Year 3 Explaining, convincing and proving

  • Strike it out
    problem
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    Strike It Out

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

    Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.

  • Square Corners
    problem
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    Square Corners

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

    What is the greatest number of counters you can place on the grid below without four of them lying at the corners of a square?

  • What Do you Need?
    problem
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    What Do You Need?

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

    Four of these clues are needed to find the chosen number on this grid and four are true but do nothing to help in finding the number. Can you sort out the clues and find the number?

  • Magic Vs
    problem
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    Magic Vs

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

    Can you put the numbers 1-5 in the V shape so that both 'arms' have the same total?

  • How do you do it?
    problem
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    How Do You Do It?

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

    This group activity will encourage you to share calculation strategies and to think about which strategy might be the most efficient.

  • problem
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    The Car That Passes

    Age
    7 to 11
    Challenge level
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    What statements can you make about the car that passes the school gates at 11am on Monday? How will you come up with statements and test your ideas?

  • Journeys in Numberland
    problem
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    Journeys in Numberland

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

    Tom and Ben visited Numberland. Use the maps to work out the number of points each of their routes scores.

  • problem
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    The Domesday Project

    Age
    7 to 11
    Challenge level
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    Take a look at these data collected by children in 1986 as part of the Domesday Project. What do they tell you? What do you think about the way they are presented?

  • Going for Gold
    problem
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    Going for Gold

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

    Looking at the Olympic Medal table, can you see how the data is organised? Could the results be presented differently to give another nation the top place?

  • A yellow bag containing some threes.
    problem
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    Play to 37

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

    In this game the winner is the first to make the total 37. Is this a fair game?

  • Overlaps
    problem
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    Overlaps

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

    What does the overlap of these two shapes look like? Try picturing it in your head and then use some cut-out shapes to test your prediction.

  • Got It
    problem
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    Got It

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

    A game for two people, or play online. Given a target number, say 23, and a range of numbers to choose from, say 1-4, players take it in turns to add to the running total to hit their target.

  • problem
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    Inky Cube

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

    This cube has ink on each face which leaves marks on paper as it is rolled. Can you work out what is on each face and the route it has taken?