Try continuing these patterns made from triangles. Can you create your own repeating pattern?
If you can post the triangle with either the blue or yellow colour face up, how many ways can it be posted altogether?
Can you help the children in Mrs Trimmer's class make different shapes out of a loop of string?
How many different ways can you find to join three equilateral triangles together? Can you convince us that you have found them all?
Watch this "Notes on a Triangle" film. Can you recreate parts of the film using cut-out triangles?
How many triangles can you make using sticks that are 3cm, 4cm and 5cm long?