# What's new

## Thumb wrestling tournament Activity

by David, 6 January 2015 | 3 comments

Have you ever wondered who thumb wrestles the best? Run a tournament to find out. Even better, you could run two!

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## Play Chomp Game

by David, 16 December 2014 | 0 comments

Here’s an easy game to play with a friend. Can you avoid taking the coloured ball? Give it a go, then use some of our hints to get ahead.

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## Business card Menger sponge Activity

by David, 9 December 2014 | 0 comments

Here’s a seriously crafty construction project to take on! While it’s impossible to make a Menger sponge in real life, give this approximation a go.

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## Rhombic dodecahedron Activity

by David, 6 November 2014 | 0 comments

This decoration and the size of A4 paper share an interesting property. Get hands on to find out more! You will need A4 sheet of light card Pen Scissors Ruler Sticky tape What to do Making the pieces Measure down the long sides of the sheet of card, and make marks at 50, 149 and…

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## Spirolaterals! Activity

by Jasmine, 4 November 2014 | 0 comments

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!

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## Speed camera Activity

by David, 21 October 2014 | 0 comments

How busy is the road near your school? do cars drive past too fast? Grab a stopwatch and sit yourself down – it’s time to become a human speed camera!

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## How bright is the Sun? Activity

by David, 7 October 2014 | 0 comments

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?

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## Impossible plait Activity

by David, 23 September 2014 | 0 comments

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…

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## Shuffle like a pro! Activity

by David, 8 September 2014 | 0 comments

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…

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## Fold Investigator! Activity

by David, 28 August 2014 | 2 comments

To celebrate Australia’s Marine National Facility, you can make a paper model of the ship! You will need a copy of the template, which you can download as a PDF file here, or a JPG image here. First steps