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Year 4

Review constructing a whole when given a part and the number of parts

I can construct a whole when given a part and the number of parts.

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New
New
Year 4

Review constructing a whole when given a part and the number of parts

I can construct a whole when given a part and the number of parts.

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Lesson details

Key learning points

  1. When constructing a whole, you can start with the part.
  2. To construct a whole, you need to know how many parts make it up and whether those parts are equal.
  3. The whole can be one shape or a group of objects
  4. Different shaped wholes can be constructed using the same shaped equal parts.

Keywords

  • Whole - The whole is all the parts or everything, the total amount.

  • Part - A part is some, but not all, of the whole.

  • Construct - Constructing something involves making something by joining parts together.

Common misconception

Children may not include the original part when constructing a whole. E.g. if the given part is one of four equal parts of the whole, they may construct five parts together in total.

How many parts does your whole have?


To help you plan your year 4 maths lesson on: Review constructing a whole when given a part and the number of parts, download all teaching resources for free and adapt to suit your pupils' needs...

This should be a practical lesson where possible - '2D' shapes can be used or piece of paper cut up.
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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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6 Questions

Q1.
What is the name of this shape?
An image in a quiz
Correct Answer: hexagon
Q2.
Which shape is the odd one out because it is not the same polygon as the others?
A
B
C
Correct answer: D
Q3.
Look at the whole shapes. Which shapes are made from four equal-sized parts?
A
Correct answer: B
Correct answer: C
D
Q4.
Complete the bar model by calculating the whole.
An image in a quiz
Correct Answer: 18
Q5.
Match the equation to its product.
Correct Answer:4 × 5 = ,20
tick

20

Correct Answer:3 × 4 =,12
tick

12

Correct Answer:2 × 5 =,10
tick

10

Correct Answer:3 × 5 =,15
tick

15

Correct Answer:3 × 7 =,21
tick

21

Q6.
Look at these sets of marbles. Out of all the sets, in which one is the green marble the greatest part of the whole?
An image in a quiz
Set A
Set B
Set C
Correct answer: Set D

6 Questions

Q1.
Look at these shapes and their parts. Which shape is the odd one out, thinking about the parts and wholes?
A
Correct answer: B
C
Q2.
Look at the given part of a shape. This is one part of a whole made out of three equal parts. Which is a correct shape?
An image in a quiz
Correct answer: A
B
C
Q3.
Look at the given line segment - this is one part of four equal parts. Which is the correct whole line?
An image in a quiz
A
B
Correct answer: C
D
Q4.
Izzy has a length of string that she cuts into four equal parts. The image shows one of her parts. How long was her string to start with?
An image in a quiz
A
B
Correct answer: C
Q5.
A grocer has divided his apples into three equal groups ready to pack them into boxes. Here is one group. How many apples did the grocer have?
An image in a quiz
Correct Answer: 15
Q6.
Strip A is made up of 2 equal parts. Strip B is made up of 3 equal parts. Which strip is the longest?
An image in a quiz
Correct Answer: B, Strip B