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Let's Investigate Triangles

Vincent and Tara are making triangles with the class construction set. They have a pile of strips of different lengths. How many different triangles can they make?

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Three Fingers and a Loop of String

Using a loop of string stretched around three of your fingers, what different triangles can you make? Draw them and sort them into groups.

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Colouring Triangles

Explore ways of colouring this set of triangles. Can you make symmetrical patterns?

Seven Sticks

Age 5 to 7 Challenge Level:
Use some lolly sticks or headless matches to try out your ideas.
What do you know about triangles?