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Yarn Bombing Maths Rich Task

This week, Mrs Morrie set the 4/5 class a rich Maths task: Yarn Bombing our Walnut Tree!

Mrs Morrie wants the walnut tree at the front of the school to become a special friendship space. The bench under the tree is going to get painted purple and the tree will be yarn bombed! This means that its trunk will be covered by many colourful woollen knitted squares.

Mrs Morrie wants to know how many knitted squares will be needed to cover the trunk of the tree. She already has 78 squares to contribute, but she doesn’t think she’ll have enough.

We went to the tree together and agreed on the surface of the trunk to be covered with yarn. The students were then organised in groups to work out this real-life problem…