Year 5

Year 5

# Calculate the area of rectilinear shapes

## Lesson details

### Key learning points

1. In this lesson, we will learn to calculate the area of rectilinear shapes by splitting them into two or more rectangles.

### 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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### 4 Questions

Q1.
What is area?
A shape with parallel sides
The measurement around the boundary of a shape
Correct answer: The size of the surface of a 2-D shape
Q2.
What is the area of the shape below?
14 units squared
5 units squared
Q3.
What is the formula for calculating area?
length + width
length + width
length ÷ width
Q4.
What is the area of the shape below?
10 cm
20 cm
24 cm

## Exit quiz

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### 4 Questions

Q1.
What does area measure?
length
the space around the outside of a shape
Correct answer: the space inside a shape
Q2.
What is the area of a rectangle that measures 5cm by 4cm?
18cm
20cm
9cm
Q3.
How could you find the area of this shape? (tick 4)
Correct answer: count the squares inside
Correct answer: find a 6x4 rectangle then subtract a 2x4 rectangle
guess
Correct answer: split into a 2x6 rectangle and a 2x2 square
Correct answer: split into two rectangles: 2x4 and 2x4
split into two rectangles: 2x4 and 2x6
Q4.
What is the area of this shape?
180cm²