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Sorting fractions and decimals

Mathematics

Sorting fractions and decimals

An AR classroom game for Grade 5. 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.5/3

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 fractions into groups.

    Sort into

    • proper fraction
    • improper fraction
    • 2/3
    • 5/3
    • 1/4
    • 7/4
    Read the explanation

    An improper fraction has a top bigger than its bottom, so it is more than one.

  2. Sort the numbers into groups.

    Sort into

    • divides exactly by 9
    • does not divide exactly by 9
    • 18
    • 25
    • 36
    • 40
    Read the explanation

    A number divides by nine exactly when the sum of all its digits does.

  3. Sort the units into groups.

    Sort into

    • units of area
    • units of volume
    • square metre
    • cubic metre
    • square centimetre
    • cubic centimetre
    Read the explanation

    Units of area are square; units of volume are cubic.

Before you play

Game teaching guide

What children will practise

Sort several Grade 5 ideas in one game: proper versus improper fractions, numbers that divide exactly by 9, units of area versus volume, and percentages below or above a half.

What's in the worksheet

4 sorting rounds, dragging 4 cards into 2 groups - Proper or improper fraction: 2/3, 5/3, 1/4, 7/4 - Divides exactly by 9 or not: 18, 25, 36, 40 - Unit of area or volume: square metre, cubic metre, square centimetre, cubic centimetre - Less or more than a half: 25%, 75%, 10%, 90%

How to use it in class

Use as a short end-of-lesson or pre-test review; about 4-5 minutes. - Play in teams on the projector, allowing 30 seconds of discussion per round before dragging - If round 2 goes badly, teach the digit-sum check (1 + 8 = 9, 3 + 6 = 9) and replay - For round 3, have children point at the floor (square metres) and a chalk box (cubic) to compare - Play it linked to the class to record results in the mark book.

Common sticking points

- Round 2: 25 or 40 may be misplaced by guessing; use the digit sums 2 + 5 = 7 and 4 + 0 = 4, neither divisible by 9 - Round 1: 5/3 and 7/4 may be seen as ordinary fractions because there is no whole number in front; ask whether the top is bigger than the bottom - Round 3: square and cubic get swapped because the unit names are long and similar; link square to flat and cubic to a box

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

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Sorting fractions and decimals — AR game for Grade 5 | Krufahda