New
New
Year 3

# Constructing a whole

I can construct a whole when given one part and the fraction that it represents.

New
New
Year 3

# Constructing a whole

I can construct a whole when given one part and the fraction that it represents.

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## Lesson details

### Key learning points

1. If you know a part and the fraction it represents, you can construct the whole.
2. If one-__________ is a part, then the whole is __________ times as much.
3. Take __________ parts and put them together to make one whole.

### Common misconception

Children may struggle to construct the whole from a given part. They may misunderstand the total number of parts needed as this includes the original part.

Emphasise the denominator as the number of equal parts and ensure the learner sees the part they have as one of ___ equal parts. Take time to construct and deconstruct wholes from and into equal parts so learners know what to include in the count.

### Keywords

• Construct - Construct means to make or build something. In the context of this lesson, it means to make or build a whole from equal parts.

### Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

## Starter quiz

### 6 Questions

Q1.
All of something is known as the .
Q2.
Some, but not all of something, is known as a .
Q3.
If a whole is divided into two equal parts, each part is one- of the whole.
third
quarter
Q4.
If a whole is divided into four equal parts, each part is one- of the whole.
half
third
Q5.
Which image shows one-third of the whole bar?
A
C
D
Q6.
A rod is one part of the whole. Five equal rods make up the whole. Which image shows the whole?
A
C
D

## Exit quiz

### 6 Questions

Q1.
When we make or build something, we it.
Q2.
One red rod is one-sixth of the whole. Which representation shows a part alongside its whole?
A
B
Q3.
Which statement describes the relationship between the blue bar and the green bar?
One blue bar is twice the length of one green bar.
Correct answer: One blue bar is three times the length of one green bar.
One green bar is three times the length of one blue bar.
Q4.
If a part is one-eighth of the whole. How many equal parts are there in the whole?