Day 41 of 180Week 9 of 36, MondayFirst quarter

Halving is dividing by 2

๐Ÿ”ข Math๐Ÿ’ก New todayโฑ๏ธ about 25 minutes

Share 12, then 18, then 24 counters between two people. Write each as a division. Ask what times 2 gives that number โ€” same question, backwards.

Something new, or a fresh angle on it. Expect this one to take the full time.

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Today is rung 1 of 10 on this topic

Division and fact families

Can do: Knows 42 รท 6 because they know 6 ร— 7, and understands division as sharing and as grouping.

Why it matters

Division taught as a separate skill doubles the memorisation load. Taught as multiplication backwards, it's free.

What it looks like when it's wobbly

Treats every division as a brand-new problem to work out by repeated subtraction.

โฑ๏ธ Two-minute check

"56 รท 8?" then "How did you know?" Then: "Write the four facts in that family."

Solid looks like: Seven, justified by 8 ร— 7, and all four related facts.

The full activity for this topic ยท 10 minutes

Fact Family Triangles

PaperPencil
  1. 1Draw a triangle with 6, 7 and 42 at the corners.
  2. 2Cover one corner. They say the missing number and the fact that gives it.
  3. 3Write all four facts from that triangle: two multiplications, two divisions.
  4. 4Do a real sharing problem โ€” 42 sweets between 6 people โ€” and connect it back to the triangle.
  5. 5Then a grouping problem: 42 sweets in bags of 6. Same maths, different picture.

If it's too hard

Use small numbers from tables they already know cold.

If it's too easy

Division with a remainder, and what the remainder means in the actual story.

Say this

"Don't work it out. What times 8 gives you 56? That's the same question."

Math practice

Week 9 at a glance

  1. Monday ยท Day 41

    ๐Ÿ”ข Math

    Halving is dividing by 2

  2. Tuesday ยท Day 42

    ๐Ÿ“– Reading

    Peel off the ends

  3. Wednesday ยท Day 43

    ๐Ÿ”ข Math

    How long was that?

  4. Thursday ยท Day 44

    โœ๏ธ Writing

    Cut ten words

  5. Friday ยท Day 45

    ๐ŸŒ Social Studies

    Draw the island

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