Parts make a whole

What it is about

Find number bonds to 10 and 20 using missing parts and the equals sign.

Year 1 · 5–6 years · 30 challenges

Before you begin

• Count small sets and compare familiar objects.

What the class will do

1. Choose and explain · 30 challenges

   Parts make a whole

   Find number bonds to 10 and 20 using missing parts and the equals sign.

Using it in class

Teacher reads symbols aloud and models parts with counters where requested. Equal means the same amount on both sides, not just an instruction to calculate. Teacher supplies any ten-frames or covered groups; the screen supplies only the pictured counter groups explicitly referenced.

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.