# Try a new case, choose what is next

Keep your first idea and choose one next maths invitation. Choose safe pieces, marks, tactile objects or tell an adult where to move them.

1. Show the whole and each part.
2. Try another split using the same objects.
3. Check what stayed the same. Keep a useful plan or change it.

Choose a job: [Two-job kit](../choices/day-50-route-1.md), [Open-ten plan](../choices/day-50-route-2.md), [Three-job notes](../choices/day-50-route-3.md). Use a smaller amount when useful. An empty part is zero.

[My paper organiser](../PAPER.md) · [Part Builder](../workspace/index.html) · [Models and empty spaces](../AIDS.md).

<details><summary>Grown-up help</summary>

[Full teacher plan](../teacher/day-50.md). Choose the next teaching by the missing component: coverage, unit value, replacement, changed parts, or justified keep/repair. Use a different small example and then a new case, not the same memorised answer. Use local safe materials and usual communication/access supports. Child-directed adult physical work and child mathematical choice stay distinct. Preserve first thinking before feedback; a drawing is not an actual outside inventory or performance event.

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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.