What to do:
Perhaps you can make some funny figures or outlines of everyday
objects. When you've made something you like, you could perhaps
sketch out how the three shapes fit together so you don't forget.
Then you could just draw the outline and challenge someone else to
If you're feeling very adventurous, you may like to make a
seven-piece tangram which is used in all the World of Tan activties
(put 'world of tan' into the search box in the top right of NRICH
to find them). This is what it looks like:
This activity features in our
December 2008 Advent Calendar .