Arrange the shapes in a line so that you change either colour or
shape in the next piece along. Can you find several ways to start
with a blue triangle and end with a red circle?
Move four sticks so there are exactly four triangles.
If you can post the triangle with either the blue or yellow colour face up, how many ways can it be posted altogether?
Explore ways of colouring this set of triangles.
Can you make symmetrical patterns? With two colours? Three colours?
More than three colours?
Can you colour the small triangles, using four colours, with no two
triangles of the same colour side-by-side?