New

New

Year 5

# Measure area using counting with squares as a strategy

I can use squares to cover the surface and count the area.

Share activities with pupils

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New

New

Year 5

# Measure area using counting with squares as a strategy

I can use squares to cover the surface and count the area.

Share activities with pupils

Share function coming soon...

## Slide deck

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## Lesson details

### Key learning points

- Using squares means that there are no gaps or overlaps.
- Fractions of squares can be added to make whole squares.

### Common misconception

Pupils might count a part square - such as a triangle - as one square unit.

The slides show two parts moving together to make a whole square. Cutting out and physically moving the parts is an effective strategy.

### Keywords

Area - The measurement of a flat surface. It measures a 2D space.

Square units - A square of a set size used to measure area.

In Cycle 3, pupils are asked to visualise parts of shapes being manipulated to form a rectangle. If they are unable to do so, print out the relevant slides so that they can cut out the shapes and re-form them as rectangles.

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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## Worksheet

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## Starter quiz

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### 6 Questions

Q1.

Put the missing words from the sentence into the correct order: ___ is the measurement of a ___ surface. It measures a ___ space.

Q2.

Which of these shapes is most commonly used for measuring the area of a 2D space, because it tessellates so well and has right angles?

circle

triangle

hexagon

Q3.

Which of the following shapes are rectilinear?

a

c

Q4.

What is the most efficient way of finding the area of this rectangle?

Count all of the individual squares.

Count the squares in one row and then count in steps of that number.

Q5.

I am counting in threes: 3, 6, 9... Tick all of the numbers that would appear in the sequence when counting in threes.

11

13

Q6.

Which of these would make one whole?

One quarter + one quarter

One half + one quarter

## Exit quiz

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### 6 Questions

Q1.

This shape has an area of square units.

Q2.

This shape has an area of square units.

Q3.

Which strategies could be used to find the area of this shape? Select all that apply.

Add the square made of four squares to the rectangle made of 24 squares.

Q4.

This shape has an area of square units.

Q5.

This shape has an area of square units.

Q6.

This shape has an area of square units.