article
What's Inside/Outside/Under the Box?
This article describes investigations that offer opportunities for children to think differently, and pose their own questions, about shapes.
2D shapes and their properties
article
Circles, circles everywhere
This article for pupils gives some examples of how circles have featured in people's lives for centuries.
article
From One Shape to Another
Read about David Hilbert who proved that any polygon could be cut up into a certain number of pieces that could be put back together to form any other polygon of equal area.
article
Pi, a Very Special Number
Read all about the number pi and the mathematicians who have tried to find out its value as accurately as possible.
article
Arclets Explained
This article gives an wonderful insight into students working on the Arclets problem that first appeared in the Sept 2002 edition of the NRICH website.
interactivity
Introducing NRICH TWILGO
We're excited about this new program for drawing beautiful mathematical designs. Can you work out how we made our first few pictures and, even better, share your most elegant solutions with us?
problem
Always, Sometimes or Never? Shape
Age
7 to 11
Challenge level
Are these statements always true, sometimes true or never true?
problem
Always, Sometimes or Never? KS1
Age
5 to 7
Challenge level
Are these statements relating to calculation and properties of shapes always true, sometimes true or never true?
problem
Regular Rings 2
Age
7 to 11
Challenge level
What shape is made when you fold using this crease pattern? Can you make a ring design?
problem
An Equilateral Triangular Problem
Age
11 to 14
Challenge level
Take an equilateral triangle and cut it into smaller pieces. What can you do with them?