Being resourceful

  • Cosy corner
    problem
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    Cosy Corner

    Age
    11 to 14
    Challenge level
    2 out of 3

    Six balls are shaken. You win if at least one red ball ends in a corner. What is the probability of winning?

  • Mixing Paints
    problem
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    Mixing Paints

    Age
    11 to 14
    Challenge level
    2 out of 3

    Can you work out how to produce different shades of pink paint?

  • Speeding up, slowing down
    problem
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    Speeding Up, Slowing Down

    Age
    11 to 14
    Challenge level
    2 out of 3

    Experiment with the interactivity of "rolling" regular polygons, and explore how the different positions of the dot affects its speed at each stage.

  • Factors and Multiples Puzzle
    problem
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    Factors and Multiples Puzzle

    Age
    11 to 14
    Challenge level
    2 out of 3

    Using your knowledge of the properties of numbers, can you fill all the squares on the board?

  • ...on the wall
    problem
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    ...on the Wall

    Age
    11 to 14
    Challenge level
    2 out of 3

    Explore the effect of reflecting in two intersecting mirror lines.

  • Triangle Numbers
    problem
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    Triangle Numbers

    Age
    11 to 14
    Challenge level
    2 out of 3

    Take a look at the multiplication square. The first eleven triangle numbers have been identified. Can you see a pattern? Does the pattern continue?

  • Weights
    problem
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    Weights

    Age
    11 to 14
    Challenge level
    2 out of 3

    Different combinations of the weights available allow you to make different totals. Which totals can you make?

  • All in a jumble
    problem
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    All in a Jumble

    Age
    11 to 14
    Challenge level
    2 out of 3

    My measurements have got all jumbled up! Swap them around and see if you can find a combination where every measurement is valid.

  • Thousands and Millions
    problem
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    Thousands and Millions

    Age
    11 to 14
    Challenge level
    2 out of 3

    Here's a chance to work with large numbers...

  • Opposite vertices
    problem
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    Opposite Vertices

    Age
    11 to 14
    Challenge level
    2 out of 3

    Can you recreate squares and rhombuses if you are only given a side or a diagonal?