What happens when a procedure calls itself?

Turn through bigger angles and draw stars with Logo.

Learn about Pen Up and Pen Down in Logo

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

This part introduces the use of Logo for number work. Learn how to use Logo to generate sequences of numbers.

Learn how to draw circles using Logo. Wait a minute! Are they really circles? If not what are they?

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

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

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

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

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

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?

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?

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. . . .

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

As part of Liverpool08 European Capital of Culture there were a huge number of events and displays. One of the art installations was called "Turning the Place Over". Can you find our how it works?

Which of the following cubes can be made from these nets?

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

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

Make some celtic knot patterns using tiling techniques

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

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

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

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

Draw whirling squares and see how Fibonacci sequences and golden rectangles are connected.

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.

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

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

How many differently shaped rectangles can you build using these equilateral and isosceles triangles? Can you make a square?

These are pictures of the sea defences at New Brighton. Can you work out what a basic shape might be in both images of the sea wall and work out a way they might fit together?

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.

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

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

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

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

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

Here is a chance to create some Celtic knots and explore the mathematics behind them.

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

Make a mobius band and investigate its properties.

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.

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

Surprise your friends with this magic square trick.

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

A jigsaw where pieces only go together if the fractions are equivalent.

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

How can you make an angle of 60 degrees by folding a sheet of paper twice?