Stage: 2 Challenge Level: 
Joshua (Brooklands Primary School, Suffolk) says:
I found this one the hardest. I came back to it the next day and could then see it differently.
He drew a picture of the solution. So did Gemma (Sholing Junior School, Southampton).
Investigations. Tangram. Practical Activity. Compound transformations. Squares. Generalising. Visualising. Working systematically. Cubes. Interactivities.
Published April 2000.
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