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Sorting numbers and shapes

Mathematics

Sorting numbers and shapes

An AR classroom game for Grade 4. 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.4/6

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

    • prime
    • composite
    • 2
    • 4
    • 13
    • 20
    Read the explanation

    A prime has two factors; a composite number has more.

  2. Sort the shapes into groups.

    Sort into

    • right angles all round
    • no right angle
    • square
    • equilateral triangle
    • rectangle
    • rhombus
    Read the explanation

    Shapes with right angles at every corner, and shapes with none.

  3. Sort the decimals into groups.

    Sort into

    • less than 0.5
    • more than 0.5
    • 0.2
    • 0.8
    • 0.4
    • 0.9
    Read the explanation

    Compare with a half, which is nought point five.

Before you play

Game teaching guide

What children will practise

Sort prime from composite numbers, shapes with all right angles from those with none (indicator ค 2.2 ป.4/1), decimals above or below 0.5 (ค 1.1 ป.4/6), and units of time from units of length.

What's in the worksheet

4 sorting questions with 2 boxes each - 2 and 13 are prime; 4 and 20 are composite - Square and rectangle have right angles all round; equilateral triangle and rhombus have none - 0.2 and 0.4 are less than 0.5; 0.8 and 0.9 are more - Hour and minute are units of time; metre and kilometre are units of length

How to use it in class

Use for mid-year P4 review, 5-6 minutes, team mode. - 2 is prime; mention that it is the only even prime - For shapes, have teams draw a slanted rhombus and test its corners with a paper right angle - For decimals, use a 0 to 1 number line in tenths - Play it linked to the class to record results in the mark book

Common sticking points

- Putting 2 under composite because it is even. Its only factors are 1 and 2 - Pupils picturing an upright, square-like rhombus put it under right angles. Draw a slanted one. If a pupil points out that a square is also a rhombus, they are right; the game means a rhombus that is not a square - Putting 0.4 above 0.5. Point to both on a number line

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

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Sorting numbers and shapes — AR game for Grade 4 | Krufahda