| When | Change | Evidence | Session |
|---|---|---|---|
| 2026-10-14 | Secure → Secure | paper #9 Q1: 0/1, loss=technique — multiplied by 4 correctly but 0.5×4 written as 20, not checked with 15 min unused | session 104 |
| 2026-09-11 | Secure → Secure | 11 Sep starter: map scale 1:25 000, 4 cm apart → 1 km, conversion carried through from centimetres to kilometres rather than stopping at 100 000 cm. Ageing check passed after roughly 11 weeks. | session 19 |
| Attempt | Paper | Q | Marks | Note |
|---|---|---|---|---|
| Exam practice — week 42 · maths, lit, cs — GCSE Mathematics section | exam-skills #9 | 1 | 0/1 | B0. Answer 44. Working 6.5*4 = 24+20 = 44: method right (×4) but 0.5×4 written as 20 — place-value slip, unchecked with 15 min unused. loss=technique. |