article
Liethagoras' theorem
Liethagoras, Pythagoras' cousin (!), was jealous of Pythagoras and came up with his own theorem. Read this article to find out why other mathematicians laughed at him.
Triangles
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articleIncircles explained
This article is about triangles in which the lengths of the sides and the radii of the inscribed circles are all whole numbers. -
articleSquareo'scope determines the kind of triangle
A description of some experiments in which you can make discoveries about triangles. -
problemAlways, sometimes or never? Shape
Age7 to 11Challenge level
Are these statements always true, sometimes true or never true?
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problemRegular rings 1
Age7 to 11Challenge level
Can you work out what shape is made by folding in this way? Why not create some patterns using this shape but in different sizes? -
problemFolding flowers 2
Age7 to 11Challenge level
Make a flower design using the same shape made out of different sizes of paper. -
problemPaper patchwork 2
Age5 to 7Challenge level
Have a go at making a few of these shapes from paper in different sizes. What patterns can you create?