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original
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137,215,897
Addition and Subtraction Integers
53,896
93,519
559,205
34,471
2012-09-12 18:55:25
2012-09-12 18:55:37.295
fill_in_1
1
1
0
0
--- - - start - 1347490525736 - "46643" - - answer - 12280 - true - "-21" - - - end
1
12,280
tutor
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MasterySection
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null
-21
0
137,215,897
0.361323
0
0.766925
0.442968
141,165,917
null
630,901
93,519
686,612
394,369
2013-01-24 09:27:37
2013-01-24 09:35:55.228
algebra
1
0
0
0
--- - - start - 1359037657748 - "1368968" - - answer - 281230 - false - 3/5x-1 - - - answer - 300164 - false - 3/5x+1 - - - answer - 498124 - true - 3/5x+5 - - - end
3
281,230
tutor
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123
LinearSection
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null
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394,369
null
3/5x-1
0
141,165,917
0.361323
0
0.766925
0.508459
141,205,198
null
531,193
93,519
686,614
322,085
2013-01-24 20:23:08
2013-01-24 20:23:39.732
algebra
1
1
0
0
--- - - start - 1359076988803 - "908511" - - answer - 31727 - true - 1/5 - - - end
1
31,727
tutor
51,003
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125
LinearSection
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322,085
null
1/5
0
141,205,198
0.361323
0
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0.762689
143,030,432
null
530,415
93,519
763,362
321,390
2013-04-03 13:05:40
2013-04-03 13:06:09.699
algebra
1
1
0
0
--- - - start - 1365008740999 - "907671" - - answer - 29653 - true - "56350000" - - - end
1
29,653
tutor
50,948
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LinearSection
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null
56350000
0
143,030,432
0.361323
0
0.766925
0.442968
143,652,029
Pythagorean Theorem
140,533
93,519
781,380
75,466
2013-04-23 10:34:21
2013-04-23 10:35:25.475
algebra
1
1
0
0
--- - - start - 1366727661381 - "809225" - - answer - 64357 - true - "15" - - - end
1
64,357
tutor
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LinearSection
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15
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143,652,029
0.361323
0
0.766925
0
145,243,181
Complementary and Supplementary Angles
139,936
93,519
798,149
75,055
2013-06-04 10:44:10
2013-06-04 10:44:52.715
algebra
1
1
0
0
--- - - start - 1370357050413 - "1710436" - - answer - 42605 - true - "169" - - - end
1
42,605
tutor
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LinearSection
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42,605
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null
169
0
145,243,181
0.361323
0
0.766925
0.442968
141,603,351
null
639,383
93,520
704,983
400,450
2013-02-06 09:34:44
2013-02-06 09:35:01.868
choose_1
1
1
0
0
--- - - start - 1360161284139 - "1420882" - - answer - 17852 - true - D. Both A and C - - - end
1
17,852
tutor
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LinearSection
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D. Both A and C
0
141,603,351
0.361323
0
0.766925
0
138,814,303
null
394,498
93,523
591,781
224,508
2012-10-25 21:18:49
2012-10-25 21:19:01.203
algebra
1
1
0
0
--- - - start - 1351214329802 - "690401" - - answer - 12196 - true - "10.25" - - - end
1
12,196
tutor
36,949
22,755
67
LinearSection
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5,450
12,196
224,508
null
10.25
0
138,814,303
0.361323
0
0.766925
0.762689
139,471,632
Volume Rectangular Prism
75,441
93,523
602,191
42,484
2012-11-18 14:20:17
2012-11-18 14:22:19.324
algebra
1
1
0
0
--- - - start - 1353266417569 - "55992" - - answer - 122317 - true - "60" - - - end
1
122,317
tutor
6,180
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MasterySection
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122,317
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null
60
0
139,471,632
0.361323
0
0.766925
0.762689
141,878,587
null
434,576
93,523
715,770
253,960
2013-02-15 08:11:46
2013-02-15 08:12:31.228
choose_1
1
1
0
0
--- - - start - 1360933906194 - "926366" - - resume - 1360933941177 - - answer - 45221 - true - D. The change of phase is taking place in an open system. - - - end
1
45,221
tutor
52,498
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LinearSection
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D. The change of phase is taking place in an open system.
0
141,878,587
0.361323
0
0.766925
0.442968
143,796,419
null
466,325
93,523
781,382
273,579
2013-04-25 08:25:04
2013-04-25 08:27:54.998
algebra
1
1
0
0
--- - - start - 1366892704562 - "810694" - - answer - 170980 - true - "161.64" - - - end
1
170,980
tutor
43,724
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LinearSection
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161.64
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0.361323
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0.442968
145,471,994
null
711,410
93,523
820,363
452,008
2013-06-17 13:03:25
2013-06-17 13:04:03.39
choose_1
1
0
0
0
--- - - start - 1371488605797 - "1795976" - - answer - 38363 - false - y < -1/2x + 1 - - - end
1
38,363
tutor
202,330
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211
RandomChildOrderSection
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68,444
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38,363
452,008
null
y < -1/2x + 1
0
145,471,994
0.361323
0
0.766925
0.952381
137,119,187
null
531,467
93,525
559,070
322,315
2012-09-10 20:17:16
2012-09-10 20:17:47.914
algebra
1
1
0
0
--- - - start - 1347322636583 - "909262" - - answer - 31868 - true - "24" - - - end
1
31,868
tutor
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LinearSection
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24
0
137,119,187
0.361323
0
0.766925
0
138,548,603
null
576,629
93,525
584,955
355,823
2012-10-20 11:21:24
2012-10-20 11:21:30.811
choose_1
1
1
0
0
--- - - start - 1350746484097 - "1025868" - - answer - 6796 - true - OKAY. - - - end
1
6,796
tutor
65,406
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LinearSection
65,406
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68,444
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6,796
355,823
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OKAY.
0
138,548,603
0.361323
0
0.766925
0.173913
138,676,948
null
537,049
93,525
587,042
326,671
2012-10-23 17:32:04
2012-10-23 17:33:23.289
algebra
1
1
0
0
--- - - start - 1351027924772 - "917371" - - answer - 79282 - true - "8" - - - end
1
79,282
tutor
51,605
22,755
60
LinearSection
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79,282
326,671
null
8
0
138,676,948
0.361323
0
0.766925
0
137,105,482
null
530,246
93,549
559,699
321,279
2012-09-10 15:30:40
2012-09-10 15:34:05.30
algebra
1
1
0
0
--- - - start - 1347305440431 - "907491" - - answer - 205297 - true - "128" - - - end
1
205,297
tutor
50,935
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LinearSection
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205,297
321,279
null
128
0
137,105,482
0.361323
0
0.766925
0.442968
140,171,090
Ordering Positive Decimals
85,699
93,549
638,563
47,181
2012-12-11 17:43:16
2012-12-11 17:43:22.317
algebra
1
1
0
0
--- - - start - 1355265796690 - "72365" - - answer - 6274 - true - "0.107" - - - end
1
6,274
tutor
6,875
22,755
100
MasterySection
6,875
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6,274
46,045
null
0.107
0
140,171,090
0.361323
0
0.766925
0
140,415,833
null
618,162
93,549
648,229
385,709
2012-12-19 13:52:49
2012-12-19 13:53:08.861
choose_1
1
1
0
0
--- - - start - 1355943169342 - "1250996" - - answer - 19857 - true - "3.5" - - - end
1
19,857
tutor
103,427
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LinearSection
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19,857
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null
3.5
0
140,415,833
0.361323
0
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0.442968
141,070,388
null
537,091
93,549
684,089
326,702
2013-01-22 09:16:19
2013-01-22 09:16:25.634
choose_1
1
1
0
0
--- - - start - 1358864179377 - "917435" - - answer - 6632 - true - B. removed - - - end
1
6,632
tutor
51,610
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LinearSection
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6,632
326,702
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B. removed
0
141,070,388
0.805195
0
0.766925
0
143,741,407
null
679,937
93,549
783,232
429,139
2013-04-24 13:04:41
2013-04-24 13:04:46.569
algebra
1
1
0
0
--- - - start - 1366823081904 - "1672297" - - answer - 5519 - true - "13" - - - end
1
5,519
tutor
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LinearSection
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429,139
null
13
0
143,741,407
0.361323
0
0.766925
0.912281
144,998,349
Least Common Multiple
86,221
93,549
780,036
47,620
2013-05-21 08:44:30
2013-05-21 08:47:49.999
algebra
1
1
0
0
--- - - start - 1369140270392 - "1662685" - - answer - 199888 - true - "21" - - - end
1
199,888
tutor
182,438
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LinearSection
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199,888
46,083
null
21
0
144,998,349
0.361323
0
0.766925
0.615385
137,261,913
null
531,592
93,566
560,517
322,419
2012-09-13 18:40:58
2012-09-13 18:41:01.413
algebra
1
1
0
0
--- - - start - 1347576058377 - "909378" - - answer - 3402 - true - "87" - - - end
1
3,402
tutor
51,077
22,755
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LinearSection
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68,444
5,450
3,402
322,419
null
87
0
137,261,913
0.361323
0
0.766925
0
140,411,390
null
617,360
93,566
646,334
385,303
2012-12-19 12:16:59
2012-12-19 12:17:09.151
choose_1
1
1
0
0
--- - - start - 1355937419232 - "1244845" - - answer - 10148 - true - Decrease - - - end
1
10,148
tutor
102,257
22,755
107
LinearSection
102,257
null
68,444
5,450
10,148
385,303
null
Decrease
0
140,411,390
0.361323
0.978947
0.766925
0
141,643,545
null
639,747
93,566
705,204
400,756
2013-02-06 21:33:01
2013-02-06 21:33:35.571
choose_1
1
0
0
0
--- - - start - 1360204381469 - "1423869" - - answer - 29006 - false - "No" - - - answer - 34501 - true - "Yes" - - - end
2
29,006
tutor
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LinearSection
139,886
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5,450
29,006
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No
0
141,643,545
0.361323
0
0.766925
0.364341
141,890,796
null
43,677
93,566
715,771
30,358
2013-02-15 10:17:17
2013-02-15 10:17:52.703
choose_1
1
0
0
0
--- - - start - 1360941437688 - "926391" - - answer - 35697 - false - A. 5 s - - - end
1
35,697
tutor
52,498
18,314
20
LinearSection
52,498
null
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35,697
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A. 5 s
0
141,890,796
0.361323
0
0.766925
0
143,056,345
null
530,416
93,566
763,362
321,391
2013-04-04 06:57:08
2013-04-04 06:58:31.215
algebra
1
1
0
0
--- - - start - 1365073028396 - "907672" - - answer - 82978 - true - 9.2x10^8 - - - end
1
82,978
tutor
50,948
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174
LinearSection
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5,450
82,978
321,391
null
9.2x10^8
0
143,056,345
0.361323
0
0.766925
0.22695
136,985,428
null
531,410
93,567
558,673
322,270
2012-09-06 18:29:38
2012-09-06 18:30:10.89
algebra
1
1
0
0
--- - - start - 1346970578026 - "909216" - - answer - 32880 - true - "8" - - - end
1
32,880
tutor
51,064
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LinearSection
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32,880
322,270
null
8
0
136,985,428
0.361323
0
0.336529
0.442968
138,554,359
null
576,619
93,567
584,955
355,813
2012-10-21 11:32:11
2012-10-21 11:33:06.551
algebra
1
1
0
0
--- - - start - 1350833531265 - "1025830" - - answer - 55532 - true - -4x - - - end
1
55,532
tutor
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LinearSection
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55,532
355,813
null
-4x
0
138,554,359
0.361323
0
0.766925
0
138,976,842
Write Linear Equation from Situation
49,739
93,567
595,091
32,326
2012-11-01 15:05:06
2012-11-01 15:05:24.80
algebra
1
1
0
0
--- - - start - 1351796706807 - "44310" - - answer - 18787 - true - 10w+30 - - - end
1
18,787
tutor
5,927
22,755
68
MasterySection
5,927
323
68,444
5,450
18,787
30,416
null
10w+30
0
138,976,842
0.361323
0
0.766925
0
139,172,558
null
589,626
93,567
604,118
365,156
2012-11-07 17:52:10
2012-11-07 17:52:28.396
algebra
1
1
0
0
--- - - start - 1352328730290 - "1090573" - - answer - 18389 - true - "6" - - - end
1
18,389
tutor
75,573
22,755
79
LinearSection
75,573
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68,444
5,450
18,389
365,156
null
6
0
139,172,558
0.361323
0
0.766925
0
144,643,262
null
535,576
93,567
798,068
325,537
2013-05-09 09:46:24
2013-05-09 09:46:40.089
algebra
1
1
0
0
--- - - start - 1368107184762 - "915523" - - answer - 16030 - true - "-3" - - - end
1
16,030
tutor
51,386
22,755
205
LinearSection
51,386
null
68,444
5,450
16,030
325,537
null
-3
0
144,643,262
0.361323
0
0.766925
0
141,898,832
null
536,737
93,568
716,632
326,432
2013-02-15 12:00:28
2013-02-15 12:00:44.102
choose_1
1
1
0
0
--- - - start - 1360947628376 - "1464903" - - answer - 16098 - true - D - - - end
1
16,098
tutor
147,760
22,556
6
LinearSection
51,580
null
71,764
5,450
16,098
326,432
null
D
0
141,898,832
0.361323
0
0.336529
0.762689
136,923,039
null
537,448
93,571
558,652
326,990
2012-09-05 12:11:40
2012-09-05 12:15:53.141
algebra
1
0
0
0
--- - - start - 1346861500945 - "918006" - - answer - 4119 - false - "4" - - - answer - 11871 - false - "3.67" - - - answer - 164437 - false - "-3.67" - - - answer - 167736 - false - "-4" - - - answer - 253124 - true - "1" - - - end
5
4,119
tutor
51,580
22,556
1
LinearSection
51,580
null
71,764
5,450
4,119
326,990
null
4
0
136,923,039
0.627646
0.189313
0.680846
0.088594
144,772,596
null
684,662
93,572
797,425
432,771
2013-05-10 14:06:40
2013-05-10 14:06:53.356
algebra
1
1
0
0
--- - - start - 1368209200600 - "1708557" - - answer - 13237 - true - "-7" - - - end
1
13,237
tutor
190,650
22,755
204
LinearSection
190,650
null
68,444
5,450
13,237
432,771
null
-7
0
144,772,596
0.361323
0
0.766925
0.697987
144,772,724
null
684,668
93,572
797,425
432,774
2013-05-10 14:08:46
2013-05-10 14:08:53.896
algebra
1
1
0
0
--- - - start - 1368209326944 - "1708560" - - answer - 7837 - true - "5" - - - end
1
7,837
tutor
190,650
22,755
204
LinearSection
190,650
null
68,444
5,450
7,837
432,774
null
5
0
144,772,724
0.361323
0
0.766925
0.442968
139,494,329
Equation Solving More Than Two Steps
108,293
93,574
615,274
57,498
2012-11-19 12:59:58
2012-11-19 13:03:48.491
algebra
1
0
0
0
--- - - start - 1353347998205 - "103702" - - scaffold - 212144 - - end
0
212,144
tutor
5,969
22,755
86
MasterySection
5,969
312
68,444
5,450
212,144
55,836
null
null
2
139,494,329
0.361323
0
0.766925
0.442968
140,068,770
null
474,620
93,574
633,168
279,424
2012-12-07 10:07:54
2012-12-07 10:07:57.079
choose_1
1
1
0
0
--- - - start - 1354892874534 - "838736" - - answer - 3077 - true - Function - - - end
1
3,077
tutor
46,503
22,755
96
LinearSection
46,503
null
68,444
5,450
3,077
279,424
null
Function
0
140,068,770
0.361323
0
0.766925
0
144,769,041
null
535,598
93,574
798,068
325,539
2013-05-10 13:27:03
2013-05-10 13:27:10.866
algebra
1
1
0
0
--- - - start - 1368206823012 - "915525" - - answer - 7816 - true - "0" - - - end
1
7,816
tutor
51,386
22,755
205
LinearSection
51,386
null
68,444
5,450
7,816
325,539
null
0
0
144,769,041
0.361323
0
0.766925
0.173913
140,339,048
null
537,459
93,575
644,347
326,983
2012-12-17 14:38:46
2012-12-17 14:38:53.986
algebra
1
1
0
0
--- - - start - 1355773126980 - "917999" - - answer - 7976 - true - "6" - - - end
1
7,976
tutor
51,710
22,755
106
LinearSection
51,710
null
68,444
5,450
7,976
326,983
null
6
0
140,339,048
0.361323
0
0.766925
0
141,587,919
null
637,662
93,575
702,997
399,170
2013-02-05 19:34:18
2013-02-05 19:37:12.746
algebra
1
0
0
0
--- - - start - 1360110858077 - "1410455" - - answer - 174743 - false - 6x+2.5 - - - end
1
174,743
tutor
137,374
22,755
140
LinearSection
137,374
null
68,444
5,450
174,743
399,170
null
6x+2.5
0
141,587,919
0.361323
0
0.766925
0.442968
143,044,600
null
530,118
93,575
763,363
321,190
2013-04-03 17:52:57
2013-04-03 17:55:20.442
algebra
1
0
1
1
--- - - start - 1365025977069 - "907397" - - answer - 21784 - false - 5x10^4 - - - answer - 23101 - false - 5x10^5 - - - answer - 24185 - false - 5x10^3 - - - answer - 27925 - false - 5x10^-4 - - - answer - 29377 - false - 5x10^-5 - - - answer - 30727 - false - 5x...
13
21,784
tutor
50,930
22,755
175
LinearSection
50,930
null
68,444
5,450
21,784
321,190
null
5x10^4
0
143,044,600
0.361323
0.069196
0.766925
0.427538
137,649,351
Ordering Positive Decimals
52,834
93,578
565,630
33,709
2012-09-25 16:10:36
2012-09-25 16:10:43.397
algebra
1
1
0
0
--- - - start - 1348603836935 - "45844" - - answer - 7389 - true - "7.7" - - - end
1
7,389
tutor
5,954
22,755
32
MasterySection
5,954
49
68,444
5,450
7,389
29,876
null
7.7
0
137,649,351
0.361323
0
0.766925
0.442968
139,989,124
Equation Solving Two or Fewer Steps
97,709
93,578
595,095
55,606
2012-12-05 15:07:49
2012-12-05 15:08:13.334
choose_1
0
0
0
0
--- - - start - 1354738069512 - "67911" - - answer - 18177 - false - A) - - - answer - 24326 - true - C) - - - end
2
18,177
tutor
5,968
22,755
69
MasterySection
5,968
311
68,444
5,450
18,177
55,508
null
A)
0
139,989,124
0.361323
0
0.766925
0.730338
143,872,663
null
680,567
93,579
784,713
429,557
2013-04-26 08:44:56
2013-04-26 08:46:35.253
choose_1
1
1
0
0
--- - - start - 1366980296507 - "1675836" - - resume - 1366980331412 - - answer - 99234 - true - FGHJK - - - end
1
99,234
tutor
184,862
22,755
187
LinearSection
184,862
null
68,444
5,450
99,234
429,557
null
FGHJK
0
143,872,663
0.361323
0
0.766925
0.697987
138,757,746
null
581,099
93,580
589,070
358,443
2012-10-25 01:48:40
2012-10-25 01:49:15.923
algebra
1
1
0
0
--- - - start - 1351144120639 - "1042909" - - answer - 35910 - true - -6d+18 - - - end
1
35,910
tutor
68,318
22,755
66
LinearSection
68,318
null
68,444
5,450
35,910
358,443
null
-6d+18
0
138,757,746
0.361323
0
0.766925
0.22695
138,757,773
null
576,630
93,580
584,955
355,824
2012-10-25 02:17:27
2012-10-25 02:19:43.688
algebra
1
1
0
0
--- - - start - 1351145847339 - "1025947" - - answer - 136677 - true - 12x+-10 - - - end
1
136,677
tutor
65,406
22,755
58
LinearSection
65,406
null
68,444
5,450
136,677
355,824
null
12x+-10
0
138,757,773
0.361323
0
0.766925
0
140,404,163
null
537,466
93,580
642,706
326,987
2012-12-19 09:47:30
2012-12-19 09:47:35.138
algebra
1
1
0
0
--- - - start - 1355928450802 - "918003" - - answer - 5134 - true - "-20" - - - end
1
5,134
tutor
51,710
22,755
103
LinearSection
51,710
null
68,444
5,450
5,134
326,987
null
-20
0
140,404,163
0.361323
0
0.766925
0
139,123,329
Equation Solving Two or Fewer Steps
97,659
93,581
595,095
55,594
2012-11-06 15:30:53
2012-11-06 15:32:06.693
algebra
1
0
0
0
--- - - start - 1352233853598 - "94328" - - answer - 11102 - false - -15/6 - - - answer - 39564 - false - 6/-15 - - - scaffold - 41025 - - end
2
41,025
tutor
5,968
22,755
69
MasterySection
5,968
311
68,444
5,450
41,025
55,509
null
-15/6
2
139,123,329
0.514613
0
0.766925
0.370962
140,987,162
Write Linear Equation from Slope and y-intercept
420,646
93,581
679,210
243,333
2013-01-17 15:15:37
2013-01-17 15:15:59.157
algebra
1
1
0
0
--- - - start - 1358453737786 - "732188" - - answer - 22154 - true - "2" - - - end
1
22,154
tutor
38,845
22,755
120
LinearSection
38,845
326
68,444
5,450
22,154
243,333
null
2
0
140,987,162
0.361323
0
0.766925
0.442968
144,298,086
null
683,538
93,581
793,125
431,941
2013-05-03 08:20:41
2013-05-03 08:23:40.768
choose_1
1
1
0
0
--- - - start - 1367583641612 - "1695691" - - answer - 179761 - true - C - - - end
1
179,761
tutor
188,477
22,755
202
LinearSection
188,477
null
68,444
5,450
179,761
431,941
null
C
0
144,298,086
0.361323
0
0.766925
0.22695
145,434,626
null
711,412
93,581
820,363
452,010
2013-06-13 14:41:24
2013-06-13 14:42:21.909
choose_1
1
0
0
0
--- - - start - 1371148884639 - "1795978" - - answer - 57903 - false - b - - - end
1
57,903
tutor
202,330
22,755
211
RandomChildOrderSection
202,330
null
68,444
5,450
57,903
452,010
null
b
0
145,434,626
0.361323
0
0.766925
0.912281
137,819,155
null
560,532
93,584
567,832
343,902
2012-09-30 20:39:42
2012-09-30 20:40:27.427
algebra
1
1
0
0
--- - - start - 1349051982323 - "966999" - - answer - 45375 - true - "-1" - - - end
1
45,375
tutor
56,482
22,755
38
LinearSection
56,482
null
68,444
5,450
45,375
343,902
null
-1
0
137,819,155
0.775
0
0.766925
0
143,106,208
null
671,514
93,599
765,854
423,619
2013-04-05 08:23:30
2013-04-05 08:24:00.43
choose_1
1
1
0
0
--- - - start - 1365164610333 - "1616283" - - answer - 30427 - true - The Moon's orbit is at a 5 degree tilt relative to the Earth's orbit. - - - end
1
30,427
tutor
59,495
18,314
23
LinearSection
49,105
null
108,810
5,450
30,427
423,619
null
The Moon's orbit is at a 5 degree tilt relative to the Earth's orbit.
0
143,106,208
0.361323
0
0.766925
0
140,410,703
null
617,809
93,608
648,334
381,328
2012-12-19 11:59:20
2012-12-19 11:59:33.356
choose_n
1
1
0
0
--- - - start - 1355936360727 - "1247884" - - answer - 13351 - true - It is made of two of the same type of atoms - - 1056123 - - end
1
13,351
tutor
102,865
18,314
4
LinearSection
102,865
null
108,810
5,450
13,351
381,328
null
It is made of two of the same type of atoms
0
140,410,703
0.361323
0
0.766925
0
140,451,949
null
474,619
93,608
633,168
279,423
2012-12-20 18:53:13
2012-12-20 18:53:17.92
choose_1
1
1
0
0
--- - - start - 1356047593268 - "838735" - - answer - 4910 - true - Not a Function - - - end
1
4,910
tutor
46,503
22,755
96
LinearSection
46,503
null
68,444
5,450
4,910
279,423
null
Not a Function
0
140,451,949
0.361323
0
0.766925
0
141,900,015
null
537,646
93,654
716,632
327,092
2013-02-15 12:17:32
2013-02-15 12:17:37.376
choose_1
1
1
0
0
--- - - start - 1360948652808 - "1464946" - - answer - 5370 - true - f - - - end
1
5,370
tutor
147,760
22,556
6
LinearSection
51,580
null
71,764
5,450
5,370
327,092
null
f
0
141,900,015
0.805195
0
0.766925
0
140,231,969
null
72,757
93,655
641,819
41,511
2012-12-13 10:09:07
2012-12-13 10:09:21.138
choose_1
1
0
0
0
--- - - start - 1355411347293 - "926370" - - answer - 14133 - false - C. 980 km/h W - - - end
1
14,133
tutor
52,498
18,314
8
LinearSection
52,498
null
108,810
5,450
14,133
41,511
null
C. 980 km/h W
0
140,231,969
0.361323
0
0.766925
0
140,402,739
null
617,643
93,655
648,326
385,413
2012-12-19 09:24:53
2012-12-19 09:24:57.711
choose_n
1
1
0
0
--- - - start - 1355927093449 - "1247886" - - answer - 4709 - true - Gas - - 1055821 - - end
1
4,709
tutor
102,865
18,314
3
LinearSection
102,865
null
108,810
5,450
4,709
385,413
null
Gas
0
140,402,739
0.361323
0
0.766925
0
144,254,809
null
683,271
93,655
791,966
431,714
2013-05-02 14:02:08
2013-05-02 14:02:44.779
choose_1
1
0
0
0
--- - - start - 1367517728952 - "1693898" - - answer - 32862 - false - D - - - answer - 34814 - false - C - - - answer - 36774 - true - B - - - end
3
32,862
tutor
188,020
22,755
201
LinearSection
188,020
null
68,444
5,450
32,862
431,714
null
D
0
144,254,809
0.361323
0
0.766925
0
145,196,674
null
689,881
93,655
813,537
436,698
2013-05-31 13:26:52
2013-05-31 13:27:33.74
choose_1
1
1
0
0
--- - - start - 1370021212347 - "1730357" - - answer - 41734 - true - Contour Interval - - - end
1
41,734
tutor
123,849
18,314
37
RandomChildOrderSection
123,849
null
108,810
5,450
41,734
436,698
null
Contour Interval
0
145,196,674
0.361323
0
0.766925
0.22695
139,574,665
Equation Solving More Than Two Steps
108,278
93,657
615,274
57,495
2012-11-25 19:07:13
2012-11-25 19:07:30.028
algebra
1
1
0
0
--- - - start - 1353888433398 - "103699" - - answer - 17018 - true - 2/88 - - - end
1
17,018
tutor
5,969
22,755
86
MasterySection
5,969
312
68,444
5,450
17,018
55,836
null
2/88
0
139,574,665
0.361323
0
0.766925
0.22695
141,702,599
null
639,745
93,657
708,333
400,754
2013-02-09 15:30:02
2013-02-09 15:30:44.053
choose_1
1
1
0
0
--- - - start - 1360441802057 - "1423867" - - answer - 42036 - true - "No" - - - end
1
42,036
tutor
139,886
22,755
146
LinearSection
139,886
null
68,444
5,450
42,036
400,754
null
No
0
141,702,599
0.361323
0
0.766925
0
142,632,234
Proportion
87,326
93,657
741,381
48,695
2013-03-19 13:42:33
2013-03-19 13:42:51.821
choose_1
1
1
0
0
--- - - start - 1363714953093 - "1544776" - - answer - 18815 - true - B - - - end
1
18,815
tutor
162,542
22,755
0
LinearSection
162,542
79
68,444
5,450
18,815
34,871
null
B
0
142,632,234
0.361323
0
0.766925
0
143,549,370
Point Plotting
114,113
93,657
778,708
59,882
2013-04-21 17:54:46
2013-04-21 17:55:00.352
choose_1
1
0
0
0
--- - - start - 1366581286165 - "115350" - - answer - 9423 - false - Quadrant I - - - answer - 14343 - true - Quadrant II - - - end
2
9,423
tutor
7,922
22,755
0
MasterySection
7,922
103
68,444
5,450
9,423
58,277
null
Quadrant I
0
143,549,370
0.568162
0.5
0.766925
0.221484
144,536,664
Point Plotting
114,073
93,657
796,804
59,842
2013-05-07 21:02:16
2013-05-07 21:02:25.517
choose_1
1
1
0
0
--- - - start - 1367974936543 - "115312" - - answer - 9507 - true - Quadrant II - - - end
1
9,507
tutor
7,922
22,755
0
MasterySection
7,922
103
68,444
5,450
9,507
56,528
null
Quadrant II
0
144,536,664
0.361323
1
0.766925
0
137,893,725
null
129,161
93,670
568,729
69,476
2012-10-02 15:11:58
2012-10-02 15:12:47.712
algebra
1
0
0
0
--- - - start - 1349205118890 - "170781" - - answer - 26269 - false - "82" - - - answer - 49707 - true - "30" - - - end
2
26,269
tutor
8,946
22,755
43
MasterySection
8,946
94
68,444
5,450
26,269
62,795
null
82
0
137,893,725
0.361323
0
0.766925
0.308441
143,138,459
Write Linear Equation from Graph
423,056
93,670
676,792
244,812
2013-04-05 13:45:36
2013-04-05 13:48:37.009
algebra
1
1
0
0
--- - - start - 1365183936493 - "735462" - - resume - 1365184064704 - - answer - 180798 - true - (-1/10)x+-3 - - - end
1
180,798
tutor
39,162
22,755
115
MasterySection
39,162
325
68,444
5,450
180,798
30,988
null
(-1/10)x+-3
0
143,138,459
0.361323
0
0.766925
0.442968
143,647,527
Pythagorean Theorem
140,524
93,670
781,380
75,463
2013-04-23 09:42:11
2013-04-23 09:44:57.121
algebra
1
1
0
0
--- - - start - 1366724531747 - "809223" - - answer - 165899 - true - "17" - - - end
1
165,899
tutor
43,668
22,755
179
LinearSection
43,668
27
68,444
5,450
165,899
30,006
null
17
0
143,647,527
0.361323
0
0.766925
0
136,858,747
Addition and Subtraction Fractions
86,319
93,671
557,837
47,718
2012-09-03 17:14:38
2012-09-03 17:16:51.857
algebra
1
0
0
0
--- - - start - 1346706878780 - "73267" - - answer - 17329 - false - 4/16 - - - answer - 133854 - true - 30/63 - - - end
2
17,329
tutor
6,910
22,755
2
MasterySection
6,910
280
68,444
5,450
17,329
46,265
null
4/16
0
136,858,747
0.361323
0
0.766925
0.442968
137,644,368
null
531,985
93,671
565,459
322,758
2012-09-25 14:41:45
2012-09-25 14:42:20.902
algebra
1
1
0
0
--- - - start - 1348598505297 - "910048" - - answer - 35900 - true - "60" - - - end
1
35,900
tutor
51,122
22,755
29
LinearSection
51,122
null
68,444
5,450
35,900
322,758
null
60
0
137,644,368
0.361323
0
0.766925
0.442968
138,665,271
null
537,049
93,671
587,042
326,671
2012-10-23 14:44:38
2012-10-23 14:45:34.155
algebra
1
1
0
0
--- - - start - 1351017878737 - "917371" - - answer - 56148 - true - "8" - - - end
1
56,148
tutor
51,605
22,755
60
LinearSection
51,605
null
68,444
5,450
56,148
326,671
null
8
0
138,665,271
0.361323
0.984127
0.766925
0
141,203,905
null
631,999
93,671
688,475
395,168
2013-01-24 19:51:27
2013-01-24 19:51:33.629
algebra
1
1
0
0
--- - - start - 1359075087594 - "1376514" - - answer - 6619 - true - 1/2 - - - end
1
6,619
tutor
130,217
22,755
126
LinearSection
130,217
null
68,444
5,450
6,619
395,168
null
1/2
0
141,203,905
0.361323
0
0.766925
0
141,595,399
Equation Solving More Than Two Steps
108,263
93,671
629,860
57,492
2013-02-06 08:26:01
2013-02-06 08:27:04.102
algebra
1
0
0
0
--- - - start - 1360157161360 - "103691" - - answer - 57556 - false - -12/5 - - - scaffold - 57572 - - end
1
57,556
tutor
5,969
22,755
1,258
MasterySection
5,969
312
68,444
5,450
57,556
55,836
null
-12/5
0
141,595,399
0.361323
0
0.766925
0.730338
140,321,669
null
537,459
93,673
642,706
326,983
2012-12-17 08:09:00
2012-12-17 08:09:07.777
algebra
1
1
0
0
--- - - start - 1355749740649 - "917999" - - answer - 7772 - true - "+6" - - - end
1
7,772
tutor
51,710
22,755
103
LinearSection
51,710
null
68,444
5,450
7,772
326,983
null
+6
0
140,321,669
0.361323
0
0.766925
0
136,920,489
null
536,738
93,674
558,652
326,433
2012-09-05 11:41:29
2012-09-05 11:41:45.238
choose_1
1
0
0
0
--- - - start - 1346859689710 - "916921" - - answer - 3782 - false - D - - - answer - 12818 - false - A - - - answer - 14169 - false - B - - - answer - 16223 - true - C - - - end
4
3,782
tutor
51,580
22,556
1
LinearSection
51,580
null
71,764
5,450
3,782
326,433
null
D
0
136,920,489
0.361323
0.5
0.336529
0.486072
136,916,530
null
43,671
93,678
558,751
30,353
2012-09-05 10:33:06
2012-09-05 10:34:48.371
choose_1
1
1
0
0
--- - - start - 1346855586730 - "926380" - - answer - 102362 - true - "A. 0\xC2\xB0C" - - - end
1
102,362
tutor
52,498
18,314
7
LinearSection
52,498
null
108,810
5,450
102,362
30,353
null
A. 0°C
0
136,916,530
0.361323
0
0.766925
0
140,346,692
null
536,810
93,678
644,346
326,454
2012-12-17 16:43:20
2012-12-17 16:43:23.473
algebra
1
1
0
0
--- - - start - 1355780600243 - "916944" - - answer - 3458 - true - "1" - - - end
1
3,458
tutor
51,589
22,755
105
LinearSection
51,589
null
68,444
5,450
3,458
326,454
null
1
0
140,346,692
0.361323
0
0.766925
0
141,071,539
null
537,408
93,678
684,089
326,950
2013-01-22 09:22:40
2013-01-22 09:22:56.813
choose_1
1
1
0
0
--- - - start - 1358864560640 - "917956" - - answer - 16811 - true - B. atomic number - - - end
1
16,811
tutor
51,610
18,314
10
LinearSection
51,610
null
108,810
5,450
16,811
326,950
null
B. atomic number
0
141,071,539
0.361323
0
0.766925
0.22695
137,737,009
Equation Solving Two or Fewer Steps
87,482
93,680
565,626
48,802
2012-09-27 15:00:53
2012-09-27 15:01:15.79
algebra
1
1
0
0
--- - - start - 1348772453829 - "74297" - - answer - 22782 - true - "-26" - - - end
1
22,782
tutor
6,922
22,755
31
MasterySection
6,922
311
68,444
5,450
22,782
46,276
null
-26
0
137,737,009
0.361323
0
0.766925
0.442968
140,882,653
Median
91,126
93,680
676,387
51,802
2013-01-13 19:51:52
2013-01-13 19:52:43.497
algebra
1
1
0
0
--- - - start - 1358124712458 - "1339254" - - answer - 51493 - true - "37" - - - end
1
51,493
tutor
122,868
22,755
115
LinearSection
122,868
13
68,444
5,450
51,493
50,237
null
37
0
140,882,653
0.361323
0
0.766925
0.285714
142,656,504
null
662,411
93,680
750,586
417,104
2013-03-20 14:47:53
2013-03-20 14:48:11.646
choose_1
1
1
0
0
--- - - start - 1363805273222 - "1574494" - - answer - 18622 - true - OK - - - end
1
18,622
tutor
167,285
22,755
172
LinearSection
167,285
null
68,444
5,450
18,622
417,104
null
OK
0
142,656,504
0.361323
0
0.766925
0.442968
136,988,222
null
531,410
93,681
558,673
322,270
2012-09-06 20:03:05
2012-09-06 20:07:31.94
algebra
1
1
0
0
--- - - start - 1346976185241 - "909216" - - answer - 266935 - true - "8" - - - end
1
266,935
tutor
51,064
22,755
6
LinearSection
51,064
null
68,444
5,450
266,935
322,270
null
8
0
136,988,222
0.361323
0
0.766925
0
144,218,454
null
683,255
93,681
791,966
431,698
2013-05-02 08:29:59
2013-05-02 08:30:10.177
choose_1
1
1
0
0
--- - - start - 1367497799411 - "1693856" - - answer - 11145 - true - C - - - end
1
11,145
tutor
188,020
22,755
201
LinearSection
188,020
null
68,444
5,450
11,145
431,698
null
C
0
144,218,454
0.361323
0
0.766925
0.22695
137,248,342
null
534,281
93,682
558,524
324,727
2012-09-13 13:51:38
2012-09-13 13:52:20.221
choose_1
1
1
0
0
--- - - start - 1347558698989 - "913892" - - answer - 42211 - true - C - - - end
1
42,211
tutor
51,283
22,755
5
RandomChildOrderSection
51,283
null
68,444
5,450
42,211
324,727
null
C
0
137,248,342
0.361323
0
0.766925
0.285714
138,122,659
Perimeter of a Polygon
171,698
93,684
573,230
92,257
2012-10-09 19:42:59
2012-10-09 19:43:49.429
algebra
1
0
0
0
--- - - start - 1349826179220 - "284158" - - answer - 44356 - false - "46" - - - scaffold - 44390 - - end
1
44,356
tutor
10,766
22,755
3,313
MasterySection
10,766
42
68,444
5,450
44,356
76,089
null
46
0
138,122,659
0.361323
0
0.766925
0
138,411,390
null
574,199
93,684
582,089
353,964
2012-10-17 07:09:59
2012-10-17 07:10:02.50
choose_1
1
1
0
0
--- - - start - 1350472199476 - "1015101" - - answer - 3498 - true - Okay - - - end
1
3,498
tutor
63,540
22,755
56
LinearSection
63,540
null
68,444
5,450
3,498
353,964
null
Okay
0
138,411,390
0.361323
0
0.766925
0
140,220,900
null
476,069
93,684
641,299
280,262
2012-12-13 07:01:11
2012-12-13 07:01:25.285
choose_1
1
1
0
0
--- - - start - 1355400071312 - "845425" - - answer - 14282 - true - Linear - - - end
1
14,282
tutor
47,134
22,755
102
LinearSection
47,134
null
68,444
5,450
14,282
280,262
null
Linear
0
140,220,900
0.361323
0.978947
0.766925
0.285714
140,402,964
null
617,644
93,684
648,326
385,413
2012-12-19 09:28:34
2012-12-19 09:28:40.68
choose_n
1
1
0
0
--- - - start - 1355927314915 - "1247886" - - answer - 6677 - true - the molecules will fill up whatever space they are in - - 1055825 - - end
1
6,677
tutor
102,865
18,314
3
LinearSection
102,865
null
108,810
5,450
6,677
385,413
null
the molecules will fill up whatever space they are in
0
140,402,964
0.361323
0
0.766925
0
143,339,709
null
57,382
93,684
771,125
36,731
2013-04-11 12:59:52
2013-04-11 13:00:31.714
choose_1
1
0
0
0
--- - - start - 1365699592684 - "920231" - - answer - 35645 - false - D. Volcanoes form where earthquakes are least likely to occur. - - - answer - 36924 - false - B. Volcanoes form below the surface of tectonic plates. - - - answer - 38412 - false - A. Volcanoes form in the middle of a tec...
4
35,645
tutor
51,918
18,314
28
LinearSection
51,918
null
108,810
5,450
35,645
36,731
null
D. Volcanoes form where earthquakes are least likely to occur.
0
143,339,709
0.361323
0.75
0.766925
0.16748
138,333,837
Equation Solving Two or Fewer Steps
88,329
93,703
580,539
49,637
2012-10-15 15:46:44
2012-10-15 15:51:06.833
algebra
1
1
0
0
--- - - start - 1350330404053 - "1015938" - - answer - 262829 - true - "-2" - - - end
1
262,829
tutor
63,636
22,755
3,034
LinearSection
63,636
311
68,444
5,450
262,829
30,833
null
-2
0
138,333,837
0.361323
0
0.766925
0.442968
139,139,376
Volume Rectangular Prism
75,464
93,703
602,191
42,507
2012-11-07 08:35:10
2012-11-07 08:35:23.671
algebra
1
1
0
0
--- - - start - 1352295310173 - "56015" - - answer - 13669 - true - "200" - - - end
1
13,669
tutor
6,180
22,755
75
MasterySection
6,180
307
68,444
5,450
13,669
31,688
null
200
0
139,139,376
0.361323
0
0.766925
0
139,358,513
Equation Solving Two or Fewer Steps
87,836
93,703
610,590
49,156
2012-11-14 13:42:52
2012-11-14 13:43:29.801
algebra
1
1
0
0
--- - - start - 1352918572295 - "1119612" - - answer - 37791 - true - "-32" - - - end
1
37,791
tutor
80,589
22,755
1,921
LinearSection
80,589
311
68,444
5,450
37,791
46,278
null
-32
0
139,358,513
0.361323
0
0.766925
0
141,088,907
Least Common Multiple
86,187
93,703
665,133
47,586
2013-01-22 13:15:17
2013-01-22 13:17:26.234
algebra
1
1
0
0
--- - - start - 1358878517284 - "85413" - - answer - 129218 - true - "9" - - - end
1
129,218
tutor
7,179
22,755
111
MasterySection
7,179
65
68,444
5,450
129,218
46,083
null
9
0
141,088,907
0.361323
0
0.766925
0.762689
143,131,943
null
668,501
93,703
768,075
421,727
2013-04-05 12:35:20
2013-04-05 12:35:34.332
choose_1
1
0
0
0
--- - - start - 1365179720345 - "1603362" - - answer - 14318 - false - 29 days - - - end
1
14,318
tutor
59,495
18,314
26
LinearSection
49,105
null
108,810
5,450
14,318
421,727
null
29 days
0
143,131,943
0.361323
0
0.766925
0.22695
144,911,410
null
483,608
93,703
802,277
285,112
2013-05-16 09:42:50
2013-05-16 09:42:57.68
algebra
1
1
0
0
--- - - start - 1368711770199 - "853560" - - answer - 7614 - true - "-2.2" - - - end
1
7,614
tutor
47,702
22,755
207
LinearSection
47,702
null
68,444
5,450
7,614
285,112
null
-2.2
0
144,911,410
0.361323
0
0.766925
0.442968
145,398,635
D.4.8-understanding-concept-of-probabilities
75,231
93,703
815,207
42,309
2013-06-11 19:32:02
2013-06-11 19:32:27.914
fill_in_1
1
1
0
0
--- - - start - 1370993522928 - "1776330" - - answer - 25810 - true - "10" - - - end
1
25,810
tutor
199,622
22,755
0
LinearSection
199,622
110
68,444
5,450
25,810
30,509
null
10
0
145,398,635
0.361323
0
0.766925
0.442968
139,008,914
Equation Solving Two or Fewer Steps
88,386
93,709
597,814
49,690
2012-11-02 09:42:20
2012-11-02 09:44:21.001
algebra
1
0
1
3
--- - - start - 1351863740593 - "75345" - - answer - 72113 - false - "8" - - - hint - 73729 - - answer - 103521 - false - "4" - - - hint - 105581 - - hint - 106215 - - answer - 120984 - true - "18" - - - end
3
72,113
tutor
6,943
22,557
16
MasterySection
6,943
311
71,764
5,450
72,113
46,285
null
8
0
139,008,914
0.361323
0
0.766925
0.259309
142,163,614
null
536,791
93,776
716,632
326,472
2013-03-01 12:37:26
2013-03-01 12:37:31.609
choose_1
1
1
0
0
--- - - start - 1362159446837 - "1464909" - - answer - 5605 - true - D - - - end
1
5,605
tutor
147,760
22,556
6
LinearSection
51,580
null
71,764
5,450
5,605
326,472
null
D
0
142,163,614
0.361323
0
0.766925
0
137,892,717
null
537,186
93,780
568,333
326,749
2012-10-02 15:01:21
2012-10-02 15:01:32.058
algebra
1
1
0
0
--- - - start - 1349204481616 - "917497" - - answer - 11049 - true - 3/4*x - - - end
1
11,049
tutor
51,615
22,755
41
LinearSection
51,615
null
68,444
5,450
11,049
326,749
null
3/4*x
0
137,892,717
0.775
0
0.766925
0
141,189,306
null
531,234
93,780
686,614
322,082
2013-01-24 15:07:32
2013-01-24 15:07:47.76
algebra
1
1
0
0
--- - - start - 1359058052725 - "908508" - - answer - 15730 - true - "-2" - - - end
1
15,730
tutor
51,003
22,755
125
LinearSection
51,003
null
68,444
5,450
15,730
322,082
null
-2
0
141,189,306
0.361323
0.978947
0.766925
0