A toothpick puzzle, can you create 7 triangles from 9 toothpicks.
A poster to be printed and laminated, for use at a work station or on an open day.
31 July 2013 Edit: 28 February 2014
Shared by Simon Job Sydney, Australia
Attribution: Based on "Matchstick Puzzle - 9 matches, 7 triangles" from Curiosity Show.