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.

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.

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## Lesson details

### Key learning points

1. Using squares means that there are no gaps or overlaps.
2. 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).

## Starter quiz

### 6 Questions

Q1.
Put the missing words from the sentence into the correct order: ___ is the measurement of a ___ surface. It measures a ___ space.
1 - area
2 - flat
3 - 2D
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.
Correct answer: Count the squares in one column and then count in steps of that number.
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?
Correct answer: One half + one half
One quarter + one quarter
Correct answer: One quarter + three quarters
One half + one quarter
Correct answer: One third + two thirds

## Exit quiz

### 6 Questions

Q1.
This shape has an area of square units.
Correct Answer: 10, ten, Ten, 10.
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.
Correct answer: Count the squares individually.