question_id
stringlengths 31
31
| handwriting_image
imagewidth (px) 100
100
| math_problem
stringlengths 9
12
| correct_answer
int64 0
180
| ocr_prediction
stringclasses 170
values | ocr_parsed_number
int64 0
1.52k
| is_ocr_likely_correct
bool 2
classes | human_label
stringclasses 138
values | was_corrected
bool 2
classes | annotation_status
stringclasses 1
value |
|---|---|---|---|---|---|---|---|---|---|
session_1751315582_5ea57b93_q01
|
7 × 4 = ?
| 28
|
28
| 28
| true
|
28
| false
|
validated
|
|
session_1751315582_5ea57b93_q02
|
4 × 9 = ?
| 36
|
36
| 36
| true
|
36
| false
|
validated
|
|
session_1751315582_5ea57b93_q03
|
8 × 9 = ?
| 72
|
72
| 72
| true
|
72
| false
|
validated
|
|
session_1751315582_5ea57b93_q04
|
2 × 7 = ?
| 14
|
14
| 14
| true
|
14
| false
|
validated
|
|
session_1751315582_5ea57b93_q05
|
7 × 2 = ?
| 14
|
14
| 14
| true
|
14
| false
|
validated
|
|
session_1751315582_5ea57b93_q06
|
4 × 2 = ?
| 8
|
28
| 28
| false
|
8
| true
|
validated
|
|
session_1751315582_5ea57b93_q07
|
8 × 2 = ?
| 16
|
16
| 16
| true
|
16
| false
|
validated
|
|
session_1751315582_5ea57b93_q08
|
8 × 9 = ?
| 72
|
72
| 72
| true
|
72
| false
|
validated
|
|
session_1751315582_5ea57b93_q09
|
8 × 8 = ?
| 64
|
64
| 64
| true
|
64
| false
|
validated
|
|
session_1751315582_5ea57b93_q10
|
5 × 4 = ?
| 20
|
20
| 20
| true
|
20
| false
|
validated
|
|
session_1751316257_6f515b23_q01
|
5 × 2 = ?
| 10
|
10
| 10
| true
|
10
| false
|
validated
|
|
session_1751316257_6f515b23_q02
|
9 × 9 = ?
| 81
|
81
| 81
| true
|
81
| false
|
validated
|
|
session_1751316257_6f515b23_q03
|
3 × 4 = ?
| 12
|
12
| 12
| true
|
12
| false
|
validated
|
|
session_1751316257_6f515b23_q04
|
2 × 9 = ?
| 18
|
18
| 18
| true
|
18
| false
|
validated
|
|
session_1751316257_6f515b23_q05
|
7 × 4 = ?
| 28
|
28
| 28
| true
|
28
| false
|
validated
|
|
session_1751316257_6f515b23_q06
|
6 × 3 = ?
| 18
|
18
| 18
| true
|
18
| false
|
validated
|
|
session_1751316257_6f515b23_q07
|
4 × 4 = ?
| 16
|
16
| 16
| true
|
16
| false
|
validated
|
|
session_1751316257_6f515b23_q08
|
4 × 4 = ?
| 16
|
16
| 16
| true
|
16
| false
|
validated
|
|
session_1751316257_6f515b23_q09
|
3 × 8 = ?
| 24
|
24
| 24
| true
|
24
| false
|
validated
|
|
session_1751316257_6f515b23_q10
|
5 × 3 = ?
| 15
|
15
| 15
| true
|
15
| false
|
validated
|
|
session_1751316319_43b05671_q01
|
13 + 33 = ?
| 46
|
46
| 46
| true
|
46
| false
|
validated
|
|
session_1751316319_43b05671_q02
|
26 + 40 = ?
| 66
|
66
| 66
| true
|
66
| false
|
validated
|
|
session_1751316319_43b05671_q03
|
10 + 25 = ?
| 35
|
35
| 35
| true
|
35
| false
|
validated
|
|
session_1751316319_43b05671_q04
|
37 + 46 = ?
| 83
|
83
| 83
| true
|
83
| false
|
validated
|
|
session_1751316319_43b05671_q05
|
45 + 5 = ?
| 50
|
50
| 50
| true
|
50
| false
|
validated
|
|
session_1751316319_43b05671_q06
|
19 + 15 = ?
| 34
|
34
| 34
| true
|
34
| false
|
validated
|
|
session_1751316319_43b05671_q07
|
13 + 29 = ?
| 42
|
42
| 42
| true
|
42
| false
|
validated
|
|
session_1751316365_b617b97b_q01
|
31 + 29 = ?
| 60
|
60
| 60
| true
|
60
| false
|
validated
|
|
session_1751316365_b617b97b_q02
|
32 + 14 = ?
| 46
|
46
| 46
| true
|
46
| false
|
validated
|
|
session_1751316365_b617b97b_q03
|
39 + 24 = ?
| 63
|
63
| 63
| true
|
63
| false
|
validated
|
|
session_1751316365_b617b97b_q04
|
38 + 21 = ?
| 59
|
59
| 59
| true
|
59
| false
|
validated
|
|
session_1751316365_b617b97b_q05
|
18 + 15 = ?
| 33
|
33
| 33
| true
|
33
| false
|
validated
|
|
session_1751316421_fc88e284_q01
|
28 + 35 = ?
| 63
|
63
| 63
| true
|
63
| false
|
validated
|
|
session_1751316421_fc88e284_q02
|
37 + 15 = ?
| 52
|
52
| 52
| true
|
52
| false
|
validated
|
|
session_1751316421_fc88e284_q03
|
50 + 43 = ?
| 93
|
93
| 93
| true
|
93
| false
|
validated
|
|
session_1751316421_fc88e284_q04
|
38 + 42 = ?
| 80
|
80
| 80
| true
|
80
| false
|
validated
|
|
session_1751316421_fc88e284_q05
|
17 + 18 = ?
| 35
|
35
| 35
| true
|
35
| false
|
validated
|
|
session_1751316421_fc88e284_q06
|
47 + 34 = ?
| 81
|
81
| 81
| true
|
81
| false
|
validated
|
|
session_1751316622_05beb66e_q01
|
38 + 22 = ?
| 60
|
60
| 60
| true
|
60
| false
|
validated
|
|
session_1751316622_05beb66e_q02
|
9 + 44 = ?
| 53
|
3
| 3
| false
|
53
| true
|
validated
|
|
session_1751316622_05beb66e_q03
|
26 + 4 = ?
| 30
|
30
| 30
| true
|
30
| false
|
validated
|
|
session_1751316622_05beb66e_q04
|
14 + 45 = ?
| 59
|
59
| 59
| true
|
59
| false
|
validated
|
|
session_1751316622_05beb66e_q05
|
47 + 25 = ?
| 72
|
72
| 72
| true
|
72
| false
|
validated
|
|
session_1751316622_05beb66e_q06
|
45 + 24 = ?
| 69
|
69
| 69
| true
|
69
| false
|
validated
|
|
session_1751318455_1cc98e7a_q01
|
30 + 6 = ?
| 36
|
36
| 36
| true
|
36
| false
|
validated
|
|
session_1751318455_1cc98e7a_q02
|
39 + 26 = ?
| 65
|
65
| 65
| true
|
65
| false
|
validated
|
|
session_1751318455_1cc98e7a_q03
|
22 + 34 = ?
| 56
|
556
| 556
| false
|
56
| true
|
validated
|
|
session_1751318455_1cc98e7a_q04
|
38 + 27 = ?
| 65
|
65
| 65
| true
|
65
| false
|
validated
|
|
session_1751318455_1cc98e7a_q05
|
3 + 19 = ?
| 22
|
22
| 22
| true
|
22
| false
|
validated
|
|
session_1751318455_1cc98e7a_q06
|
7 + 24 = ?
| 31
|
31
| 31
| true
|
31
| false
|
validated
|
|
session_1751318455_1cc98e7a_q07
|
31 + 29 = ?
| 60
|
60
| 60
| true
|
60
| false
|
validated
|
|
session_1751318517_5defe948_q01
|
9 × 6 = ?
| 54
|
54
| 54
| true
|
54
| false
|
validated
|
|
session_1751318517_5defe948_q02
|
8 × 8 = ?
| 64
|
64
| 64
| true
|
64
| false
|
validated
|
|
session_1751318517_5defe948_q03
|
8 × 9 = ?
| 72
|
72
| 72
| true
|
72
| false
|
validated
|
|
session_1751318517_5defe948_q04
|
2 × 8 = ?
| 16
|
16
| 16
| true
|
16
| false
|
validated
|
|
session_1751318517_5defe948_q05
|
3 × 6 = ?
| 18
|
18
| 18
| true
|
18
| false
|
validated
|
|
session_1751318517_5defe948_q06
|
3 × 5 = ?
| 15
|
15
| 15
| true
|
15
| false
|
validated
|
|
session_1751318517_5defe948_q07
|
2 × 3 = ?
| 6
|
26
| 26
| false
|
6
| true
|
validated
|
|
session_1751318517_5defe948_q08
|
5 × 7 = ?
| 35
|
35
| 35
| true
|
35
| false
|
validated
|
|
session_1751318517_5defe948_q09
|
9 × 2 = ?
| 18
|
18
| 18
| true
|
18
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q01
|
6 × 9 = ?
| 54
|
54
| 54
| true
|
54
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q02
|
7 × 5 = ?
| 35
|
35
| 35
| true
|
35
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q03
|
7 × 6 = ?
| 42
|
44
| 44
| false
|
42
| true
|
validated
|
|
session_1751318616_bd6ca4c6_q04
|
2 × 5 = ?
| 10
|
10
| 10
| true
|
10
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q05
|
3 × 5 = ?
| 15
|
15
| 15
| true
|
15
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q06
|
8 × 6 = ?
| 48
|
48
| 48
| true
|
48
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q07
|
4 × 3 = ?
| 12
|
12
| 12
| true
|
12
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q08
|
9 × 4 = ?
| 36
|
36
| 36
| true
|
36
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q09
|
3 × 5 = ?
| 15
|
15
| 15
| true
|
15
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q10
|
6 × 2 = ?
| 12
|
012
| 12
| true
|
12
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q11
|
6 × 3 = ?
| 18
|
18
| 18
| true
|
18
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q12
|
2 × 6 = ?
| 12
|
12
| 12
| true
|
12
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q13
|
8 × 8 = ?
| 64
|
64
| 64
| true
|
64
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q14
|
2 × 2 = ?
| 4
|
2
| 2
| false
|
4
| true
|
validated
|
|
session_1751318616_bd6ca4c6_q15
|
7 × 3 = ?
| 21
|
21
| 21
| true
|
21
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q16
|
5 × 7 = ?
| 35
|
33
| 33
| false
|
35
| true
|
validated
|
|
session_1751318616_bd6ca4c6_q17
|
4 × 6 = ?
| 24
|
24
| 24
| true
|
24
| false
|
validated
|
|
session_1751318616_bd6ca4c6_q18
|
2 × 7 = ?
| 14
|
14
| 14
| true
|
14
| false
|
validated
|
|
session_1751318953_0b9c7402_q01
|
36 + 45 = ?
| 81
|
81
| 81
| true
|
81
| false
|
validated
|
|
session_1751318953_0b9c7402_q02
|
60 + 63 = ?
| 123
|
0123
| 123
| true
|
123
| false
|
validated
|
|
session_1751318953_0b9c7402_q03
|
66 + 54 = ?
| 120
|
12
| 12
| false
|
120
| true
|
validated
|
|
session_1751318953_0b9c7402_q04
|
95 + 85 = ?
| 180
|
180
| 180
| true
|
180
| false
|
validated
|
|
session_1751318953_0b9c7402_q05
|
58 + 32 = ?
| 90
|
90
| 90
| true
|
90
| false
|
validated
|
|
session_1751318953_0b9c7402_q06
|
64 + 93 = ?
| 157
|
157
| 157
| true
|
157
| false
|
validated
|
|
session_1751318953_0b9c7402_q07
|
49 + 27 = ?
| 76
|
776
| 776
| false
|
76
| true
|
validated
|
|
session_1751318953_0b9c7402_q08
|
82 + 36 = ?
| 118
|
118
| 118
| true
|
118
| false
|
validated
|
|
session_1751318953_0b9c7402_q09
|
48 + 35 = ?
| 83
|
83
| 83
| true
|
83
| false
|
validated
|
|
session_1751318953_0b9c7402_q10
|
46 + 99 = ?
| 145
|
1495
| 1,495
| false
|
145
| true
|
validated
|
|
session_1751319120_f50a8201_q01
|
8 × 12 = ?
| 96
|
0
| 0
| false
|
96
| true
|
validated
|
|
session_1751319120_f50a8201_q02
|
10 × 5 = ?
| 50
|
50
| 50
| true
|
50
| false
|
validated
|
|
session_1751319120_f50a8201_q03
|
4 × 10 = ?
| 40
|
40
| 40
| true
|
40
| false
|
validated
|
|
session_1751319120_f50a8201_q04
|
10 × 7 = ?
| 70
|
70
| 70
| true
|
70
| false
|
validated
|
|
session_1751319120_f50a8201_q05
|
10 × 5 = ?
| 50
|
50
| 50
| true
|
50
| false
|
validated
|
|
session_1751319120_f50a8201_q06
|
12 × 11 = ?
| 132
|
132
| 132
| true
|
132
| false
|
validated
|
|
session_1751319120_f50a8201_q07
|
8 × 6 = ?
| 48
|
48
| 48
| true
|
48
| false
|
validated
|
|
session_1751319120_f50a8201_q08
|
6 × 6 = ?
| 36
|
36
| 36
| true
|
36
| false
|
validated
|
|
session_1751319120_f50a8201_q09
|
9 × 10 = ?
| 90
|
90
| 90
| true
|
90
| false
|
validated
|
|
session_1751319174_db25df8d_q01
|
66 + 80 = ?
| 146
|
146
| 146
| true
|
146
| false
|
validated
|
|
session_1751319174_db25df8d_q02
|
56 + 84 = ?
| 140
|
140
| 140
| true
|
140
| false
|
validated
|
|
session_1751319174_db25df8d_q03
|
88 + 68 = ?
| 156
|
176
| 176
| false
|
176
| false
|
validated
|
End of preview. Expand
in Data Studio
CalcTrainer Annotator 📝
Annotation tool for validating OCR predictions on handwritten math answers from CalcTrainer
How to Use
- Review the math problem and handwritten answer
- Validate or correct the OCR suggestion:
- ✅ Correct → Validates and moves to next
- ❌ Incorrect → Type correct number and validate
- Export annotations anytime to save progress
Features
- Smart filtering: Only shows unannotated entries
- OCR suggestions: Pre-filled predictions with error warnings
- Incremental export: Safely add annotations without data loss
- Progress tracking: Real-time statistics
Data Flow
CalcTrainer → Raw Dataset → Manual Annotation → Validated Dataset
Output
Creates hoololi/CalcTrainer_dataset_annotated with human-validated labels for OCR model fine-tuning.
Private Space - Controlled access for annotation quality.
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