Transaction
A transaction is an interaction between the student and the tutoring system.
In the transaction table excerpt below, a list of transactions is displayed for a single student working on two tutor problems. In this data, multiple transactions often exist for a single step (the step SCRAP-METAL-AREA Q1, for example, is listed in multiple transactions). These multiple transactions are also known as attempts for a given step.
| # | Student | Problem | Step | Attempt # | Student Input | Evaluation | Knowledge component |
|---|---|---|---|---|---|---|---|
| 1 | S01 | WATERING_VEGGIES | (SPRAY-RADIUS Q1) | 1 | 2 | CORRECT | Enter-Given |
| 2 | S01 | WATERING_VEGGIES | (WATERED-AREA Q1) | 1 | 12.56 | CORRECT | Circle-Area |
| 3 | S01 | WATERING_VEGGIES | (TOTAL-GARDEN Q1) | 1 | 39.43 | INCORRECT | |
| 4 | S01 | WATERING_VEGGIES | (TOTAL-GARDEN Q1) | 1 | 94.985 | INCORRECT | |
| 5 | S01 | WATERING_VEGGIES | (TOTAL-GARDEN Q1) | 2 | HINT | HINT | |
| 6 | S01 | WATERING_VEGGIES | (TOTAL-GARDEN Q1) | 3 | 30.25 | CORRECT | Rectangle-Area |
| 7 | S01 | WATERING_VEGGIES | (UNWATERED-AREA Q1) | 1 | 17.69 | CORRECT | Compose-Areas |
| 8 | S01 | WATERING_VEGGIES | DONE | 1 | DONE | CORRECT | Determine-Done |
| 9 | S01 | MAKING-CANS | (POG-RADIUS Q1) | 1 | 4 | CORRECT | Enter-Given |
| 10 | S01 | MAKING-CANS | (SQUARE-BASE Q1) | 1 | 8 | CORRECT | Enter-Given |
| 11 | S01 | MAKING-CANS | (SCRAP-METAL-AREA Q1) | 1 | 32 | INCORRECT | |
| 12 | S01 | MAKING-CANS | (SCRAP-METAL-AREA Q1) | 2 | 4 | INCORRECT | |
| 13 | S01 | MAKING-CANS | (SQUARE-AREA Q1) | 1 | 64 | CORRECT | Square-Area |
| 14 | S01 | MAKING-CANS | (POG-AREA Q1) | 1 | 50.24 | CORRECT | Circle-Area |
| 15 | S01 | MAKING-CANS | (SCRAP-METAL-AREA Q1) | 3 | 13.76 | CORRECT | Compose-Areas |
| 16 | S01 | MAKING-CANS | (POG-RADIUS Q2) | 1 | 8 | CORRECT | Enter-Given |
| 17 | S01 | MAKING-CANS | (SQUARE-BASE Q2) | 1 | 16 | CORRECT | Enter-Given |
| 18 | S01 | MAKING-CANS | (SQUARE-AREA Q2) | 1 | 256 | CORRECT | Square-Area |
| 19 | S01 | MAKING-CANS | (POG-AREA Q2) | 1 | 200.96 | CORRECT | Circle-Area |
| 20 | S01 | MAKING-CANS | (SCRAP-METAL-AREA Q2) | 1 | 55.04 | CORRECT | Compose-Areas |
| 21 | S01 | MAKING-CANS | (POG-RADIUS Q3) | 1 | 12 | CORRECT | Enter-Given |
| 22 | S01 | MAKING-CANS | (SQUARE-BASE Q3) | 1 | 24 | CORRECT | Enter-Given |
| 23 | S01 | MAKING-CANS | (SQUARE-AREA Q3) | 1 | 576 | CORRECT | Square-Area |
| 24 | S01 | MAKING-CANS | (POG-AREA Q3) | 1 | 452.16 | CORRECT | Circle-Area |
| 25 | S01 | MAKING-CANS | (SCRAP-METAL-AREA Q3) | 1 | 123.84 | CORRECT | Compose-Areas |
| 26 | S01 | MAKING-CANS | DONE | 1 | DONE | CORRECT | Determine-Done |
