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Make a cube out of straws and have a go at this practical challenge.


Reasoning about the number of matches needed to build squares that share their sides.

Little Boxes

How many different cuboids can you make when you use four CDs or DVDs? How about using five, then six?

Knight's Swap

Age 7 to 11
Challenge Level
You might like to draw a square and use some counters to help you see the moves.
How will you record what you've done?