Being collaborative

  • Constructing Triangles
    problem
    Favourite

    Constructing Triangles

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

    Generate three random numbers to determine the side lengths of a triangle. What triangles can you draw?

  • Hidden Squares
    problem
    Favourite

    Hidden Squares

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

    Can you find the squares hidden on these coordinate grids?

  • Fence it
    problem
    Favourite

    Fence It

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

    If you have only 40 metres of fencing available, what is the maximum area of land you can fence off?

  • Up, down, flying around
    game
    Favourite

    Up, Down, Flying Around

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

    Play this game to learn about adding and subtracting positive and negative numbers

  • Add to 200
    problem
    Favourite

    Add to 200

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

    By selecting digits for an addition grid, what targets can you make?

  • Half a minute
    problem
    Favourite

    Half a Minute

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

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

  • Transformation Game
    game
    Favourite

    Transformation Game

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

    Why not challenge a friend to play this transformation game?

  • Coordinate Patterns
    problem
    Favourite

    Coordinate Patterns

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

    Charlie and Alison have been drawing patterns on coordinate grids. Can you picture where the patterns lead?

  • Peaches today, Peaches tomorrow...
    problem
    Favourite

    Peaches Today, Peaches Tomorrow...

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

    A monkey with peaches, keeps a fraction of them each day, gives the rest away, and then eats one. How long can his peaches last?

  • Shapely pairs
    problem
    Favourite

    Shapely Pairs

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

    A game in which players take it in turns to turn up two cards. If they can draw a triangle which satisfies both properties they win the pair of cards. And a few challenging questions to follow...