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Written by Dennis Price In this activity, you’ll draw one long line that spirals and snakes around the page, known as a spirolateral. Start with a simple one, and then go on to invent your own spirolaterals!

Have you ever wanted to measure something truly ridiculous? With a lamp and a piece of paper, you can answer a silly sounding question: How bright is the Sun?

You will need Felt sheet Good scissors Cutting the felt Cut a rectangle of felt about 6 cm wide and 20 cm long. Fold the felt in half so the short sides match up. Make two cuts, equally spaced, coming in from the folded side. Stop cutting about 2 cm before you reach the short edges of the […]

You will need Two decks of cards. Younger mathematicians with small hands might have difficulty with a full sized deck of cards. Using smaller cards might be easier. If you’re still having difficulty, try asking an adult for help with shuffling. Overhand shuffle (for right-handed people) If you are left-handed, click here to see the […]

You’ve seen mazes on paper, you may even have explored big mazes on foot. But this maze has a geometric twist – it’s on the surface of a donut. This is a torus maze!

Many words have secret numbers hidden within! Discover them with this pair of quizzes. You can download a printable PDF quiz here.

You may have heard a climate scientist talking about ‘parts per million’ or ppm. If you want to get a handle on what that means, and how much CO2 is in our atmosphere, you’ve come to the right place!

Cones are kinda round, but put them together right and you can make a cubic decoration. Sound confusing? Don’t worry, it’s really simple and really fun!

Would you like to make your own repeating patterns, a la Escher? Grab some scissors and make some tessellating tiles!

For over a thousand years, people have been drawing intricate woven patterns known as Celtic knots. As we’re about to find out, there’s a lot of maths involved!