Be systematic! What sort of numbers are important to help you solve this problem?
Mar 192013
Mar 022013
How many triangles are in this shape? (A Transum starter)
Download a pdf worksheet here.
When you are absolutely sure you have counted them all, click here and press the yellow button to see if you are right.
Jul 242012
How many sqaures can you find in this diagram? Download a pdf worksheet here.
