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Steps of reasoning

Mathematics

Steps of reasoning

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 ordering activity.

Curriculum indicatorค 1.1 ป.5/6

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. Put the steps of finding a triangle's area in order.

    • divide by 2
    • measure the base
    • measure the height
    • multiply them
    Read the explanation

    You need both the base and the height before you can multiply and halve.

  2. Put the numbers in order from smallest to largest.

    • 0.25
    • 0.5
    • 1/3
    • 2/3
    Read the explanation

    Put them all in the same form before comparing.

  3. Put the steps of finding a percentage in order.

    • divide by 100
    • give the answer with its unit
    • multiply by the whole number
    • write it as a fraction
    Read the explanation

    Multiplying before dividing keeps the numbers easier.

Before you play

Game teaching guide

What children will practise

Put maths procedures in order (finding a triangle's area, finding a percentage), order numbers written as both decimals and fractions, and order length units from smallest to largest.

What's in the worksheet

4 ordering rounds of 4 cards - Steps for a triangle's area: measure the base, measure the height, multiply, divide by 2 - Smallest to largest: 0.25, 1/3, 0.5, 2/3 - Steps for a percentage: write it as a fraction, multiply by the whole number, divide by 100, give the unit - Units smallest to largest: millimetre, centimetre, metre, kilometre

How to use it in class

Use after triangle area and percentages, to get children to put procedures into words; about 5 minutes. - Play in teams and have each team read its order aloud after every round - In rounds 1 and 3, if a team's order differs from the key but makes sense, accept it in discussion and explain the game fixes one order - For round 2, convert 1/3 and 2/3 to about 0.33 and 0.67 before ordering - Play it linked to the class to record results in the mark book.

Common sticking points

- Round 2: 1/3 may be placed before 0.25 because 3 looks smaller than 25; convert to decimals first - Round 3: children who divide by 100 before multiplying are marked wrong although the answer is the same - Round 1: measuring base and height can be done in either order, so children may lose marks without a reason

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

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