1 - Getting Started ~3 mins
Think of sharing a snack. Sometimes one person gets a big bit and the other gets a tiny bit. That does not feel fair.
Today we look for fair shares in pictures: real halves where both parts are the same size.
2 - Watch and Notice ~7 mins
Four pictures will land one at a time into two groups: Is a half and Not a half.
Before each picture moves, decide which group it belongs in. The check is always the same: are the two parts equal (the same size)?
3 - Try It Together ~8 mins
We sort pictures into Is a half or Not a half.
Trap to watch: counting pieces is not enough. The pieces have to match.
For each picture ask: are the two parts the same size? Then drag it into the matching group.
Half or not a half?
4 - Sort on Paper ~8 mins
Use page 109 of the Student Activity Book at your table. The six pictures are:
- Apple, two same pieces
- Sandwich, big and small
- Chocolate, two same pieces
- Pizza, big and tiny
- Counters, four and four
- Sweets, three and one
Put each picture into Is a half or Not a half.
Before you place a picture, check: are the two parts the same size?
Spot the half
5 - Write a Half at Home ~4 mins
In your maths copy, finish this sentence:
_____ cut into two matching pieces is a half because the parts are the same size.
If you have time, add one not-a-half: _____ is not a half because one part is bigger.
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