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• TLF-IDM024940

What do you do when you need to measure a length, height or distance but don't have a ruler or some other measuring instrument? You can compute linear measurements with surprising accuracy using indirect measurements, proportions and estimations. Learn a nifty trick to measure a tree from a distance.

• TLF-IDM025253

What is the true cost of buying something? Gen Fricker explains that it's more than just money. Learn about opportunity cost - what it is, why it's a helpful tool and when to use it. Simple! Then test yourself with ASIC MoneySmart's "Things to think about" classroom exercises.  

• TLF-IDM019986

We all know there are 60 seconds in a minute... or are there? Every few years an extra second is added to a day, and this is called a 'leap second'. Find out why we have leap seconds and why they mightn't be around for much longer.

• TLF-IDM024939

What is the role of zero as a placeholder for large numbers such as 1 million, 1 billion and 1 trillion? Find out about the notion of place value and powers of ten through the act of bead counting.

• TLF-IDM015982

How many locusts in a plague? Find out just how big the threat of locusts can be and how farmers try to prevent the plagues from getting out of control. This clip provides context for a combination of area, area units and rate problems.

• TLF-IDM017689

Lost your protractor? Well, find out how to make an 'angle-a-tron'. This might just be the coolest mathematical tool you've ever used. Measure all sorts of angles. It's easy with an angle-a-tron!

• TLF-IDM018753

Can maths really help to save lives? In this clip we see some real life applications of mathematics. Some are about helping to save lives others are about how maths can be useful. What do Florence Nightingale and WHO, the World Health Organisation have in common?

• TLF-IDM016007

When we need to buy a house we usually have to take out a loan from the bank. We have to pay back that loan with interest. A $350,000 loan can mean paying back $869,000! Listen to Nathan Bazley explain why a small change in interest rates can mean a big difference to the total amount you repay. This clip provides a context ...

• TLF-IDM015772

Hydrographers chart the seabed and coastline, giving ships a map to help them avoid running into underwater trouble. Use this clip as a context for exploring the mapping of the sea floor. Think about scale and how to indicate different depths using contour lines.

• TLF-IDM015895

Dodly is getting ready for a very special occasion tomorrow. How will he fill in his time? How long does he have to wait? And what is his special occasion? With Dodly, Flynn and the Flying GIrl, investigate different ways of measuring time and discover how to read analogue and digital clocks.