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They’re cute, colourful and … clever? Scientists just discovered that common clownfish can count! Or at least, they can recognise the number of stripes on other fish. And it helps them pick their friends from foes.

In everyday life, most numbers we use are less than 1000. Sometimes scientists need to use MUCH larger numbers. Here’s an insight into how they do it.

The numbers that we use are not the only way to write numbers. You might know how to count with tally marks, or read Roman numerals. But there are plenty of other ways to write numbers. This one comes from the Maya people.

Let’s look at a few interesting patterns you can get by dividing. Some of these patterns need a lot of digits, so get the best calculator you can find.

How long would it take to count to one million? Well you could just start a stopwatch and get to counting, but here’s how to work out if you’ll be done by dinner time.

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 […]

Grab some tokens and let’s go! Here’s a simple game to play with a friend.

This crafty cog activity will get your mind spinning and help you learn more about how we count. Safety: This activity uses a craft knife. Ask an adult to help.