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counting posts

Scientific notation sprinkles Activity

by David, 7 April 2017 | 0 comments

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. You will need Jar of hundreds and thousands sprinkles Measuring spoons and cup Pen Sticky notes What to do

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Maya numbers Activity

by David, 7 March 2017 | 0 comments

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. You will need Pen and paper

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Counting by division Activity

by David, 5 December 2016 | 0 comments

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. If you have a computer with the internet handy, there are some good online calculators to use, such as wolframalpha.com. Some mathematicians might prefer to use…

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Count to a million Activity

by David, 16 September 2016 | 1 comments

Someone thinking, with a thought bubble counting up from 1.

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. You will need Pen Paper Stopwatch First estimate Start by warming up your voice. Sing a few scales and practice your…

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Counting pictures Activity

by David, 19 June 2015 | 0 comments

Want to practice how scientists count whales in the wild? In this activity, we’ll use mark and recapture to count the pictures in a magazine! You will need A magazine Pen and paper Two smartphones or cameras (optional) A friend to count with What to do

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Clever counting keeps fusion firing News

by David, 14 August 2014 | 1 comments

A twisty pink loop is contined within shiny rings.

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…

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A game of Nim Activity

by David, 24 December 2013 | 1 comments

A single token on a table. Someone is reaching for it.

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

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Rolling block puzzle Activity

by David, 10 September 2013 | 0 comments

Upwords board, tiles with letters on them, two balls of plasticine.

Time to get rolling! Use the family board game ‘Upwords’ to try this neat counting technique.

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Counting gears Activity

by David, 4 December 2012 | 0 comments

Foam gears with numbers written on them

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.

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