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Lesson 12 of 15
Lesson 12 of 15
New
New
Explain what a part-part-whole model is
I can explain what a part-part-whole model is.
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Lesson details
Key learning points
- Use a variety of contexts to show the whole group partitioned into 2 clearly identifiable parts.
- Describe the parts and wholes in full sentences .
- A whole group of objects can be composed of 2 or more parts.
- Use a part-part-whole diagram to represent the two parts and the whole.
- Recognise the whole and the two parts are the same quantity.
Keywords
Whole - All of something. Complete.
Part - A piece of section of a whole.
Split - To break up a whole into parts.
Partition - To break up a whole into parts.
Part-part-whole - A pictorial representation that shows the whole and its parts.
Common misconception
When using the part-part-whole model, children may think that the whole is also one of the parts.
When using the part-part-whole model, move the objects out of the whole into the parts, and replace the whole with a number.
When using the part-part-whole model we need to clearly show that the whole is partitioned into the parts and is not included as one of the parts. For each example, repeatedly move the objects back and forth to represent splitting /combining of the parts
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).
Prior knowledge starter quiz
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6 Questions
Q1.Is this the whole group of eight sweets?
Is this the whole group of eight sweets?

Yes
Q2.Is this the whole group of eight sweets?
Is this the whole group of eight sweets?

No
Q3.Which part will complete the whole group?
Which part will complete the whole group?


one car

two cars


four cars
Q4.Which part will complete the whole group?
Which part will complete the whole group?


one car

two cars


four cars
Q5.Andeep thinks there is more than one possible answer. Is he correct?
Andeep thinks there is more than one possible answer. Is he correct?

No
Q6.Izzy thinks there is only one possible answer. Is she correct?
Izzy thinks there is only one possible answer. Is she correct?

Yes
Assessment exit quiz
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6 Questions
Q1.Which of these is a part-whole model?
Which of these is a part-whole model?



Q2.Which is bigger – a part or a whole?
Which is bigger – a part or a whole?

a part
Q3.How many cubes are in the whole?
How many cubes are in the whole?

2
3
4
Q4.How many cubes are in each part?
How many cubes are in each part?

1
3
4
Q5.Andeep thinks there is more than one way to partition five cubes. Is he right?
Andeep thinks there is more than one way to partition five cubes. Is he right?

No
Q6.Izzy thinks the whole will be six. Is she correct?
Izzy thinks the whole will be six. Is she correct?

No