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Take a square of paper, fold it in half from corner to corner and cut along the fold.
Take one of the triangles, fold it in half and cut along the fold.
Use the three pieces to make a large triangle, a parallelogram and the square again.
Can you make the most extraordinary, the most amazing, the most unusual patterns/designs from these triangles which are made in a special way?
Find a way to cut a 4 by 4 square into only two pieces, then rejoin the two pieces to make an L shape 6 units high.