Counting

  • Card Trick 2
    problem

    Card Trick 2

    Age
    11 to 14
    Challenge level
    2 out of 3
    Can you explain how this card trick works?
  • Alien Counting
    problem

    Alien Counting

    Age
    7 to 11
    Challenge level
    2 out of 3
    Investigate the different ways these aliens count in this challenge. You could start by thinking about how each of them would write our number 7.
  • Painting Cubes
    problem

    Painting Cubes

    Age
    11 to 14
    Challenge level
    3 out of 3
    Imagine you have six different colours of paint. You paint a cube using a different colour for each of the six faces. How many different cubes can be painted using the same set of six colours?
  • Stone Age Counting
    problem

    Stone Age Counting

    Age
    5 to 7
    Challenge level
    1 out of 3

    What could these drawings, found in a cave in Spain, represent?

  • game

    Incey Wincey Spider for Two

    Age
    5 to 7
    Challenge level
    1 out of 3

    Incey Wincey Spider game for an adult and child. Will Incey get to the top of the drainpipe?

  • Unexpected Ordering
    problem

    Unexpected Ordering

    Age
    5 to 7
    Challenge level
    1 out of 3
    Watch the video of Fran re-ordering these number cards. What do you notice? Try it for yourself. What happens?
  • Mrs Beeswax
    problem

    Mrs Beeswax

    Age
    5 to 7
    Challenge level
    2 out of 3

    In how many ways could Mrs Beeswax put ten coins into her three puddings so that each pudding ended up with at least two coins?

  • Find a Path
    problem

    Find a Path

    Age
    5 to 7
    Challenge level
    2 out of 3
    Can you find a path from a number at the top of this network to the bottom which goes through each number from 1 to 9 once and once only?
  • Queue
    problem

    Queue

    Age
    5 to 7
    Challenge level
    2 out of 3
    25 students are queuing in a straight line. How many are there between Julia and Jenny?
  • Poker Bingo
    game

    Poker Bingo

    Age
    5 to 11
    Challenge level
    1 out of 3

    A game played with a standard pack of cards.