Development draft · local review needed
Day 148 — Which design uses more pieces?Foundation Maths · T3 W29–30 · Day 148 lesson ← Day 147 All days Day 149 →
Goal: directly compare 12 and 16 matching tiles and explain the evidence. Proposed codes: AC9MFN01, AC9MFN03. Prepare: C3, Card 148, two design trays.
Question · 3 min. Show A and B with same large tile size. Ask “Which uses more pieces?” not “Which is stronger?”Model · 4 min. Begin one-to-one pairs, one A tile with one B tile; stop before revealing all extras.Guide · 5 min. Child completes matching or counts both with tracked path and names any unpaired B tiles.Independent compare · 7 min. Child chooses paper stand, model bridge or stage sign and explains which set has more and how they know.Boundary · 4 min. Ask if more tiles proves stronger design. Child names a strength/stability test not completed by counting.Exit · 2 min. Child represents 12 and 16 with numerals or two rows of marks if taught; record comparison reasoning separately.
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These are authored drafts, not classroom pilot results, local syllabus approval or individual learner advice. Check local requirements and adapt with your learners.
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