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Construct-o-straws

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

Matchsticks

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?

Jomista Mat

Age 7 to 11 Challenge Level:

Why not look at this picture with a friend and talk about what you see together?
To make the mat, you'll need to start with one large sheet of paper. Can you see which colour this background sheet is in the picture?
Now look at how you could make the other patterns.