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Listed under:  Mathematics  >  Number (Mathematics)  >  Number operations  >  Addition
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Mapping a sea voyage: calculating distance

Scientists involved in the Two Bays Project describe data collection methods for their 20-day expedition around Port Phillip and Western Port bays. Watch this clip to view the route mapped out by the scientists. Use Google Maps to recreate the route and calculate the total distance travelled.

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How many are left?

Flynn and Dodly are practising their magic tricks. They are trying to make eggs, muffins and even guinea pigs disappear. Help our two friendly monsters work out how many should be left after their disappearing tricks.

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Addition: adding numbers from one to ten

Flynn and Dodly go camping. While on their camping adventure they investigate adding numbers from one to ten. Watch how they work out how many of each item they have altogether. The Flying Girl and Ben the Bilby also appear.

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Counting pirate treasure

Watch as a stingy pirate captain counts out wages in 'pieces of eight' (gold coins) for one of his crew. Watch as the pirate captain takes away pieces of eight for what he calls 'deductions'. See how much gold the crew member walks away with!

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Funny money

What do you use money to buy? In this clip we look at Australian money. See the different coins and notes that make up our money system. We investigate if size, (in coins) does matter. Check out how many 5 cent pieces you need to make two dollars. We also look at some currencies used around the world. Find out which country ...

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Elmo's ducks

Sing along with Elmo and his four quacking ducks. One by one the ducks go away. How many ducks are left? See if Elmo's ducks come back.

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Adding two numbers

How many different ways can you think of to add two numbers to reach ten? Watch this video to learn them all!

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Wombat stew. Integrated program

Inspired by the picture book Wombat Stew, lessons involve children in going on a Wombat walk to collect rubbish, investigating animal habitats, creating an Australian animals alphabet frieze, creating animal number stories, exploring vocabulary, making Wombat soup, discussing safe and unsafe situations, developing a news ...

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Wombat stew: counting and ordering animals. Mathematics

Based on the picture books Wombat Stew and One Woolly Wombat, lessons involve children in counting and ordering animals and solving and creating addition and subtraction number stories about the characters in Wombat Stew.

Teacher resource

Mental computation: introduction

This is a teacher resource that is part of a wider series; it introduces a structured strategies-based approach to mental computation for primary level and provides four generic classroom activities that can be used to empower students to use, share and test strategies. The support material describes the content of the ...

Teacher resource

Mental computation: basic facts - addition and subtraction

This is a teacher resource that is part of a wider series; it develops a structured strategies-based approach to mental computation of the 242 basic mathematics facts at primary level. The resource provides 13 stimulating classroom activities that encourage students to use a wide variety of mental-computation strategies. ...

Teacher resource

Mental computation: two-digit whole numbers

This is a teacher resource that is part of a wider series; it provides a structured strategies-based approach to mental computation of two-digit whole number sums at primary level. It provides 14 classroom activities that enable students to apply appropriate mental-computation strategies to more challenging sums. The support ...

Teacher resource

Mental computation: fractions and decimals

This is a teacher resource that is part of a wider series; it provides a structured strategies-based approach to mental computation of problems involving common and decimal fractions for primary level. It provides nine classroom activities that enable students to develop mental-computation skills in sequence by building ...

Teacher resource

Primary mathematics: open-ended tasks

These seven learning activities, which focus on 'open-ended tasks' using a variety of tools (software) and devices (hardware), illustrate the ways in which content, pedagogy and technology can be successfully and effectively integrated in order to promote learning. In the activities, teachers use investigations in order ...

Teacher resource

Number talks

Use these tasks and resources to provide opportunities for students to explain mental strategies for performing calculations. Present a number of mathematical statements for students to investigate whether they are true or false. As a further challenge include statements about percentages and improper fractions.

Interactive resource

Counting beetles: level 1

Watch the beetles crawl into the garden or out of the garden. Watch some beetles completely or partially hide beneath the leaves. Work out how many beetles there are altogether. Choose a number for your answer and check it. This learning object is one in a series of five objects. Three objects in the series are also packaged ...

Interactive resource

Counting beetles: level 2

Watch the beetles crawl into the garden or out of the garden. Watch some beetles completely or partially hide beneath the leaves. Work out how many beetles there are altogether. Choose a number for your answer and check it. This learning object is one in a series of five objects. Three objects in the series are also packaged ...

Interactive resource

Counting beetles: level 3

Watch the beetles crawl into the garden or out of the garden. Watch some beetles completely or partially hide beneath the leaves. Work out how many beetles there are altogether. Remember to count any beetles hiding under the rock. Choose a number for your answer and check it. This learning object is one in a series of five ...

Interactive resource

Counting beetles: making word problems

Make a word problem using beetles. First, decide whether to add or subtract. Select the number of beetles for your problem. Use the number line to show how to solve the problem. Watch an animation of the problem on a number line. Make a number sentence to match the number line. This learning object is one in a series of ...

Interactive resource

Counting beetles: solving word problems

Look at a word problem that uses beetles. Use the number line to show how to solve the problem. Watch an animation of the problem on a number line. Make a number sentence to match the number line. This learning object is one in a series of five objects. Three objects in the series are also packaged as a combined learning object.