![Colouring Triangles](/sites/default/files/styles/medium/public/thumbnails/content-00-04-letme2-icon.jpg?itok=VxbtyN04)
problem
Colouring Triangles
Explore ways of colouring this set of triangles. Can you make symmetrical patterns?
![Chain of Changes](/sites/default/files/styles/medium/public/thumbnails/content-02-05-letme1-icon.jpg?itok=FijEpKc5)
problem
Chain of Changes
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?