# Staff key: c-first

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: Start

**Look for in this source:** Twenty-one and thirteen account for thirty-four once; verifying supplied part values is not independently discovering them.

**Next teaching for this question:** Use a new seventeen-object account split ten/seven and include each part once.

**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: Direction

**Look for in this source:** Exactly two members depart first part and enter second; adult movement must follow child decisions to evidence the choice.

**Next teaching for this question:** Enact one departure/arrival on a new eight/four collection before a two-object move.

**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: New parts

**Look for in this source:** Nineteen and fifteen after the two-object transfer; both labels change.

**Next teaching for this question:** On a new twenty/five account move two; count both changed parts, not only the arrival.

**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: Whole

**Look for in this source:** The original whole remains thirty-four, with the same objects moved between parts.

**Next teaching for this question:** Match original members before/after a new small transfer; do not leave copies at departure.

**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.

Original SubjectNest teaching and drawings © NeuroForgeIO Pty Ltd 2026, [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Credit SubjectNest by NeuroForgeIO Pty Ltd, version 0.1.0, source and licence; note changes. Curriculum and provider rights remain separate.

Modified from the named State of Queensland (QCAA) [Years 1–2 techniques/conditions, October 2023](https://www.qcaa.qld.edu.au/downloads/aciqv9/mathematics/assessment/ac9_maths_technique_cond_yr1-2.pdf), [Year 1 standards elaborations, April 2025](https://www.qcaa.qld.edu.au/downloads/aciqv9/mathematics/assessment/ac9_maths_se_yr1.pdf) and [complexity/familiarity advice,2025](https://www.qcaa.qld.edu.au/downloads/aciqv9/mathematics/assessment/ac9_maths_create_questions_complex_familiar_yr1.pdf). Original mathematical tasks/criteria are ours; adapted conditions and folio guidance retain © QCAA 2023/2025, CC BY 4.0 subject to [QCAA copyright](https://www.qcaa.qld.edu.au/copyright), exclusions/third-party notices and no endorsement. No source student work/media/marks/glossary is supplied.