Day 48: Does this account fit?

Useful outcome

Make a corrected, checkable quantity note. Use existing safe pieces, original marks or the empty own organiser. Full description. The child may keep the product private.

Prepare and check entry

Prepare the ordinary whole 36 and separate counted/waiting space, two or three parts as relevant, large numeral cards and optional verified ten-strips. Audit a ten before using it. Ask for one-to-one coverage and value of a full unit. Teach missing entry knowledge on a new small collection before today's larger example. Smaller actual quantities remain useful and are named.

Run the 25-minute component

  1. Start, 3 minutes: offer the useful outcome. Ask what amount is being organised and how we can include each object once.
  2. Model, 5 minutes: 30 + 6 = 36. Another account is 20 + 16 = 36. These describe one original collection. Verify each part and include each object once. Compare thirty and six with twenty and sixteen. Both account for thirty-six. Test the faulty claim thirty and five for that stated whole. Find the missing one. Keep a valid account or repair the label/model. Say what your change fixed.
  3. Try together, 7 minutes: the child selects boundaries/members; an adult may move marks at their direction. Ask “What is in each part? What stayed the same?” Check by the actual members, not only matching printed numerals.
  4. Choose, 7 minutes: take one of Card pieces, Drawing tags, Board-game marks. Different purposes/quantities give new work; they are not fixed sensory learner labels.
  5. Show and check, 3 minutes: ask for today's relevant part values, whole and one reason. Keep first thinking/support, then a revision if needed. A model already supplied is not independently invented.
  6. Next invitation: If every claim is changed, show a new valid and invalid small pair without error cues. If the reason is only looks wrong, match each claimed object to actual members before changing a label.

Likely confusion and response

A check may say keep: not every claim is faulty. The actual part members and stated whole decide. If every claim is changed, show a new valid and invalid small pair without error cues. If the reason is only looks wrong, match each claimed object to actual members before changing a label.

What to notice

Look for correct whole/part membership, matching quantities, the day's particular exchange/transfer/check and a supported reason. A correct whole alone does not prove every component. A child can choose a valid partition different from the model. Record actual quantity, access support and mathematical prompts; do not grade voice, handwriting, speed or motor independence.

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