| 2026-10-23 | Developing → Gap | 23 Oct: 10110101 — right place values, adding line written, summed to 175 (correct 181); fixed on a second add. Third adding-line slip (14 Oct, 21 Oct test 32→34, 23 Oct): demoted per three-wobble rule. Dec→bin 166 correct with working. | session 136 |
| 2026-10-21 | Developing → Developing | paper #10 Q9 0/2 and Q10 3/3 — both conversions wrong on execution (34 for 32; extra 8 bit) with the method right; binary addition of three numbers correct | session 127 |
| 2026-10-16 | Developing → Developing | Session 114, 16 Oct, typed, with nothing said about working: 01100101 -> '64 + 32 + 4 + 1 = 101', right, adding line written unasked - that loose end closes. With 2 Oct (2/2 unaided on paper, working asked for) two unaided days right; paper #9 on 14 Oct summed 204 for 214. Proposed secure for adjudication; not moved on one item two days after a timed miss. Retrieval: correct. | standalone |
| 2026-10-15 | Developing → Developing | 15 Oct, typed, 'add it up twice' asked: 11010110 = 128+64+16+4+2 = 214, right - the same five values summed as 204 on paper #9 the day before. Working line was asked for, so the 'unasked' check is still owed. | session 108 |
| 2026-10-14 | Developing → Developing | paper #9 Q12: 0/1, loss=technique — correct place values chosen and the adding line written unprompted (128+64+16+4+2), summed as 204 not 214; Q14 part 2 binary→hex 5D right | session 106 |
| 2026-10-02 | Developing → Developing | 2 Oct, inside the handwritten hex set, photographed: 200 -> 11001000 with a does-it-fit grid and both subtractions written (200 - 128 = 72, 72 - 64 = 8); 10011010 -> 154 by column addition 128 + 16 + 8 + 2 with the carry shown, correct for the pattern written. 2/2 unaided, 3 days after teaching; working had been asked for. Not moved: proposed secure for adjudication - two embedded items, no standalone retest. | session 68 |
| 2026-10-01 | Developing → Developing | 1 Oct starter, no notes, 2 days on: 10110010 → 178 correct, total only with no adding-up line; 90 → 64, 16, 8 & 2, 01011010 correct with columns once asked. Also 172 → 10101100 = 128 + 32 + 8 + 4 inside the hex work. 3/3 unaided, typed. Not moved: the secure retest is owed by hand with working shown, and the working line did not appear unrequested. | session 61 |
| 2026-09-29 | Not started → Developing | 29 Sep: taught from zero on paper (place-value row, 'does it fit' method). Binary→decimal 10010110 → 150 alone; decimal→binary 45 → 00101101 alone (the placement item), 11111111 → 255; typed exit ticket 11100010 → 226 and 201 → 11001001, 2/2 unaided. 5 conversions unaided, 0 wrong. notstarted → developing, single level. Secure needs a later-session retest by hand with working shown. | session 58 |
| 2026-09-28 | Not started → Not started | Placement Q3: 7 min of focus then 'skip' — binary to decimal and 45 to binary not attempted in writing. 0/3, 28 Sep. Untaught. | session 53 |