What happens when a procedure calls itself?

Learn about Pen Up and Pen Down in Logo

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.

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

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?

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

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

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

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

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

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.

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

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

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

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

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

Turn through bigger angles and draw stars with Logo.

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

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. . . .

Make an equilateral triangle by folding paper and use it to make patterns 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?

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

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

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

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

Paint a stripe on a cardboard roll. Can you predict what will happen when it is rolled across a sheet of paper?

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

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.

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?

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

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

Here's a simple way to make a Tangram without any measuring or ruling lines.

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?

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.

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

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