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.

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?

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

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

20

Correct Answer:3 × 4 =,12

12

Correct Answer:2 × 5 =,10

10

Correct Answer:3 × 5 =,15

15

Correct Answer:3 × 7 =,21

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