Being collaborative

  • Digit Discovery
    problem

    Digit discovery

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

    Here is an interesting property about two sets of digits. Can you work out what the digits might be?

  • Seeing Rhombuses
    problem

    Seeing rhombuses

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

    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.

  • Seeing Parallelograms
    problem

    Seeing parallelograms

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

    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 parallelogram.

  • Rhombus It
    problem

    Rhombus it

    Age
    11 to 16
    Challenge level
    filled star filled star empty star

    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.

  • What numbers can we make now?
    problem

    What numbers can we make now?

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

    Imagine we have four bags containing numbers from a sequence. What numbers can we make now?

  • More Less is More
    problem

    More less is more

    Age
    7 to 14
    Challenge level
    filled star empty star empty star
    In each of these games, you will need a little bit of luck, and your knowledge of place value to develop a winning strategy.
  • An Easy Way to Multiply by 10?
    problem

    An easy way to multiply by 10?

    Age
    7 to 11
    Challenge level
    filled star empty star empty star
    Do you agree with Badger's statements? Is Badger's reasoning 'watertight'? Why or why not?
  • Three neighbours
    problem

    Three neighbours

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

    Take three consecutive numbers and add them together. What do you notice?

  • Dicey Array
    game
    Favourite

    Dicey array

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

    Watch the video of this game being played. Can you work out the rules? Which dice totals are good to get, and why?

  • Equivalent Pairs
    problem

    Equivalent pairs

    Age
    5 to 7
    Challenge level
    filled star empty star empty star
    Can you match pairs of cards which show the same amount?