Blog

Fred’s teacher has a weird way of marking tests. He gives five marks for a right answer, but subtracts one for a wrong one. Fred answered 20 questions on a test and got 70 marks. How many questions did Fred get right?

Blenders mix milk and chocolate topping. Cereal makers add sultanas and puffs to bran flakes. We all mix things every day, but we know surprisingly little about the mathematics of mixing. One of this year’s Fields Medallists is working to bridge this gap. Many people can shuffle cards, but Artur Avila can shuffle a line.

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 […]

The Australian National University recently renovated their fusion reactor. This magnetic marvel harnesses immense pressures and temperatures to replicate the reactions that power our Sun. And there’s a lot of maths that helps to keep the reactions going! A fusion donut Fusion reactors use hydrogen as fuel. Under intense heat and pressure, the electrons leave […]

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!