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Listed under:  Mathematics  >  Number (Mathematics)  >  Proportions  >  Percentages
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Calculating percentage and simple interest: Banking

Most of us use banks to keep our money safe. We put our money in, can access it at any time and earn interest. So how do the banks make such enormous profits? Where does that money come from? Listen to Nathan Bazley explain how the banks use your money and make a profit. This clip provides a context for percentage, simple ...

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Calculating ratios and percentage: gold price

Gold is a very precious metal. Listen to reporter Natasha Thiele explain how gold became so valuable and why the price of gold fluctuates. Find out how the ratio of dollar value per unit weight is used to calculate the value of an amount of gold. This clip provides a context to calculate ratios and percentage.

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Marking up the price of goods

Why do many items cost far more in Australia than they do overseas? Find out how and why Australian businesses mark up their products so they can make a profit. The clip provides the context for calculating percentage mark up and discounts on shopping items.

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Super Cyril's circus supplies

Do you know how to draw up a budget? Find out how it's done. In our example our host is throwing a circus party and has $100 to spend. See how he plans to spend the money. Throw in a few discounts of 10% and 50% and look what he can afford. Does he mange to stick to his budget?

Tablet friendly (Interactive resource)

Decimaster: match-up 1

Explore ways of representing decimals using mathematical notation and visual tools. Match a decimal fraction between 0 and 1 such as 0.7. Adjust units on an area representation and a common fraction. Match three decimals with each tool.

Interactive resource

Decimaster: match-up 2

Explore ways of representing decimals using mathematical notation and visual tools. Match a decimal fraction between 0 and 1 such as 0.7. Adjust units on a range of visual scales and other representations. Work through these representations in any order: common fraction, number line, counting frame, dial, array and pie ...

Interactive resource

Decimaster plus: match-up 1

Explore ways of representing decimals using mathematical notation and visual tools. Match a decimal fraction between 0 and 4 such as 2.6. Adjust two sets of units on a number line and a common fraction. Match three decimals with each tool. This learning object is one in a series of nine objects.

Interactive resource

Decimaster plus: match-up 2

Explore ways of representing decimals using mathematical notation and visual tools. Match a decimal fraction between 0 and 4 such as 2.6. Adjust two sets of units on a range of visual scales and other representations. Work through these representations in any order: common fraction, number line, counting frame and dial. ...

Interactive resource

Decimaster plus: match-up 3

Explore ways of representing decimals using mathematical notation and visual tools. Match a decimal fraction between 0 and 4 such as 2.6. Adjust two sets of units on a range of visual scales and other representations. Work with a random selection of two of these representations: common fraction, number line, counting frame ...

Interactive resource

Decimaster collections: match-up 1

Explore ways of representing decimals using mathematical notation and visual tools. Match a decimal fraction between 0 and 4 such as 2.6. Adjust two sets of units on a collection (represented by fishbowls) and adjust a common fraction. Match three decimals with each tool. This learning object is one in a series of nine objects.

Interactive resource

Decimaster collections: match-up 2

Explore ways of representing decimals using mathematical notation and visual tools. Match a decimal fraction between 0 and 4 such as 2.6. Adjust two sets of units on a range of visual scales and other representations. Work through these representations in any order: common fraction, number line, counting frame, dial and ...

Interactive resource

Decimaster collections: match-up 3

Explore ways of representing decimals using mathematical notation and visual tools. Match a decimal fraction between 0 and 4 such as 2.6. Adjust two sets of units on a range of visual scales and other representations. Work with a random selection of two of these representations: common fraction, number line, counting frame, ...

Interactive resource

HOTmaths: using relative frequency

Watch marbles fall from a tube, bounce through some obstacles and land in a slot. Calculate the relative frequencies for the bins the marbles land in. Explore the length of trials (number of marbles) required to predict the relative frequency for each bin.

Interactive resource

HOTmaths: exploring relative frequency

Play a laughing clown game to explore randomness. Use the data to calculate relative frequencies. Explore if it is possible to bias the results and hence make the game non-random.

Interactive resource

Design a neighbourhood

Help a town planner to design a site plan for a neighbourhood. Using a 10x20 grid, design areas for four regions (apartments, hospitals, sports fields and schools) based on the fractions, decimals or percentages given. Assign the area required for an additional two regions, using a percentage and a decimal of your choice. ...

Interactive resource

Design a city

Help a town planner to design a site plan for a city. Using a 10x20 grid, design areas for two regions (schools and terraces) based on the percentages given. Assign the area for an additional six regions, using percentages of your choice. Observe the number line displaying equivalent fractions and decimals for the percentages ...

Interactive resource

Design a farm

Help a town planner to design a site plan for a farm. Using a 10x20 grid, design areas for two regions (orchards and houses) based on the decimals given. Assign the area for an additional six regions, using decimals of your choice. Observe the number line displaying equivalent fractions and percentages for the decimals ...

Interactive resource

Neighbourhood fractions

Help a town planner to design site plans. Assign regions on a 10x20 grid for different uses. Calculate the percentage and the fraction of the total site used for each region. Use a number line to display fractions and equivalent decimals. Design site plans for a: 1. Neighbourhood; 2. City; 3. Farm. This learning object ...

Interactive resource

Design a school

Help a town planner to design a site plan for a school. Using a 10x10 grid, design areas for four regions (library, car park, lawn and canteen) based on the percentages given. Assign the area for an additional two regions, using percentages of your choice. Use a number line to indicate the equivalent fractions for two regions. ...

Interactive resource

Design your own school

Help a town planner to design a site plan for a school. Using a 10x10 grid, design areas for two regions (playgrounds and classrooms) based on the percentages given. Assign the area for an additional six regions, using percentages of your choice. Observe the number line displaying equivalent fractions for the percentages ...