Being collaborative

  • Six Numbered Cubes
    problem
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    Six Numbered Cubes

    Age
    7 to 11
    Challenge level
    2 out of 3

    This task combines spatial awareness with addition and multiplication.

  • Different Deductions
    problem
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    Different Deductions

    Age
    7 to 11
    Challenge level
    2 out of 3

    There are lots of different methods to find out what the shapes are worth - how many can you find?

  • Seeing Rhombuses
    problem
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    Seeing Rhombuses

    Age
    7 to 11
    Challenge level
    2 out of 3

    Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a rhombus.

  • Quadrilaterals
    problem
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    Quadrilaterals

    Age
    7 to 11
    Challenge level
    3 out of 3

    How many DIFFERENT quadrilaterals can be made by joining the dots on the 8-point circle?

  • problem
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    Watch the Clock

    Age
    7 to 11
    Challenge level
    3 out of 3

    During the third hour after midnight the hands on a clock point in the same direction (so one hand is over the top of the other). At what time, to the nearest second, does this happen?

  • Fitted
    problem
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    Fitted

    Age
    7 to 11
    Challenge level
    3 out of 3

    Nine squares with side lengths 1, 4, 7, 8, 9, 10, 14, 15, and 18 cm can be fitted together to form a rectangle. What are the dimensions of the rectangle?

  • 5 on the clock
    problem
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    5 on the Clock

    Age
    7 to 11
    Challenge level
    3 out of 3

    On a digital clock showing 24 hour time, over a whole day, how many times does a 5 appear? Is it the same number for a 12 hour clock over a whole day?

  • Board Block Challenge
    problem
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    Board Block Challenge

    Age
    7 to 11
    Challenge level
    3 out of 3

    Choose the size of your pegboard and the shapes you can make. Can you work out the strategies needed to block your opponent?

  • Curious number
    problem
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    Curious Number

    Age
    7 to 11
    Challenge level
    3 out of 3

    Can you order the digits from 1-3 to make a number which is divisible by 3 so when the last digit is removed it becomes a 2-figure number divisible by 2, and so on?

  • Finding 3D Stacks
    problem
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    Finding 3D Stacks

    Age
    7 to 11
    Challenge level
    3 out of 3

    Can you find a way of counting the spheres in these arrangements?