"> <p align=center style='text-align:center'><b>Correct 
        !          1174:               </b></p></td>
        !          1175:           <td width=35 class="Normal"> <p align=center style='text-align:center'><b>Wrong 
        !          1176:               </b></p></td>
        !          1177:         </tr>
        !          1178:         <tr> 
        !          1179:           <td width=10 class="Normal"> <p>1</p></td>
        !          1180:           <td width=357 bgcolor="white" class="Normal"> <p>Two masses have same 
        !          1181:               acceleration if the two the string does not stretch. </p></td>
        !          1182:           <td width=38 bgcolor="white" class="Normal"> <p>619 </p></td>
        !          1183:           <td width=35 bgcolor="white" class="Normal"> <p>147 </p></td>
        !          1184:         </tr>
        !          1185:         <tr> 
        !          1186:           <td width=10 class="Normal"> <p>2</p></td>
        !          1187:           <td width=357 bgcolor="white" class="Normal"> <p>Weight of the two masses 
        !          1188:               is greater than the tension of the string attached to the ceiling. 
        !          1189:             </p></td>
        !          1190:           <td width=38 bgcolor="white" class="Normal"> <p>256 </p></td>
        !          1191:           <td width=35 bgcolor="white" class="Normal"> <p>510 </p></td>
        !          1192:         </tr>
        !          1193:         <tr> 
        !          1194:           <td width=10 class="Normal"> <p>3</p></td>
        !          1195:           <td width=357 bgcolor="white" class="Normal"> <p>The top tension is 
        !          1196:               equals the two bottom tensions. (massless pulley) </p></td>
        !          1197:           <td width=38 bgcolor="white" class="Normal"> <p>529 </p></td>
        !          1198:           <td width=35 bgcolor="white" class="Normal"> <p>237 </p></td>
        !          1199:         </tr>
        !          1200:         <tr> 
        !          1201:           <td width=10 class="Normal"> <p>4</p></td>
        !          1202:           <td width=357 bgcolor="white" class="Normal"> <p>Tension holding the 
        !          1203:               two masses are equal if mass of pulley=0 </p></td>
        !          1204:           <td width=38 bgcolor="white" class="Normal"> <p>465 </p></td>
        !          1205:           <td width=35 bgcolor="white" class="Normal"> <p>301 </p></td>
        !          1206:         </tr>
        !          1207:         <tr> 
        !          1208:           <td width=10 class="Normal"> <p>5</p></td>
        !          1209:           <td width=357 bgcolor="white" class="Normal"> <p>Sub-System accelerates 
        !          1210:               upwards or downwards accordingly </p></td>
        !          1211:           <td width=38 bgcolor="white" class="Normal"> <p>338 </p></td>
        !          1212:           <td width=35 bgcolor="white" class="Normal"> <p>428 </p></td>
        !          1213:         </tr>
        !          1214:         <tr> 
        !          1215:           <td width=10 class="Normal"> <p>6</p></td>
        !          1216:           <td width=357 bgcolor="white" class="Normal"> <p>Center of mass accelerates 
        !          1217:               downward </p></td>
        !          1218:           <td width=38 bgcolor="white" class="Normal"> <p>609 </p></td>
        !          1219:           <td width=35 bgcolor="white" class="Normal"> <p>157 </p></td>
        !          1220:         </tr>
        !          1221:         <tr> 
        !          1222:           <td width=10 class="Normal">&nbsp; </td>
        !          1223:           <td width=357 class="Normal"> <p><b>From:[Fri Feb 1 00:15:26 2002] To: 
        !          1224:               [Mon Feb 4 23:59:59 2002]</b></p></td>
        !          1225:           <td width=38 class="Normal"> <p>2816</p></td>
        !          1226:           <td width=35 class="Normal"> <p>1775</p></td>
        !          1227:         </tr>
        !          1228:       </table>
        !          1229:       <p><b>Fig. 3.2. 10</b><span style='font-weight:normal'>: Table of student 
        !          1230:         tries for Atwood Machine Problem according to every concept in 3 times 
        !          1231:         interval.</span></p>
        !          1232:       <h3><a name="_Toc421867142">Student Assessment</a></h3>
        !          1233:       <p class=MsoBodyText2><span style='font-size:11.0pt'>This option provides 
        !          1234:         some reports about the current educational situation of every student 
        !          1235:         as you see in <b>Fig. 3.2.11</b></span><span style='font-size:11.0pt'>.&nbsp; 
        !          1236:         A ÔYÕ show that the student has solved the problem and ÔNÕ shows his/her 
        !          1237:         failure.&nbsp; A Ô-Ô denotes a unattempted problem. The numbers in the 
        !          1238:         right column show the total number of tries of the student in solving 
        !          1239:         the corresponding problems.</span></p>
        !          1240:       <form>
        !          1241:         <div style='border:solid windowtext .5pt;padding:1.0pt 0in 1.0pt 4.0pt'> 
        !          1242:           <p style='border:none;padding:0in;'>Total number of students : 263<br>
        !          1243:             <br>
        !          1244:             <img width=68 height=23
        !          1245: src="Session%20Tw2_files/image151.png" v:shapes="_x0000_i1077"> <br>
        !          1246:             <b>Select &nbsp; Map &nbsp; &nbsp; </b><span style='font-weight:normal'> 
        !          1247:             <img width=215 height=18
        !          1248: src="Session%20Tw2_files/image154.png" v:shapes="_x0000_i1078"> &nbsp;&nbsp;&nbsp;<br>
        !          1249:             </span><b>Select Section</b><span style='font-weight:normal'> <img width=89 height=18
        !          1250: src="Session%20Tw2_files/image157.png" v:shapes="_x0000_i1079"> <br>
        !          1251:             </span><b>Select Student</b><span style='font-weight:normal'> <img width=89 height=18
        !          1252: src="Session%20Tw2_files/image160.png" v:shapes="_x0000_i1080"> <br>
        !          1253:             <br>
        !          1254:             </span></p>
        !          1255:           <p style='border:none;padding:0in;'> <img width=93 height=23
        !          1256: src="Session%20Tw2_files/image163.png" v:shapes="_x0000_i1081"> </p>
        !          1257:         </div>
        !          1258:         <table border=1 cellspacing=0 cellpadding=0>
        !          1259:           <tr> 
        !          1260:             <td width=21 class="Normal"> <p align=center style='text-align:center;line-height:150%'><b># 
        !          1261:                 </b></p></td>
        !          1262:             <td width=177 class="Normal"> <p align=center style='text-align:center;line-height:150%'><b>Set 
        !          1263:                 Title </b></p></td>
        !          1264:             <td width=122 class="Normal"> <p align=center style='text-align:center;line-height:150%'><b>Results 
        !          1265:                 </b></p></td>
        !          1266:             <td width=153 class="Normal"> <p align=center style='text-align:center;line-height:150%'><b>Tries 
        !          1267:                 </b></p></td>
        !          1268:           </tr>
        !          1269:           <tr> 
        !          1270:             <td width=21 class="Normal"> <p style='line-height:150%'>1 </p></td>
        !          1271:             <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/phy183.sequence 
        !          1272:               </p></td>
        !          1273:             <td width=122 class="Normal">&nbsp; </td>
        !          1274:             <td width=153 class="Normal">&nbsp; </td>
        !          1275:           </tr>
        !          1276:           <tr> 
        !          1277:             <td width=21 class="Normal"> <p style='line-height:150%'>2 </p></td>
        !          1278:             <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap1/calckap1.sequence 
        !          1279:               </p></td>
        !          1280:             <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYYYYYYYYYY 
        !          1281:                 </span></p></td>
        !          1282:             <td width=153 class="Normal"> <p style='line-height:150%'>1,1,1,2,1,1,1,1,1,7,9,3,2</p></td>
        !          1283:           </tr>
        !          1284:           <tr> 
        !          1285:             <td width=21 class="Normal"> <p style='line-height:150%'>3 </p></td>
        !          1286:             <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap2/calckap2.sequence 
        !          1287:               </p></td>
        !          1288:             <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYNYYYYNNYYYYYYYY 
        !          1289:                 </span></p></td>
        !          1290:             <td width=153 class="Normal"> <p style='line-height:150%'>10,1,0,1,1,2,1,4,5,1,1,1,3,2,1,1,1</p></td>
        !          1291:           </tr>
        !          1292:           <tr> 
        !          1293:             <td width=21 class="Normal"> <p style='line-height:150%'>4 </p></td>
        !          1294:             <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap3/calckap3.sequence 
        !          1295:               </p></td>
        !          1296:             <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYYYYYNYYYYYYYYYY 
        !          1297:                 </span></p></td>
        !          1298:             <td width=153 class="Normal"> <p style='line-height:150%'>4,3,5,1,1,8,2,3,20,1,1,1,1,1,2,3,2,2,3</p></td>
        !          1299:           </tr>
        !          1300:           <tr> 
        !          1301:             <td width=21 class="Normal"> <p style='line-height:150%'>5 </p></td>
        !          1302:             <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap4/calckap4.sequence 
        !          1303:               </p></td>
        !          1304:             <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>NYYYYYYYYYYYYYYY 
        !          1305:                 </span></p></td>
        !          1306:             <td width=153 class="Normal"> <p style='line-height:150%'>20,1,1,1,3,3,2,3,4,2,3,2,1,1,2,5</p></td>
        !          1307:           </tr>
        !          1308:           <tr> 
        !          1309:             <td width=21 class="Normal"> <p style='line-height:150%'>6 </p></td>
        !          1310:             <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap5/calckap5.sequence 
        !          1311:               </p></td>
        !          1312:             <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYYYYYYYY-YY 
        !          1313:                 </span></p></td>
        !          1314:             <td width=153 class="Normal"> <p style='line-height:150%'>5,2,1,9,12,1,3,12,1,2,1,,1,3</p></td>
        !          1315:           </tr>
        !          1316:           <tr> 
        !          1317:             <td width=21 class="Normal"> <p style='line-height:150%'>7 </p></td>
        !          1318:             <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap6/calckap6.sequence 
        !          1319:               </p></td>
        !          1320:             <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYYYYYYYYYYY 
        !          1321:                 </span></p></td>
        !          1322:             <td width=153 class="Normal"> <p style='line-height:150%'>3,2,4,2,1,1,2,1,1,9,2,3,2,2</p></td>
        !          1323:           </tr>
        !          1324:           <tr> 
        !          1325:             <td width=21 class="Normal"> <p style='line-height:150%'>8 </p></td>
        !          1326:             <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap7/calckap7.sequence 
        !          1327:               </p></td>
        !          1328:             <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYYYYYYYYYYYYYYY 
        !          1329:                 </span></p></td>
        !          1330:             <td width=153 class="Normal"> <p style='line-height:150%'>4,1,3,1,10,4,1,1,2,1,1,2,1,2,1,3,1,3</p></td>
        !          1331:           </tr>
        !          1332:           <tr> 
        !          1333:             <td width=21 class="Normal"> <p style='line-height:150%'>9 </p></td>
        !          1334:             <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap8/calckap8.sequence 
        !          1335:               </p></td>
        !          1336:             <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYYYYYYYYYYYY 
        !          1337:                 </span></p></td>
        !          1338:             <td width=153 class="Normal"> <p style='line-height:150%'>4,3,1,2,3,3,4,3,3,1,1,4,1,1,7</p></td>
        !          1339:           </tr>
        !          1340:           <tr> 
        !          1341:             <td width=21 class="Normal"> <p style='line-height:150%'>10 </p></td>
        !          1342:             <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap9/calckap9.sequence 
        !          1343:               </p></td>
        !          1344:             <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYN-NYYNY 
        !          1345:                 </span></p></td>
        !          1346:             <td width=153 class="Normal"> <p style='line-height:150%'>1,1,1,2,1,,2,2,1,6,4</p></td>
        !          1347:           </tr>
        !          1348:           <tr> 
        !          1349:             <td width=21 class="Normal"> <p style='line-height:150%'>11 </p></td>
        !          1350:             <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap10/calckap10.sequence 
        !          1351:               </p></td>
        !          1352:             <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYYYYYYYYY 
        !          1353:                 </span></p></td>
        !          1354:             <td width=153 class="Normal"> <p style='line-height:150%'>2,1,1,1,1,1,1,1,1,1,1,1</p></td>
        !          1355:           </tr>
        !          1356:           <tr> 
        !          1357:             <td width=21 class="Normal"> <p style='line-height:150%'>12 </p></td>
        !          1358:             <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap11/calckap11.sequence 
        !          1359:               </p></td>
        !          1360:             <td width=122 class="Normal"> <p style='line-height:150%'>----------------- 
        !          1361:               </p></td>
        !          1362:             <td width=153 class="Normal"> <p style='line-height:150%'>0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</p></td>
        !          1363:           </tr>
        !          1364:         </table>
        !          1365:         <p><span style='layout-grid-mode:line'><b>Fig. 3.2. 5</b></span><span
        !          1366: style='layout-grid-mode:line'>: A sample of a student homework results and tries</span></p>
        !          1367:         <p><span style='font-size:11.0pt;layout-grid-mode:line'>We plan to present 
        !          1368:           several other reports in this page as well. Some student classification 
        !          1369:           reports also would be depicted here.</span></p>
        !          1370:         <p><span style='font-size:11.0pt;layout-grid-mode:line'>In Òproblem statsÓ 
        !          1371:           and Òstudent assessmentÓ pages, an instructor can limit the range of 
        !          1372:           his/her information to a particular section or a particular homework 
        !          1373:           set.&nbsp; So, an instructor would be able to load the statistics table 
        !          1374:           or student tries in Òstudent assessmentÓ table to a particular map or 
        !          1375:           section. </span><span style='font-size:11.0pt'>After changing the map 
        !          1376:           or section, he/she would be able to see the results via the recalculating 
        !          1377:           the computation on that page. </span><span style='font-size:11.0pt;
        !          1378: font-family:Arial;layout-grid-mode:line'></span></p>
        !          1379:         <h3><a name="_Toc421867143"><span style='layout-grid-mode:line'>Future 
        !          1380:           work, using activity.log to classify the students</span></a></h3>
        !          1381:         <p><span style='font-size:11.0pt'>The problem is whether we can find the 
        !          1382:           good features for <i>classifying</i></span><span style='font-size:
        !          1383: 11.0pt'> students? If so, we would be able to identify a <i>predictor</i></span><span
        !          1384: style='font-size:11.0pt'> for any individual student after doing a couple of homework 
        !          1385:           sets. With this information, we would be able to <i>help</i></span><span
        !          1386: style='font-size:11.0pt'> a student use the resources better.&nbsp; <span style='layout-grid-mode:line'>As 
        !          1387:           the first step of data mining stuff w</span>e want to make an initial 
        !          1388:           effort to classify the students. </span></p>
        !          1389:         <p><span style='font-size:11.0pt'>Preprocessing and finding the useful 
        !          1390:           student data and segmenting may be a difficult task. Internally, one 
        !          1391:           part of this data is stored in a student directory:</span></p>
        !          1392:         <p><span style='font-size:11.0pt'>&nbsp;</span><span style='font-size:11.0pt;font-family:"Courier New"'>/</span><span
        !          1393: style='font-size:9.0pt;font-family:"Courier New"'>home/httpd/lonUsers/<i>domain</i></span><span
        !          1394: style='font-size:9.0pt;font-family:"Courier New"'>/<i>1st.char</i></span><span
        !          1395: style='font-size:9.0pt;font-family:"Courier New"'>/<i>2nd.char</i></span><span
        !          1396: style='font-size:9.0pt;font-family:"Courier New"'>/<i>3rd.char</i></span><span
        !          1397: style='font-size:9.0pt;font-family:"Courier New"'>/<i>username</i></span><span
        !          1398: style='font-size:9.0pt;font-family:"Courier New"'>/</span></p>
        !          1399:         <p class=MsoHeader><span style='font-size:11.0pt'>For example: /home/httpd/lonUsers/msu/m/i/n/minaeibi/</span></p>
        !          1400:         <p><span style='font-size:11.0pt;layout-grid-mode:line'>Since spring semester 
        !          1401:           2002, LON-CAPA has logged every activity of every student who has used</span><span style='font-size:11.0pt'> 
        !          1402:           online educational resources and their recorded paths through the web. 
        !          1403:           So another part of data is stored in Òactivity.logÓ which is located 
        !          1404:           in course directory.</span></p>
        !          1405:         <p><span style='font-size:11.0pt'>The student data restored from .db files 
        !          1406:           in student directory and is fetched into a hash table. The special hash 
        !          1407:           keys Ò<i>keysÓ</i></span><span style='font-size:11.0pt'>, Ò<i>versionÓ</i></span><span
        !          1408: style='font-size:11.0pt'> and Ò<i>timestampÓ</i></span><span style='font-size:
        !          1409: 11.0pt'> were evaluated from the hash. The <i>version</i></span><span
        !          1410: style='font-size:11.0pt'> will be equal to the total number of versions of the 
        !          1411:           data that have been stored. The <i>timestamp</i></span><span style='font-size:
        !          1412: 11.0pt'> attribute is the UNIX time the data was stored. <i>keys</i></span><span
        !          1413: style='font-size:11.0pt'> is available in every historical section to list which 
        !          1414:           keys were added or changed at a specific historical revision of a hash. 
        !          1415:           We extract the features from a structured homework data, which is stored 
        !          1416:           as particular URLÕs. For example the result of solving homeworkÕs problem 
        !          1417:           by students could be extracted from </span><span style='font-size:9.0pt;
        !          1418: font-family:"Courier New"'><i>resource.partid.solved</i></span><span
        !          1419: style='font-size:11.0pt;font-family:"Courier New"'>, </span><span
        !          1420: style='font-size:11.0pt'>the total number of the students for solving the problem 
        !          1421:           could be extracted from </span><span style='font-size:9.0pt;font-family:
        !          1422: "Courier New"'><i>resource.partid.tries</i></span><span style='font-size:11.0pt;
        !          1423: font-family:"Courier New"'>,</span><span style='font-size:11.0pt'> and so forth.</span></p>
        !          1424:         <p><span style='font-size:11.0pt'>All data stored in activity.log includes 
        !          1425:           <i>user name</i></span><span style='font-size:11.0pt'>, <i>time</i></span><span
        !          1426: style='font-size:11.0pt'> and <i>resource URL</i></span><span style='font-size:
        !          1427: 11.0pt'>. We can divide these data into six types of URLs, listed below, according 
        !          1428:           to their importance for data mining: </span></p>
        !          1429:         <p style='line-height:150%'><span style='font-size:11.0pt'>1. <b><u>problems:</u></b></span><span
        !          1430: style='font-size:11.0pt'> are the most useful data. i.e.<b><u> </u></b></span><span
        !          1431: style='font-size:7.0pt'><b><u>msu/mmp/kap14/kap14.sequence___33___msu/mmp/kap14/problems/cd418a.problem</u></b></span> 
        !          1432:           <br>
        !          1433:           <span style='font-size:11.0pt'>2. <b>html pages</b></span><span
        !          1434: style='font-size:11.0pt'> to those are some links in the problems. i.e. </span><span
        !          1435: style='font-size:7.0pt'><b>msu/mmp/kap14/kap14.sequence___5___msu/mmp/kap14/cd396.htm</b></span> 
        !          1436:           <br>
        !          1437:           <span style='font-size:11.0pt'>3. <i>the images</i></span><span
        !          1438: style='font-size:11.0pt'>, which are loaded in above html pages. i.e. <i>/res/msu/mmp/kap14/picts/backsoun.gif</i></span><span
        !          1439: style='font-size:11.0pt'> .</span></p>
        !          1440:         <p style='line-height:150%'><span style='font-size:11.0pt'>4. <u>loncapa 
        !          1441:           routines</u>: i.e. <u>/adm/navmaps,</u>&nbsp; or&nbsp; <u>/adm/roles,</u> 
        !          1442:           or&nbsp; <u>/adm/logout</u>.<br>
        !          1443:           5. <i><u>Posted data</u></i></span><span style='font-size:11.0pt'> by 
        !          1444:           students: i.e. <i><u>resource.0.11.submission=27.11</u></i></span><span style='font-size:
        !          1445: 11.0pt'> <br>
        !          1446:           6. remote control gif files: i.e.: /res/adm/pages/v.gif </span></p>
        !          1447:         <p>So, activity.log usually grows fast, when students have more access 
        !          1448:           to the educational resources. We have brought a sample of different 
        !          1449:           types of data which are logged in activity.log after a preprocessing 
        !          1450:           phase as follows:&nbsp; </p>
        !          1451:         <p><u>144) 1010955846: studentX --&gt; /adm/navmaps</u> <br>
        !          1452:           <i>145) 1010955205: studentX --&gt; /res/msu/mmp/kap14/picts/beta_eqn.gif</i><span
        !          1453: style='font-style:normal'> <br>
        !          1454:           <u>146) 1010955685: studentX --&gt; /adm/navmaps</u> <br>
        !          1455:           <u>147) 1010955988: studentX --&gt; /adm/navmaps</u> <br>
        !          1456:           </span><span style='font-size:8.0pt'><b>148) 1010955998: studentX --&gt; 
        !          1457:           msu/mmp/kap14/kap14.sequence___5___msu/mmp/kap14/cd396.htm</b></span> 
        !          1458:           <br>
        !          1459:           <i>149) 1010955999: studentX --&gt; /res/msu/mmp/kap14/picts/velocity_eqn3.gif</i> 
        !          1460:           <br>
        !          1461:           <i>150) 1010956000: studentX --&gt; /res/msu/mmp/kap14/picts/time_eqn.gif</i><span style='font-style:normal'> 
        !          1462:           <br>
        !          1463:           151) 1010954609: studentX --&gt; /res/adm/pages/grds.gif <br>
        !          1464:           </span><i>152) 1010954611: studentX --&gt; /res/msu/mmp/wordproc.gif</i><span
        !          1465: style='font-style:normal'> <br>
        !          1466:           153) 1010954626: studentX --&gt; /res/adm/pages/i.gif <br>
        !          1467:           </span><span style='font-size:8.0pt'><b>154) 1010955717: studentX --&gt; 
        !          1468:           msu/mmp/kap14/kap14.sequence___1___msu/mmp/kap14/cd392.htm</b></span> 
        !          1469:           <br>
        !          1470:           <i>155) 1010955717: studentX --&gt; /res/msu/mmp/kap14/picts/backsoun.gif</i> 
        !          1471:           <br>
        !          1472:           <span style='font-size:8.0pt'><b>156) 1010955920: studentX --&gt; msu/mmp/kap14/kap14.sequence___3___msu/mmp/kap14/cd394.htm</b></span> 
        !          1473:           <br>
        !          1474:           <i>157) 1010955921: studentX --&gt; /res/msu/mmp/gifs/demo.gif</i><span
        !          1475: style='font-style:normal'> <br>
        !          1476:           158) 1010956113: studentX --&gt; /res/adm/pages/v.gif <br>
        !          1477:           159) 1010954629: studentX --&gt; /res/adm/pages/eval.gif <br>
        !          1478:           160) 1010954631: studentX --&gt; /res/adm/pages/back.gif <br>
        !          1479:           161) 1010954632: studentX --&gt; /res/adm/pages/b.gif <br>
        !          1480:           162) 1010954633: studentX --&gt; /res/adm/pages/r.gif <br>
        !          1481:           </span><span style='font-size:9.0pt'><b>163) 1010955754:</b></span><b> 
        !          1482:           studentX --&gt; msu/mmp/kap14/kap14.sequence___2___msu/mmp/kap14/cd393.htm</b><span
        !          1483: style='font-weight:normal'> <br>
        !          1484:           <i>164) 1010955756: studentX --&gt; /res/msu/mmp/kap14/picts/asound.jpg</i></span> 
        !          1485:           <br>
        !          1486:           <i>165) 1010955762: studentX --&gt; /res/msu/mmp/kap14/picts/sensor.jpg</i> 
        !          1487:           <br>
        !          1488:           <i>166) 1010955999: studentX --&gt; /res/msu/mmp/gifs2/example.gif</i><span
        !          1489: style='font-style:normal'> <br>
        !          1490:           173) 1010955687: studentX --&gt; /res/adm/pages/u.gif <br>
        !          1491:           174) 1010955688: studentX --&gt; /res/adm/pages/s.gif <br>
        !          1492:           175) 1010955688: studentX --&gt; /res/adm/pages/e.gif <br>
        !          1493:           </span><span style='font-size:9.0pt'><b>176) 1010956528:</b></span><b> 
        !          1494:           studentX</b><span
        !          1495: style='font-size:9.0pt'><b> --&gt; msu/mmp/kap14/kap14.sequence___33___msu/mmp/kap14/problems/cd418a.problem</b></span> 
        !          1496:           <br>
        !          1497:           <i><u>177) Sent data</u></i> <br>
        !          1498:           <span style='font-size:9.0pt'><b><u>178) 1010956536: </u></b></span><b><u>studentX</u></b><span
        !          1499: style='font-size:9.0pt'><u><b> --&gt;</b></u></span><b><u> </u></b><span
        !          1500: style='font-size:9.0pt'><u><b>msu/mmp/kap14/kap14.sequence___33___msu/mmp/kap14/problems/cd418a.problem</b></u></span> 
        !          1501:           <br>
        !          1502:           <i><u>179) Sent data HWVAL11=27.11</u></i> <br>
        !          1503:           <span style='font-size:9.0pt'><b><u>180) 1010956536:</u></b></span><b><u> 
        !          1504:           studentX</u></b><span style='font-size:9.0pt'><u><b> --&gt;</b></u></span><b><u> 
        !          1505:           </u></b><span style='font-size:9.0pt'><u><b>msu/mmp/kap14/kap14.sequence___33___msu/mmp/kap14/problems/cd418a.problem</b></u></span> 
        !          1506:           <br>
        !          1507:           <i><u>181) Sent data resource.0.11.submission=27.11</u></i> <br>
        !          1508:           <span style='font-size:9.0pt'><b><u>182) 1010956702: studentX --&gt; 
        !          1509:           msu/mmp/kap14/kap14.sequence___33___msu/mmp/kap14/problems/cd418a.problem</u></b></span> 
        !          1510:           <br>
        !          1511:           <span style='font-size:11.0pt'><i><u>183) Sent data</u></i></span><span
        !          1512: style='font-size:11.0pt'> <br>
        !          1513:           <i>184) 1010955921: studentX --&gt; /res/msu/mmp/kap14/picts/areal.gif</i></span><span
        !          1514: style='font-size:11.0pt'> <br>
        !          1515:           185) 1010955731: studentX --&gt; /res/adm/pages/n.gif <br>
        !          1516:           <br>
        !          1517:           </span></p>
        !          1518:         <p class=H5> <span
        !          1519: style='font-size:11.0pt;font-family:Symbol;font-weight:normal'>á<span
        !          1520: style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span> 
        !          1521:           <span
        !          1522: style='font-size:11.0pt;font-family:Arial'>Feature Extraction</span></p>
        !          1523:         <p class=MsoBodyText2>From these two types of student data which are stored 
        !          1524:           by the LON-CAPA system, the features may be considered for classifying 
        !          1525:           the students, are as follows: </p>
        !          1526:         <p> 1.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; 
        !          1527:           </span> Total number of correct answers. </p>
        !          1528:         <p> 2.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; 
        !          1529:           </span> Total number of tries for doing homework. </p>
        !          1530:         <p> 3.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; 
        !          1531:           </span> Time at which the student got the problem correct. Usually better 
        !          1532:           students get the homework completed earlier.</p>
        !          1533:         <p> 4.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; 
        !          1534:           </span> Reading the material before attempting homework vs. attempting 
        !          1535:           first and then read up on it.</p>
        !          1536:         <p> 5.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; 
        !          1537:           </span> Submitting a lot of attempts in a short amount of time without 
        !          1538:           looking up material in between, vs. those giving it one try, reading 
        !          1539:           up, submitting another one, etc.</p>
        !          1540:         <p> 6.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; 
        !          1541:           </span> Getting the problem right on the first try, vs. those with high 
        !          1542:           number of tries.</p>
        !          1543:         <p> 7.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; 
        !          1544:           </span> Giving up on a problem versus students continuing trying up 
        !          1545:           to the deadline.</p>
        !          1546:         <p> 8.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; 
        !          1547:           </span> Participating in the communication mechanisms, vs. those working 
        !          1548:           alone.</p>
        !          1549:         <p><br>
        !          1550:           It might be interesting to group students with time of the first log 
        !          1551:           on (beginning of assignment, middle of the week, last minute) and correlate 
        !          1552:           this with the number of tries or number of solved problems. A student 
        !          1553:           who gets all correct answers will not necessarily be in the successful 
        !          1554:           group if they took an average of 5 tries per problem, but it should 
        !          1555:           be verified from this research. </p>
        !          1556:         <p>We hope to find similar patterns of use in the data gathered from LON-CAPA, 
        !          1557:           and eventually be able to make predictions as to the most-beneficial 
        !          1558:           course of studies for each learner based on a limited number of variables 
        !          1559:           for each individual student. Based on the current state of the learner 
        !          1560:           in a learning sequence, the system could then make suggestions to the 
        !          1561:           learner as to how to proceed. </p>
        !          1562:       </form>
        !          1563:       <br
        !          1564: clear=ALL style='page-break-before:always;'>
        !          1565:       <div class=Section2> </div></div>
        !          1566:       <br clear=all>
        !          1567:       <hr align=left size=1 width="33%">
        !          1568:       <div id=ftn1> 
        !          1569:         <p class=MsoFootnoteText><a href="#_ftnref1"
        !          1570: name="_ftn1" title=""><span class=MsoFootnoteReference> [1] </span></a> If instructor 
        !          1571:           is going to port the statistics table data to Excel, he/she can select 
        !          1572:           the checkbox ÒOutput CSV formatÓ at top of the statistics table.</p>
        !          1573:       </div>
        !          1574:       <div id=ftn2> 
        !          1575:         <p class=MsoFootnoteText><a href="#_ftnref2"
        !          1576: name="_ftn2" title=""><span class=MsoFootnoteReference> [2] </span></a>&nbsp; 
        !          1577:           This name has been got from administration office of Michigan State 
        !          1578:           University for evaluating the examsÕ problem. Here we expanded this 
        !          1579:           expression to homework problems as well.</p>
        !          1580:       </div></span></span></span></span></span>
        !          1581:       
        !          1582: </body>
        !          1583: </html>

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>