Stage: 1 Challenge Level: 
Are any of the pieces square?
How might you use one of the red triangles to make a square?
Can you find another way?
How about using one of the green triangles?
How might you use one of the red triangles to make a square?
Can you find another way?
How about using one of the green triangles?
Visualising. Interlocking cubes. Squares. Tangram. Compound transformations. Investigations. Mixed triangles. Practical Activity. Interactivities. Working systematically.
Published January 2003.
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