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It seems that everyone found this a bit tough! It certainly is very hard to picture the shapes moving around. You really need to find some clear plastic to draw the shapes on, so you can turn them around and see what happens. Or, you could just cut some out of cardboard. You might try drawing them on thin paper and holding them up on a window to let the light shine through.

Try one of these ways of making the clock hands and have another go at the investigation. We would be thrilled to get some solutions on this one.