Expansion with a minus outside and a fresh changing-ratio item were right alone, but a negative divisor dropped the flip twice and the exit ticket was cut by her 'times up' at 10:43. Ran 09:15-10:43 on the Tuesday interleaved-practice block (warm-up #11 already done); non-calc; typed answers with six photos of drawings; one item per message; breaks about 09:38-09:42 and 10:00-10:02. Q1 -2x at most 10: first drawing used -2 and 10 as the ends of the line, x missing in the first line; 10 divided by -2 = -5 right; number tests 0 fits, -8 does not, both right with sums; x at least -5 written after the hint that 0 sits right of -5; ring at -5 in the right place but empty and a filled dot at 10, fixed to a filled ring and arrow after two prompts. Q2 -3(x-4) = -3x + 12 right first time. Q3 changing ratio 3:5 with 15 red to 4:5: 20 right with both lines after being asked for the one-part line. Q4 fresh 2:3 with 12 red to 5:3: 30 and 18 added, both lines, alone. Listing integers opened with a worked example: why 4 is out first answered off topic, then right after a number-test prompt (sign named greater than instead of less than); Q5 3n+2<14, n>=0 gave 0,1,2,3 with a spoken reason. Exit ticket Q6 -2n >= -8, n>0: -n >= -4 valid, then n >= 4 (flip missed, n>0 ignored); n = 5 said to fit, -2 x 5 = -10 right; the comparison of -10 with -8 was not answered at the stop. 0 blank. Not run: the cube-root and square-root starter pair, the mixed set.
Finish the last question from today: -2n at least -8 with n above 0. She tests n = 5 and n = 2 in the original, says which fits, redoes the divide line and lists n. Then, cold, -2x at most 10 drawn with a filled ring and arrow. Then a cube-root and a square-root rearrangement back to back.
Exit ticket -2n >= -8 and n > 0 (list n) unfinished: flip missed, n > 0 ignored; stopped while comparing -10 with -8 for n = 5. Cube-root/square-root starter pair and the mixed set not run.
| Topic | Name | Change | Evidence recorded |
|---|---|---|---|
| A22 | Developing → Developing | 20 Oct, non-calc. -2x at most 10 cold: first attempt used -2 and 10 as the line's ends; after number tests wrote x >= -5, ring at -5 empty first, filled after a prompt. Listing: Q5 0,1,2,3 right after one example; exit ticket -2n >= -8, n > 0 failed: flip dropped (n >= 4), n > 0 ignored, n = 5 said to fit. 1/2 on listing, 0/2 on negative divisor unaided. | |
| A4 | Secure → Secure | 20 Oct, cold, non-calc, typed: -3(x-4) = -3x + 12 first time, both terms multiplied, minus times minus right; 1/1 unaided. | |
| R7-R8 | Secure → Secure | 20 Oct, non-calc: changing ratio 3:5 with 15 red to 4:5 right (20) with both lines after the one-part line was asked for; fresh 2:3 with 12 red to 5:3 alone: 12/2 = 6, 5*6 = 30, 30-12 = 18 added, 1/1 unaided with working. |