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Year 3

Constructing a whole

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

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New
New
Year 3

Constructing a whole

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

Download all resources
Share activities with pupils

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.

Practical experience of creating wholes from equal parts is vital here. Consider what real-life and practical experiences you could provide pupils such as using cubes or counters or shapes divided into equal parts. Handling parts and wholes will enhance understanding of key learning.
Teacher tip

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).

Video

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Starter quiz

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6 Questions

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

Exit quiz

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6 Questions

Q1.
When we make or build something, we it.
Correct Answer: construct
Q2.
One red rod is one-sixth of the whole. Which representation shows a part alongside its whole?
An image in a quiz
A
B
Correct answer: C
Q3.
Which statement describes the relationship between the blue bar and the green bar?
An image in a quiz
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?
Correct Answer: 8, eight, ate
Q5.
Complete the sentence. If one-quarter is a part, then the whole is times as much. Take parts and put them together to make one whole.
Correct Answer: 4, four, for
Q6.
Complete the table - what would be the number of equal parts in the whole?
An image in a quiz
Correct Answer: 5, five

Additional material

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