Being collaborative

  • Ten Hidden Squares
    problem

    Ten hidden squares

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

    These points all mark the vertices (corners) of ten hidden squares. Can you find the 10 hidden squares?

  • Square It
    problem

    Square it

    Age
    11 to 16
    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 square.

  • problem

    Robot monsters

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

    Use these head, body and leg pieces to make Robot Monsters which are different heights.

  • How Big Are Classes 5, 6 and 7?
    problem

    How big are classes 5, 6 and 7?

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

    Use the two sets of data to find out how many children there are in Classes 5, 6 and 7.

  • Hundred Square Poster
    problem

    Hundred square

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

    A hundred square has been printed on both sides of a piece of paper. What is on the back of 100? 58? 23? 19?

  • Ben's Game
    problem

    Ben's game

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

    Ben, Jack and Emma passed counters to each other and ended with the same number of counters. How many did they start with?

  • The Tall Tower
    problem

    The tall tower

    Age
    5 to 7
    Challenge level
    filled star filled star filled star

    As you come down the ladders of the Tall Tower you collect useful spells. Which way should you go to collect the most spells?

  • Painted Cube
    problem

    Painted cube

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

    Imagine a large cube made from small red cubes being dropped into a pot of yellow paint. How many of the small cubes will have yellow paint on their faces?

  • Cut Nets
    problem

    Cut nets

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

    Each of the nets of nine solid shapes has been cut into two pieces. Can you see which pieces go together?

  • Peaches today, Peaches tomorrow...
    problem

    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?