Exploring and noticing

  • Property chart
    problem
    Favourite

    Property Chart

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

    A game in which players take it in turns to try to draw quadrilaterals (or triangles) with particular properties. Is it possible to fill the game grid?

  • Two's company
    problem
    Favourite

    Two's Company

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

    Seven balls are shaken. You win if the two blue balls end up touching. What is the probability of winning?

  • Cosy corner
    problem
    Favourite

    Cosy Corner

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

    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
    Favourite

    Mixing Paints

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

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

  • Speeding up, slowing down
    problem
    Favourite

    Speeding Up, Slowing Down

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

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

  • Route to infinity
    problem
    Favourite

    Route to Infinity

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

    Can you describe this route to infinity? Where will the arrows take you next?

  • Twisting and Turning
    problem
    Favourite

    Twisting and Turning

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

    Take a look at the video and try to find a sequence of moves that will untangle the ropes.

  • Non-Transitive Dice
    problem
    Favourite

    Non-Transitive Dice

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

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

  • What's the weather like?
    problem
    Favourite

    What's the Weather Like?

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

    With access to weather station data, what interesting questions can you investigate?

  • Unequal Averages
    problem
    Favourite

    Unequal Averages

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

    Play around with sets of five numbers and see what you can discover about different types of average...