Conjecturing and generalising

  • More Number Pyramids
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    More Number Pyramids

    Age
    11 to 14
    Challenge level
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    When number pyramids have a sequence on the bottom layer, some interesting patterns emerge...

  • Shear Magic
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    Shear Magic

    Age
    11 to 14
    Challenge level
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    Explore the area of families of parallelograms and triangles. Can you find rules to work out the areas?

  • Seven Squares - Group-worthy Task
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    Seven Squares - Group-Worthy Task

    Age
    11 to 14
    Challenge level
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    Choose a couple of the sequences. Try to picture how to make the next, and the next, and the next... Can you describe your reasoning?

  • Coordinate Patterns
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    Coordinate Patterns

    Age
    11 to 14
    Challenge level
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    Charlie and Alison have been drawing patterns on coordinate grids. Can you picture where the patterns lead?

  • Stars
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    Stars

    Age
    11 to 14
    Challenge level
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    Can you work out what step size to take to ensure you visit all the dots on the circle?

  • Subtended angles
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    Subtended Angles

    Age
    11 to 14
    Challenge level
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    What is the relationship between the angle at the centre and the angles at the circumference, for angles which stand on the same arc? Can you prove it?

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    Right Angles

    Age
    11 to 14
    Challenge level
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    Can you make a right-angled triangle on this peg-board by joining up three points round the edge?

  • Two's company
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    Two's Company

    Age
    11 to 14
    Challenge level
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    Seven balls are shaken. You win if the two blue balls end up touching. What is the probability of winning?

  • Cosy corner
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    Cosy Corner

    Age
    11 to 14
    Challenge level
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    Six balls are shaken. You win if at least one red ball ends in a corner. What is the probability of winning?

  • ...on the wall
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    ...on the Wall

    Age
    11 to 14
    Challenge level
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    Explore the effect of reflecting in two intersecting mirror lines.