Logo helps us to understand gradients of lines and why Muggles Magic is not magic but mathematics. See the problem Muggles magic.

Follow these instructions to make a three-piece and/or seven-piece tangram.

Arrange your fences to make the largest rectangular space you can. Try with four fences, then five, then six etc.

This is the second in a twelve part introduction to Logo for beginners. In this part you learn to draw polygons.

You could use just coloured pencils and paper to create this design, but it will be more eye-catching if you can get hold of hammer, nails and string.

A game to make and play based on the number line.

Make a mobius band and investigate its properties.

It might seem impossible but it is possible. How can you cut a playing card to make a hole big enough to walk through?

Have a go at drawing these stars which use six points drawn around a circle. Perhaps you can create your own designs?

Using these kite and dart templates, you could try to recreate part of Penrose's famous tessellation or design one yourself.

Make an equilateral triangle by folding paper and use it to make patterns of your own.

Make a cube with three strips of paper. Colour three faces or use the numbers 1 to 6 to make a die.

Learn to write procedures and build them into Logo programs. Learn to use variables.

Have you noticed that triangles are used in manmade structures? Perhaps there is a good reason for this? 'Test a Triangle' and see how rigid triangles are.

Surprise your friends with this magic square trick.

Learn about Pen Up and Pen Down in Logo

Write a Logo program, putting in variables, and see the effect when you change the variables.

More Logo for beginners. Learn to calculate exterior angles and draw regular polygons using procedures and variables.

What happens when a procedure calls itself?

Turn through bigger angles and draw stars with Logo.

In this article for teachers, Bernard uses some problems to suggest that once a numerical pattern has been spotted from a practical starting point, going back to the practical can help explain. . . .

Galileo, a famous inventor who lived about 400 years ago, came up with an idea similar to this for making a time measuring instrument. Can you turn your pendulum into an accurate minute timer?

Did you know mazes tell stories? Find out more about mazes and make one of your own.

Exploring balance and centres of mass can be great fun. The resulting structures can seem impossible. Here are some images to encourage you to experiment with non-breakable objects of your own.

More Logo for beginners. Now learn more about the REPEAT command.

Time for a little mathemagic! Choose any five cards from a pack and show four of them to your partner. How can they work out the fifth?

Make a clinometer and use it to help you estimate the heights of tall objects.

Build a scaffold out of drinking-straws to support a cup of water

How can you make a curve from straight strips of paper?

What shape and size of drinks mat is best for flipping and catching?

It's hard to make a snowflake with six perfect lines of symmetry, but it's fun to try!

Design and construct a prototype intercooler which will satisfy agreed quality control constraints.

Use the tangram pieces to make our pictures, or to design some of your own!

Follow these instructions to make a five-pointed snowflake from a square of paper.

These models have appeared around the Centre for Mathematical Sciences. Perhaps you would like to try to make some similar models of your own.

Make some celtic knot patterns using tiling techniques

Can you order pictures of the development of a frog from frogspawn and of a bean seed growing into a plant?

Here are some ideas to try in the classroom for using counters to investigate number patterns.

Can you puzzle out what sequences these Logo programs will give? Then write your own Logo programs to generate sequences.

This article for students gives some instructions about how to make some different braids.

Kaia is sure that her father has worn a particular tie twice a week in at least five of the last ten weeks, but her father disagrees. Who do you think is right?

Follow the diagrams to make this patchwork piece, based on an octagon in a square.

A description of how to make the five Platonic solids out of paper.

Ideas for practical ways of representing data such as Venn and Carroll diagrams.

This article for pupils gives an introduction to Celtic knotwork patterns and a feel for how you can draw them.