Choose a quiet teach-back using the ordinary 28-note example. Your helper listens or follows your signs/AAC choices.
- Name three jobs and tell your helper how to give each member exactly one place. Start with the supplied ordinary 10 + 10 + 8 account if useful.
- Explain a check that includes all three parts and the same whole. Ask your helper to show the part you named, without changing your first account.
- Direct or propose a different valid three-part account, keeping the same members. Tell which part labels need changing.
- Choose one useful next practice: tracking every member, checking a full ten, removing an exchanged strip, or explaining a keep/fix decision. If you only told the plan, you can stop there.
Point, speak, sign, use AAC or tell a helper where to put the marks. A quiet private try or pause is fine. No photo, returned homework, purchase or independent drawing/moving is needed.
Grown-up help
**Retained ordinary model.** 10 + 10 + 8 = 28. Give a model only when useful after the child's first thinking; it is not an independently found response. **Director route.** Follow the child's words/signs/AAC choices faithfully; neutral reading and physical operation are different from a maths hint. Use a smaller honest actual amount or pause privately if needed. Below-ten practice cannot establish a full-ten exchange. A narrated proposed move is not an observed physical move. [Full daily plan](../teacher/day-50.md) gives today's exact reasoning and next instruction. This is an ordinary practice model, not a reserved fresh answer. If the total is too large, choose and label a smaller actual collection while keeping the partition purpose. Adult movement follows the child's decisions. Supplied counts are support, not evidence of independently finding that count. 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.Original SubjectNest teaching and drawings © NeuroForgeIO Pty Ltd 2026, CC BY 4.0. Credit SubjectNest by NeuroForgeIO Pty Ltd, version 0.1.0, source and licence; note changes. Curriculum and provider rights remain separate.