Visualising and representing

  • The Tower of Hanoi - three wooden poles, with several coloured rings of decreasing sizes on the middle pole.
    problem
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    Tower of Hanoi

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    The Tower of Hanoi is an ancient mathematical challenge. Working on the building blocks may help you to explain the patterns you notice.

  • Fill Me Up
    problem
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    Fill Me Up

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    Can you sketch graphs to show how the height of water changes in different containers as they are filled?

  • Seven Squares
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    Seven Squares

    Age
    11 to 14
    Challenge level
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    Watch these videos to see how Phoebe, Alice and Luke chose to draw 7 squares. How would they draw 100?

  • A blue patchwork quilt draped over a white sofa.
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    Alison's Quilt

    Age
    11 to 14
    Challenge level
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    Nine squares are fitted together to form a rectangle. Can you find its dimensions?

  • Non-Transitive Dice
    problem
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    Non-Transitive Dice

    Age
    11 to 14
    Challenge level
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    Alison and Charlie are playing a game. Charlie wants to go first so Alison lets him. Was that such a good idea?

  • Triathlon and Fitness
    problem
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    Triathlon and Fitness

    Age
    11 to 14
    Challenge level
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    The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories?

  • Always a multiple?
    problem
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    Always a Multiple?

    Age
    11 to 14
    Challenge level
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    Think of a two digit number, reverse the digits, and add the numbers together. Something special happens...

  • Quadrilaterals in a Square
    problem
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    Quadrilaterals in a Square

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    What's special about the area of quadrilaterals drawn in a square?

  • Garden Shed
    problem
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    Garden Shed

    Age
    11 to 14
    Challenge level
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    Can you minimise the amount of wood needed to build the roof of my garden shed?

  • Impossibilities
    problem
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    Impossibilities

    Age
    11 to 14
    Challenge level
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    Just because a problem is impossible doesn't mean it's difficult...