# Cutting and combining shapes

## Lesson details

### Key learning points

1. In this lesson, we will analyse the effect of cutting, moving and combining shapes on area and perimeter.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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## Worksheet

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## Starter quiz

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### 5 Questions

Q1.
Fill in the gap: Area is a measure of the __________ inside the boundary of a shape.
numbers
triangular
Q2.
Fill in the gap: We can use different ____________ to record the area of a shape.
numbers
space
triangular
Q3.
Fill in the gap: Shape A has an area of ________ square units.
12
13
15
Q4.
Fill in the gap: Shape B has an area of 12 ____________ units.
centimetres
circular
square
Q5.
What is the area of this shape?
28 square units
30 square units
31 triangular units

## Exit quiz

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### 5 Questions

Q1.
Fill in the gap: When we __________ two or more shapes we form a new shape.
find
less
sum
Q2.
Fill in the gap: The area of the new shape will be the ________ of the areas of the original shapes.
combine
find
less
Q3.
Fill in the gap: The perimeter of the new shape will be ________ than the sum of the perimeters of the original shapes, and varies depending on how we combine them.
combine
find
sum
Q4.
Which letter represents the number 12?
A
C
D
Q5.
Which letter represents the number 10?
A
B