Relate finding half of a number to halving and doubling
I can explain how finding half of a number relates to halving and doubling.
Relate finding half of a number to halving and doubling
I can explain how finding half of a number relates to halving and doubling.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- To find half of a number you split it into 2 equal parts
- Use knowledge of doubles and halves to find half of a number
- If you double the half you will end up with the whole number
Keywords
Double - To become twice as many.
Half - To divide into 2 equal parts.
Common misconception
Children may find it difficult to find the whole when they are told the size of the half and may try to find half of the half.
Use a bar model representation to help children see the structure of double and half. Use gesture, colour and/or circling when discussing what each part of the bar model represents.
To help you plan your year 2 maths lesson on: Relate finding half of a number to halving and doubling, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 2 maths lesson on: Relate finding half of a number to halving and doubling, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 1 maths lessons from the Fractions: identify equal parts and be familiar with halves, thirds and quarters unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
Licence
Starter quiz
6 Questions
2 + 2 = 4 -
Double 2 is 4
8 = 4 + 4 -
Double 4 is 8
3 + 3 = 6 -
Double 3 is 6
10 = 5 + 5 -
Double 5 is 10
$$ \frac{1}{2} $$ -
is one of two equal parts.
$$ \frac{1}{3} $$ -
is one of three equal parts.
$$ \frac{1}{4} $$ -
is one of four equal parts.

A -
$$ \frac{1}{4} $$
B -
$$ \frac{1}{2} $$
C -
$$ \frac{1}{3} $$

$$ \frac{1}{2} $$ of 6 = -
3
$$ \frac{1}{2} $$ of 12 = -
6
$$ \frac{1}{2} $$ of 16 = -
8
$$ \frac{1}{2} $$ of 14 = -
7
$$ \frac{1}{2} $$ of 8 = -
4
Exit quiz
6 Questions
Double 10 is -
20
Double 6 is -
12
Double 7 is -
14
Double 8 is -
16
Double 9 is -
18



Double 3 is 6 -
Half of 6 is 3
Double 6 is 12 -
Half of 12 is 6
Double 5 is 10 -
Half of 10 is 5
Double 10 is 20 -
Half of 20 is 10