Spirograph

What your child learns

• Patterns, symmetry and curves
• How gear sizes decide the number of points
• Common factors, discovered by drawing

How to play

Pick a gear, a pen hole and a colour, then drag round the ring or hold Turn. Later, make a star with a given number of points, then find which of three gears drew a pattern.

Levels

1. Level 1Draw three patterns, any gear.
2. Level 2Make a star with 3, 4, 6, 8 or 12 points.
3. Level 3Which gear drew this?

A tip for parents

Count the points together and look at the gear’s number of teeth: what do you notice?

Works on phones, tablets and computers, with nothing to install. No ads and no tracking.