Direct a pretend collage story with 17 marks or existing suitable picture pieces. You do not need glue or scissors.
- Invent two scene names, such as sky and ground. Point, sign or tell a helper which waiting members belong in each scene.
- Narrate the first picture: show how many are in each part and how they account for the whole.
- Give a different version of the story by directing a move between the two parts. The same members leave one scene and join the other.
- Tell why you would keep one version for this picture. Trace every member once to check that the new story has not added a second collection.
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.** 5 + 12 = 17. 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-43.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. If ten-and-ones is the only accepted split, physically move two objects between parts of a different teen. Check each part and recombine. If equal sharing is imposed, choose two jobs with different needs.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.