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?
Children from Dennington Primary School have
worked very hard on this problem. Julia and Ryan have each found a
different way of making a symmetrical pattern with two colours:
Julia also used three colours to create this
symmetrical pattern and has drawn in the line of symmetry too:
Ben has used the white background
with two other colours to make these designs:
Kesavan from Latymer All Saints C
of E Primary sent the following designs, which all have a vertical
line of symmetry:
Rebecca looked at ways of
colouring the small triangles with four colours so that no two
triangles of the same colour are side by side: