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Solids, formulas and negative numbers

Mathematics

Solids, formulas 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 4 rounds in an interactive sorting activity.

Curriculum indicatorค 2.1 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 solids into groups.

    Sort into

    • all flat faces
    • has a curved surface
    • cube
    • sphere
    • pyramid
    • cylinder
    Read the explanation

    Solids with only flat faces, and solids with a curved surface.

  2. Sort the formulas into groups.

    Sort into

    • for two-dimensional shapes
    • for three-dimensional solids
    • base × height ÷ 2
    • width × length × height
    • 2 × pi × radius
    • side × side × side
    Read the explanation

    Formulas for two-dimensional shapes and formulas for three-dimensional ones.

  3. Sort the numbers into groups.

    Sort into

    • positive
    • negative
    • 12
    • -12
    • 0.5
    • -0.5
    Read the explanation

    Negative numbers sit to the left of zero on the number line.

Before you play

Game teaching guide

What children will practise

Classify solids with all flat faces versus a curved surface (ค 2.2 ป.6/3), 2D versus 3D formulas, positive versus negative numbers, and probability versus statistics questions.

What's in the worksheet

4 sorting rounds, dragging 4 cards into 2 groups - All flat faces or a curved surface: cube, sphere, pyramid, cylinder - 2D or 3D formula: base × height ÷ 2, width × length × height, 2 × pi × radius, side × side × side - Positive or negative: 12, -12, 0.5, -0.5 - Probability or statistics: chance of a 6, mean of scores, chance of a red ball, mode of data

How to use it in class

Use as the last review game of the year across several units; about 5 minutes. - Play in teams with real objects (a box, a ball, a can) to handle for round 1 - In round 2, have teams say what each formula finds before deciding 2D or 3D - In round 4, point out that the word chance signals probability - 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 1: the cylinder may go in the all-flat group because it has 2 flat circular faces - Round 2: 2 × pi × radius may go under 3D because the circle formula is unfamiliar - Round 3: -0.5 may be thought positive because it is close to zero

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

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