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How many triangles can you make on the 3 by 3 pegboard?

Cutting Corners

Can you make the most extraordinary, the most amazing, the most unusual patterns/designs from these triangles which are made in a special way?


Investigate the different shaped bracelets you could make from 18 different spherical beads. How do they compare if you use 24 beads?

Triangle Transformation

Age 7 to 14
Challenge Level
You can print out dotty paper from our Printable Resources page if you would like to draw your triangles on a square grid.
The prompts in the problem offer useful suggestions if you are stuck.