Pairs that make a number

What it is about

Decompose numbers to 10 in more than one way.

Kindergarten · 5–6 years · 30 challenges

Before you begin

• Informal counting, spoken quantity words and experience with objects.

What the class will do

1. Choose and explain · 30 challenges

   Pairs that make a number

   Decompose numbers to 10 in more than one way.

Using it in class

Read all words and number expressions aloud. Use a fixed whole set of at most ten counters, split into two labeled parts. Include an empty part when stated. Children may direct a partner or draw dots. Do not race. Ask how both parts account for every object in the whole.

Give everyone time to think and discuss before one pupil acts at the board. The class explains and confirms together; hints and explanations stay until you move on.

Use an up-to-date browser on a computer connected to a whiteboard or shared display. Touch, mouse and keyboard; optional audio and reduced motion. No pupil accounts or personal devices.

Choose from 5 challenges up to the full activity. Discussion determines the duration: you set the pace.