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Day 6 — See all the rectanglesYear 5 Maths · T1 W1–2 · Day 6 lesson

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Year 5 / Term 1 / Weeks 01 02 / Mathematics

Part of the full two-week lesson sequence. Check the pack guide and taught point before teaching.

Open for this lesson: Sources and materials · Check guide.

Teacher copy: This page may include teaching prompts or answer keys. Answer keys in this public library can be viewed by anyone. Give learners a clean prompt, use checks as formative evidence, and change a case locally when prior access matters.

Success: build factor pairs and name all factors of 24. Prepare 24 counters or array mat. (AC9M5N02)

Hook · 2 min. Ask whether 24 can make 5 equal rows of whole counters. Accept “let's test”.
Model · 4 min. Arrange 1×24 and 2×12; turn each rectangle to show a rotated pair is not a new factor pair.
Guided arrays · 5 min. Make 3×8 and 4×6. Test 5×? and explain why no whole row length works.
Independent turn · 7 min. Learners list all four unordered pairs and the factor set {1,2,3,4,6,8,12,24}. They may direct a partner to place tiles or use a multiplication table.
Completeness check · 4 min. Ask why stopping at 4×6 is enough: swapped pairs then repeat. Do not demand formal square-root terminology.
Exit · 3 min. “Is 8 a factor of 24? Show the matching number.” Key: yes, 8×3=24.

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