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Positive and negative numbers

Mathematics

Positive and negative numbers

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 6 questions in an interactive multiple choice activity.

Curriculum indicatorค 1.1 ป.6/1

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. -3 + 5 = ?

    • 2
    • 8
    • -8
    Read the explanation

    Start at minus three and move five to the right - you land on two.

  2. 4 - 7 = ?

    • 11
    • -3
    • 3
    Read the explanation

    Start at four and move seven to the left - you pass zero by three and land on minus three.

  3. -2 - 3 = ?

    • -1
    • 1
    • -5
    Read the explanation

    From minus two, move three further left and you reach minus five.

Before you play

Game teaching guide

What children will practise

Add and subtract positive and negative integers by moving along a number line, compare negative numbers, and apply this to temperature.

What's in the worksheet

6 questions, multiple choice with 3 options - -3 + 5 (2) - 4 - 7 (-3) - -2 - 3 (-5) - Smallest of -2, -9 and -5 (-9) - -5 degrees rising by 8 (3)

How to use it in class

Use as enrichment after introducing negatives with a thermometer or basement lift floors; about 5 minutes. - Put a -10 to 10 number line on the board or floor and have a team member walk it before answering - If many miss Q5, ask which is colder, minus 9 or minus 2 degrees - Use a thermometer picture for Q6 - Play it linked to the class to record results in the mark book.

Common sticking points

- Q5: choosing -2 because 2 is smaller than 9 - Q2: answering 3 by subtracting the smaller from the larger - Q3: -1 from thinking the two minuses cancel - Q6: 13 from 5 + 8, ignoring the minus sign

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

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