| When | Change | Evidence | Session |
|---|---|---|---|
| 2026-09-22 | Developing → Developing | 22 Sep starter: plants more than 20 cm from a 4-group table (11 + 4) → 15 correct, answer only. Third independent boundary question (11, 12, 22 Sep). | session 38 |
| 2026-09-14 | Developing → Developing | 12 Sep starter: shoe-size table, 24 in the class and 12 above size 5, excluding the size-5 group correctly. Second independent boundary question after a one-day gap. | session 23 |
| 2026-09-11 | Gap → Developing | Taught 11 Sep. The June misconception ("more than n" including the group containing n) corrected and then evidenced across three separate contexts: grouped table 6/7, bar chart 4/4, exit ticket 5/5 independent. Read 10 < t ≤ 15 notation correctly without being taught it. Also identified unprompted that grouped data hides individual values. | session 19 |
No marked question has been recorded against this topic yet.