Working systematically

  • Perimeter Challenge
    problem
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    Perimeter Challenge

    Age
    11 to 14
    Challenge level
    1 out of 3

    Can you deduce the perimeters of the shapes from the information given?

  • About Average
    problem
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    About Average

    Age
    11 to 14
    Challenge level
    1 out of 3

    Can you find sets of numbers which satisfy each of our mean, median, mode and range conditions?

  • Half a minute
    problem
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    Half a Minute

    Age
    11 to 14
    Challenge level
    1 out of 3

    Anna, Ben and Charlie have been estimating 30 seconds. Who is the best?

  • Making a difference
    problem
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    Making a Difference

    Age
    11 to 14
    Challenge level
    1 out of 3

    How many different differences can you make?

  • Completing Quadrilaterals
    problem
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    Completing Quadrilaterals

    Age
    11 to 14
    Challenge level
    1 out of 3

    We started drawing some quadrilaterals - can you complete them?

  • Growing Surprises
    problem
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    Growing Surprises

    Age
    11 to 14
    Challenge level
    1 out of 3

    Can you find the connections between linear and quadratic patterns?

  • Gabriel's Problem
    problem
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    Gabriel's Problem

    Age
    11 to 14
    Challenge level
    1 out of 3

    Gabriel multiplied together some numbers and then erased them. Can you figure out where each number was?

  • Guess \my Quad
    problem
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    Guess My Quad

    Age
    11 to 14
    Challenge level
    1 out of 3

    How many questions do you need to identify my quadrilateral?

  • Counting Factors
    problem
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    Counting Factors

    Age
    11 to 14
    Challenge level
    2 out of 3

    Is there an efficient way to work out how many factors a large number has?

  • Where can we visit?
    problem
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    Where Can We Visit?

    Age
    11 to 14
    Challenge level
    2 out of 3

    Charlie and Abi put a counter on 42. They wondered if they could visit all the other numbers on their 1-100 board, moving the counter using just these two operations: ×2 and -5. What do you think?