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

Cereal Packets

How can you put five cereal packets together to make different shapes if you must put them face-to-face?

Little Boxes

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

Multilink Cubes

Age 7 to 11 Challenge Level:
There are lots of answers to this problem, depending on what questions you choose to ask.

Have a go for yourself, and if you discover anything interesting then let us know!