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Squares, probability and ratio

Mathematics

Squares, probability and ratio

An AR classroom game for Grade 6. Learners can aim with their hands at the camera or play by tapping the screen.

This set has 4 rounds in an interactive sorting activity.

Curriculum indicatorค 1.1 ป.6/2

PlayHost a classroom

A look before you play

Sample questions

A few real prompts from the game to help you choose an activity for your class.

  1. Sort the numbers into groups.

    Sort into

    • perfect square
    • not
    • 64
    • 50
    • 100
    • 90
    Read the explanation

    A perfect square has an exact square root.

  2. Sort the events into groups.

    Sort into

    • more likely than not
    • less likely than not
    • rolling more than 1
    • rolling a 6
    • tossing a coin and getting heads or tails
    • rolling a 1 twice in a row
    Read the explanation

    Compare each probability with a half.

  3. Sort the sums into groups.

    Sort into

    • ratio
    • percentage
    • shared in the ratio 2 : 3
    • 25% off
    • mixed 1 : 4
    • scored 90 out of 100
    Read the explanation

    A ratio compares two quantities; a percentage compares with a hundred.

Before you play

Game teaching guide

What children will practise

Classify perfect squares, events more or less likely than a half, ratio versus percentage problems (linked to ค 1.1 ป.6/2), and integers versus non-integers.

What's in the worksheet

4 sorting rounds, dragging 4 cards into 2 groups - Perfect square or not: 64, 50, 100, 90 - More or less likely than a half: rolling more than 1, rolling a 6, two 1s in a row, heads or tails - Ratio or percentage: shared 2 : 3, 25% off, mixed 1 : 4, 90 out of 100 - Integer or not: -8, 2.5, 0, 1/3

How to use it in class

Use as a short follow-on to CAT-02 or before probability; about 4-5 minutes. - Play in teams; in round 2 have teams count the faces that make the event happen, e.g. more than 1 is 5 faces out of 6 - In round 1, find which number times itself makes 64 and 100 - In round 4, ask whether 0 is an integer to start a discussion - Some items extend beyond primary indicators. Use them for discussion or preparation for Grade 7, not to judge attainment - Play it linked to the class to record results in the mark book.

Common sticking points

- Round 4: 0 may go in the non-integer group because children think zero is nothing - Round 2: children may be unsure whether two 1s in a row or a single 6 is less likely, but both belong under less than half - Round 1: 50 and 90 may go with the perfect squares because they end in 0 like 100

Play together first, then build on it with a worksheet for the same level.

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