Mathematics

Counting back in fives and measuring

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 ordering activity.

Curriculum indicatorค 1.1 ป.2/2

Play Host 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.

01
Put the numbers in order from smallest to largest.
- 18
- 28
- 38
- 48
Read the explanation
Compare the tens first, then the ones.
02
Put the numbers in order, decreasing by 5.
- 10
- 15
- 20
- 25
Read the explanation
Count back in fives from twenty-five.
03
Put the days of the week in order.
- Monday
- Thursday
- Tuesday
- Wednesday
Read the explanation
Monday through to Thursday in order.

Before you play

Game teaching guide

What children will practise

Order numbers going up in tens and down in fives, order the days of the week, and put the steps of measuring with a ruler in the right order (indicator ค 2.1 ป.2/2).

What's in the worksheet

4 ordering questions - 18, 28, 38, 48 smallest to largest - 25, 20, 15, 10 counting back in fives - Monday, Tuesday, Wednesday, Thursday - Lay the ruler straight, start at the 0, read the number at the far end, write it down with its unit

How to use it in class

Use in a lesson where pupils measure real objects: play for 5 minutes first, then have them follow the Q4 steps with their own pencil. - Team mode works well; for the steps question, ask teams why you must start at 0 - For counting back in fives, count down aloud together - Play it linked to the class to record results in the mark book

Common sticking points

- In the measuring steps, putting "start at the 0" before "lay the ruler straight"; both sound reasonable. Hear pupils' reasons, then explain you line the ruler up first and then set 0 at the end. The game accepts only one order; if a pupil swaps the first two steps and can explain why, count the understanding as sound - Ordering the counting-back question smallest first, out of habit from Q1 - When measuring for real, pupils often start at the edge of the ruler instead of the 0. Show that some rulers have a gap before 0