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Staff key: d-firstYear 1 Maths · T1 W9–10 · Assessment / D first key

Source and own response remain separate. Preserve first thinking and actual support before reading this key into feedback. A correct supplied value is not independent discovery.

Question 1: Verdict

Look for in this source: Twenty and eight account for twenty-eight, one fewer than the stated twenty-nine; the claim does not fit.

Next teaching for this question: On a new stated whole eleven, model a proposed six/four account and locate the one missing member.

Later invitation: choose a new complete case after that teaching. Record changed quantity/arrangement and prior familiarity; do not repeat this exact answer until memorised.

Question 2: Repair

Look for in this source: A justified repair retains stated whole twenty-nine: twenty/nine, twenty-one/eight or another valid account. Changing the stated whole to twenty-eight is a revised job, not a repair under this question constraint.

Next teaching for this question: Fix a new thirteen-whole plan with ten/two by matching the unaccounted member before relabelling.

Later invitation: choose a new complete case after that teaching. Record changed quantity/arrangement and prior familiarity; do not repeat this exact answer until memorised.

Question 3: Two parts

Look for in this source: A different valid two-part account of twenty-nine, such as ten/nineteen or fourteen/fifteen, distinct from the repaired account.

Next teaching for this question: Move a boundary on a new twenty-one set and name both values.

Later invitation: choose a new complete case after that teaching. Record changed quantity/arrangement and prior familiarity; do not repeat this exact answer until memorised.

Question 4: Three parts

Look for in this source: Any three nonnegative whole parts accounting for twenty-nine once, such as ten/ten/nine; no equal-sharing requirement.

Next teaching for this question: Place every member of a new sixteen set into exactly one of three places and recombine.

Later invitation: choose a new complete case after that teaching. Record changed quantity/arrangement and prior familiarity; do not repeat this exact answer until memorised.

Accept different supported valid partitions subject to the particular question constraints. Record each component independently, with actual source/range/support. Maths hints, access supports and adult physical acts stay distinct. No speed, neatness, voice or motor score; no five-point grade inferred from four questions.

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Modified from the named State of Queensland (QCAA) Years 1–2 techniques/conditions, October 2023, Year 1 standards elaborations, April 2025 and complexity/familiarity advice,2025. Original mathematical tasks/criteria are ours; adapted conditions and folio guidance retain © QCAA 2023/2025, CC BY 4.0 subject to QCAA copyright, exclusions/third-party notices and no endorsement. No source student work/media/marks/glossary is supplied.