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Polydron

This activity investigates how you might make squares and pentominoes from Polydron.

Fencing Lambs

A thoughtful shepherd used bales of straw to protect the area around his lambs. Explore how you can arrange the bales.

Numerically Equal

Can you draw a square in which the perimeter is numerically equal to the area?

Lawn Border

Age 5 to 11
Challenge Level
How many tiles are there along the width of each lawn?
How many along the length of each lawn?
How many in total are needed for the lawn?
How many tiles are there along the width of the border?
How many along the length of the border?
How many tiles in total are needed for the border?
Can you predict the number of border tiles that would be needed for a differently shaped lawn?
How did you know?