1 - Getting Started ~4 mins
Our class puppet has cut a cake into one giant slice and one tiny sliver, and is handing you the tiny piece. Do you think that is a fair share? Do you think that tiny piece is half of the cake? What went wrong with the cut?
2 - Watch and Notice ~8 mins
Look at this pizza. The two parts are the same size — they would match if you laid one on the other. That is what equal parts means. One of those matching parts is a half.
Now look at the cake beside it: one piece is huge and one is tiny. There are still two pieces, but they do not match. Is one of them a half of the cake?
3 - Try It Together ~8 mins
Set the pizza to two equal slices and shade one. Do the two parts match? That is a fair half.
Now look at the unfair cake cut. One piece is huge and one is tiny. Why is that not a half?
Fair half or not?
4 - Half or Not, Then Draw Equal Halves ~7 mins
In your maths copy, draw a circle with a cut that makes one big piece and one tiny piece. Put a cross under it: that is not a half.
Then draw a circle (use a pre-drawn one if you have it) with a line through the middle so both parts match. Put a tick under it.
5 - Class Challenge ~7 mins
Shade a fair half. Check that both parts match.
Is it really a half?
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