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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?

Jomista Mat

Age 7 to 11
Challenge Level

Jomista mat
This is a picture of a Jomista mat.

What do you notice?
What different shapes can you seen?
How would you describe what you can see?
What patterns stand out for you?

Can you see how the white and brown 'bands' interleave?
Perhaps more importantly can you see how has this Jomista mat been made?

Can you make one yourself?
Do the symmetrical aspects help? Or make it more difficult?