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Lesson 14 of 15
  • Year 1

Use a part-part-whole model to represent partitioning into more than two parts

I can use a part-part-whole model to represent a whole partitioned into more than two parts.

Lesson 14 of 15
New
New
  • Year 1

Use a part-part-whole model to represent partitioning into more than two parts

I can use a part-part-whole model to represent a whole partitioned into more than two parts.

Lesson details

Key learning points

  1. Draw attention to the fact that each part is smaller than the whole.
  2. Partition objects into 3 parts in as many ways as possible.

Keywords

  • Whole - All of something. Complete.

  • Part - A piece of a whole.

  • Partition - To break up a whole into parts.

  • Part-part-whole model - A pictorial representation that shows the whole and its parts.

Common misconception

Children may not realise that a whole can be split in different ways and into more than two parts.

Provide lots of practical partitioning and recombining of objects and record on a part-part-whole model in different orientations.


To help you plan your year 1 maths lesson on: Use a part-part-whole model to represent partitioning into more than two parts, download all teaching resources for free and adapt to suit your pupils' needs...

Use a variety of part-part-whole models with different numbers of parts and in different orientations for children to practise partitioning and combining numbers. You can make part-part-whole models from paper plates joined with pieces of string.
Teacher tip

Equipment

Licence

This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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Prior knowledge starter quiz

Download quiz pdf

6 Questions

Q1.
Is 10 the whole or a part?

An image in a quiz
Correct answer: whole
part

Q2.
Is 4 the whole or a part?

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whole
Correct answer: part

Q3.
What is the whole?

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3
4
Correct answer: 6
9

Q4.
What is the missing part?

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2
4
Correct answer: 6
10

Q5.
Which part-whole model is showing Sam’s counters correctly partitioned?

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Correct Answer: An image in a quiz
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An image in a quiz
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Q6.
Which part-whole model is showing Jun's counters correctly partitioned?

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Correct Answer: An image in a quiz
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Assessment exit quiz

Download quiz pdf

6 Questions

Q1.
Jun thinks that the whole will be bigger than the parts. Is he right?

Correct answer: Yes
No

Q2.
How many cubes are in the whole?

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2
4
6
Correct answer: 8

Q3.
How many cubes are in each part?

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Correct answer: 1
2
3

Q4.
Sam thinks the whole will be 8. Is this correct?

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Yes
Correct answer: No

Q5.
Jun thinks the whole will be 8. Is this correct?

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Correct answer: Yes
No

Q6.
Sam has 3 counters, Jun has 2 counters and Alex has 1 counter. Which part-whole model is showing their counters?

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Correct Answer: An image in a quiz
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An image in a quiz