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
- Using squares means that there are no gaps or overlaps.
- Fractions of squares can be added to make whole squares.
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.
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.
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 (2025), 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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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.
