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Sorting shapes and numbers

Mathematics

Sorting shapes and numbers

An AR classroom game for Grade 2. 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 2.2 ป.2/1

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. Sort the shapes into groups.

    Sort into

    • all sides equal
    • sides not equal
    • square
    • rectangle
    • equilateral triangle
    • right-angled triangle
    Read the explanation

    Shapes with all sides equal, and shapes without.

  2. Sort the numbers into groups.

    Sort into

    • in the 2 times table
    • not in the 2 times table
    • 6
    • 7
    • 10
    • 15
    Read the explanation

    Numbers in the two times table are the even numbers.

  3. Sort the numbers into groups.

    Sort into

    • less than half a hundred
    • more than half a hundred
    • 32
    • 68
    • 45
    • 81
    Read the explanation

    Compare with fifty, which is half of a hundred.

Before you play

Game teaching guide

What children will practise

Classify polygons by the length of their sides (indicator ค 2.2 ป.2/1), and sort numbers by a rule: in the 2 times table or not, above or below 50, and sums that make exactly 10.

What's in the worksheet

4 sorting questions, drag items into two boxes - A square and an equilateral triangle go in "all sides equal" - 6 and 10 are in the 2 times table; 7 and 15 are not - 32 and 45 are less than half a hundred; 68 and 81 are more - 5 + 5 and 7 + 3 make exactly 10; 4 + 5 and 6 + 5 do not

How to use it in class

Use as an end-of-lesson review, 6-8 minutes. In team mode, pupils take turns dragging one card each. - For the shapes question, have shape cards or a ruler ready so pupils can check the sides - For half a hundred, first ask "What is half of a hundred?" and settle on 50 before sorting - Afterwards, ask pupils to find classroom objects whose sides are all equal - Play it linked to the class to record results in the mark book

Common sticking points

- Putting the rectangle in "all sides equal" because opposite sides match. Stress that every side must be the same length - Unsure about the right-angled triangle since there is no picture. Draw one on the board and explain that "sides not equal" means not all sides equal: a right-angled triangle can have two equal sides, but never all three - "Half a hundred" is unfamiliar wording; some compare with 100 instead of 50 and misplace 68

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

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Sorting shapes and numbers — AR game for Grade 2 | Krufahda