Currently Secure · last touched 2026-11-04
| When | Change | Evidence | Session |
|---|---|---|---|
| 2026-11-04 | Secure → Secure | paper #12 Q7: 2/2, loss=none — (−4)²=16, 48−10=38, sign handled; page timed 6 min but she had moved around the paper, treat as a guide | session 149 |
| 2026-09-08 | Secure → Secure | 8 Sep starter: 3a² − 2b with a = −2, b = 5 → 2. (−2)² = +4 handled correctly — the classic substitution trap avoided. Ageing check passed after 9 weeks. | session 11 |
| Attempt | Paper | Q | Marks | Note |
|---|---|---|---|---|
| Exam practice — week 45 · maths, lang, cs — GCSE Mathematics section | exam-skills #12 | 7 | 2/2 | M1 A1: −4*−4=16, 16*3=48, 5*2=10, 48−10=38. Sign on (−4)² handled. Page measured 6 min on a 2-min guide but she had moved around the paper so treat as a guide; full marks either way. |