Working systematically

  • problem
    Favourite

    Oh! Harry!

    Age
    7 to 11
    Challenge level
    2 out of 3

    A group of children are using measuring cylinders but they lose the labels. Can you help relabel them?

  • Light the Lights Again
    problem
    Favourite

    Light the Lights Again

    Age
    7 to 11
    Challenge level
    2 out of 3

    Each light in this interactivity turns on according to a rule. What happens when you enter different numbers? Can you work out the rule for each light?

  • problem
    Favourite

    This Pied Piper of Hamelin

    Age
    7 to 11
    Challenge level
    2 out of 3

    Investigate the different numbers of people and rats there could have been if you know how many legs there are altogether!

  • problem
    Favourite

    How Much Did It Cost?

    Age
    7 to 11
    Challenge level
    2 out of 3

    Use your logical thinking skills to deduce how much Dan's crisps and ice cream cost altogether.

  • Through the Window
    problem
    Favourite

    Through the Window

    Age
    7 to 11
    Challenge level
    2 out of 3

    My local DIY shop calculates the price of its windows according to the area of glass and the length of frame used. Can you work out how they arrived at these prices?

  • Six Numbered Cubes
    problem
    Favourite

    Six Numbered Cubes

    Age
    7 to 11
    Challenge level
    2 out of 3

    This task combines spatial awareness with addition and multiplication.

  • A4 Fraction Addition
    problem
    Favourite

    A4 Fraction Addition

    Age
    7 to 11
    Challenge level
    2 out of 3

    Try adding fractions using A4 paper.

  • Different Deductions
    problem
    Favourite

    Different Deductions

    Age
    7 to 11
    Challenge level
    2 out of 3

    There are lots of different methods to find out what the shapes are worth - how many can you find?

  • Seeing Rhombuses
    problem
    Favourite

    Seeing Rhombuses

    Age
    7 to 11
    Challenge level
    2 out of 3

    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.

  • Quadrilaterals
    problem
    Favourite

    Quadrilaterals

    Age
    7 to 11
    Challenge level
    3 out of 3

    How many DIFFERENT quadrilaterals can be made by joining the dots on the 8-point circle?