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Listed under:  Mathematics  >  Number (Mathematics)  >  Number operations  >  Accuracy and precision
Interactive Resource

Whole numbers level 5: four-digit numbers

  • TLF-IDM009391

This set of online activities focuses on the development and consolidation of number concepts to four digits and beyond. This is the fifth of seven levels in a series focusing on whole numbers to six digits. This level develops ideas about place value, rounding and number notation. Each level includes interactive drills ...

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Moving Image

Space debris: the accuracy of space lasers

  • TLF-IDM015754

In space there are thousands of human-made objects (satellites and space junk) orbiting Earth. To avoid collision with space debris, satellites are manoeuvred out of its path. Discover how space debris is tracked using lasers, and about accuracy's effects on the lifetime of the satellite. Find out, using trigonometry, the ...

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Teacher resource

Engaging a Maths Class

  • TLF-IDM017013

The teacher draws upon her postgraduate research into student engagement in mathematics to develop innovative ways to support students in their learning. She encourages teamwork and the use of various resources to aid their thinking and learning. By helping students think about mathematics in ways that move beyond a simple ...

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Interactive resource

Hopper: whole numbers

  • TLF-IDL1084

Help a frog to jump along a number line. Estimate the finishing point on a number line, after adding or subtracting multiples of whole numbers to a starting number. For example, 255+(10 x 4) = 295. Explore the patterns made on a counting grid and number line. Identify counting rules that match the pattern of 'landing spots' ...

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Interactive resource

HOTmaths: exploring bearings

  • TLF-IDL10841

Use a map of New South Wales and a virtual compass to calculate the bearing of one town to another.

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Interactive resource

Hopper: tenths

  • TLF-IDL1085

Help a frog to jump along a number line. Estimate the finishing point on a number line, after adding or subtracting multiples of tenths to a starting number. For example, 29.5+(12 x 0.2) = 31.9. Explore the patterns made on a counting grid and number line. Identify counting rules that match the pattern of 'landing spots' ...

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Interactive resource

Hopper: ultimate

  • TLF-IDL1086

Help a frog to jump along a number line. Estimate the finishing point on a number line, after adding or subtracting multiples of decimal fractions or whole numbers to a starting number. For example, 1.72 + (11 x 0.07) = 2.49. Explore the patterns made on a counting grid and number line. Identify counting rules that match ...

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Interactive resource

Hopper challenge: whole numbers

  • TLF-IDL1087

Help a frog to jump along a number line. Estimate the exact finishing point on a number line, after adding or subtracting multiples of whole numbers to a starting number. For example, 1+ (5 x 2) = 11. Explore the patterns made on a counting grid and number line. Identify counting rules that match the pattern of 'landing ...

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Interactive resource

Hopper challenge: tenths

  • TLF-IDL1088

Help a frog to jump along a number line. Estimate the exact finishing point on a number line, after adding or subtracting multiples of tenths to a starting number. For example, 29.5+(12 x 0.2) = 31.9. Explore the patterns made on a counting grid and number line. Identify counting rules that match the pattern of 'landing ...

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Interactive resource

Hopper challenge: ultimate

  • TLF-IDL1090

Help a frog to jump along a number line. Estimate the exact finishing point on a number line, after adding or subtracting multiples of tenths or whole numbers to a starting number. For example, 29.5+(12 x 0.2) = 31.9. Explore the patterns made on a counting grid and number line. Identify counting rules that match the pattern ...

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Interactive resource

The slushy sludger: best guess

  • TLF-IDL116

Use a vending machine to squirt 'slushies' into ice-cream cones. The machine serves coloured slush randomly from four slots. Work out which colour is the most common (most likely to be served). Notice that the least common colours are sometimes served. Make several guesses, then check your results from the random sample. ...

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Tablet friendly (Interactive resource)

Cassowary ecology quiz

  • TLF-IDL119

Explore facts about the life of cassowaries: physical characteristics; diet; habitat; life cycles; and locations. Interact with graphs to see how much people can help cassowaries. Work through ecology notes and resources. Answer questions as you go; express your answers as fractions. This learning object is one in a series ...

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Interactive resource

Compound shapes

  • TLF-IDL153

Select from three levels of complexity for working with polygons. Estimate the area of a randomly-generated polygon. Try counting squares on a grid to help your estimate. Cut the shape into rectangles and triangles. Use a formula to calculate the exact area for each of the simple shapes. Then find the total area for the ...

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Interactive resource

The foul food maker: go figure

  • TLF-IDL215

This tutorial is suitable for use with a screen reader. It explains how the use of simple words can describe the likelihood of everyday events. How likely is an event: certain, likely, equal chance, unlikely or certainly not? Answer some questions using these words and then build your own examples. Learn how to describe ...

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Interactive resource

Wishball: thousandths

  • TLF-IDL495

Test your understanding of decimal place value with numbers that include thousandths. Receive a starting number, such as 3.569, and work towards turning it into a target number, such as 7.832. Spin a random digit, choose its decimal place value and decide whether to add or subtract the random digit from your starting number. ...

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Interactive resource

Hopper: hundredths

  • TLF-IDL587

Help a frog to jump along a number line. Estimate the finishing point on a number line, after adding or subtracting multiples of hundredths to a starting number. For example, 1.72 + (11 x 0.07) = 2.49. Explore the patterns made on a counting grid and number line. Identify counting rules that match the pattern of 'landing ...

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Interactive resource

Counting beetles: level 1

  • TLF-IDL8281

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 ...

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Interactive resource

Counting beetles: level 2

  • TLF-IDL8282

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 ...

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Interactive resource

My day: Li: level 3

  • TLF-IDL8294

Help Li by selecting the best texts for different parts of his day. Choose the correct text in a range of activities such as helping Li make up his mind about which food is healthy for breakfast, and what to pack in his school bag. This learning object is one in a series of six objects.

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Interactive resource

My day: Jeneka: level 3

  • TLF-IDL8297

Help Jeneka by selecting the best texts for different parts of her day. Choose the correct text in a range of activities such as helping Jeneka get to school, and completing a project about Vincent Lingiari. This learning object is one in a series of six objects.

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