Four Triangles Puzzle

Stage: 1 and 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

The best thing to do is to make the triangles and try it out, or use the interactivity! (You could print this sheet onto coloured paper and then cut out the triangles.)
Does it make a difference if you turn one triangle over in any of the arrangements?
How are you making sure all your patterns are different?

Published December 1998,September 2008.