New
New
Year 5
Use knowledge of area to solve problems in a range of contexts
I can use knowledge of area to solve problems in a range of contexts.
New
New
Year 5
Use knowledge of area to solve problems in a range of contexts
I can use knowledge of area to solve problems in a range of contexts.
Lesson details
Key learning points
- To find the area of a rectangle you multiply the length by the width.
- Compare different methods to decompose shapes and decide which is the most efficient.
- Choose the most efficient calculation strategies to calculate the area of a compound rectilinear shape.
Keywords
Dimension - A dimension is a measure of length in one direction.
Common misconception
Pupils may think that there is only one possible answer to some problems or only one way to solve a problem.
Discuss whether there is only one possible answer to a problem or if there are many solutions. Ensure that more than one approach to solving a problem is modelled where appropriate.
Use the problems presented in the lesson as opportunities for pupils to discuss approaches, strategies and solutions. Highlight the need to know if there is more than one solution to a problem. Encourage pupils to try different strategies and decide on the most efficient in each case.
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).
Lesson video
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Starter quiz
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6 Questions
Q1.
Match the pairs of numbers with a product 40.
8
40
10
20
Q2.
Which of these shapes are compound shapes?
A
C
Q3.
Look at this rectilinear compound shape. It is made up of 6 squares. Calculate the total area of the shape. A = cm².
Q4.
This image is of the flag of Romania. It consists of three rectangles of equal size. Calculate the total area of one rectangle. A = cm².
Q5.
Calculate the area of this compound rectilinear shape. A = cm².
Q6.
Choose an efficient method to calculate the area of this compound shape. A = cm².
Exit quiz
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6 Questions
Q1.
This rectangle has an area of 30 cm². Match the dimensions that would give this area.
6 cm
3 cm
15cm
30 cm
Q2.
The area of a rectangular carpet is 40 m². One dimension is 8 m. What is the other dimension? m.
Q3.
Look at rectangles A and B. Which of the statements is correct?
The area of rectangle A is equal to the area of rectangle B.
The area of rectangle B is greater than the area of rectangle A.
Q4.
A square white paving slab has been placed on a square garden lawn. What is the area of lawn that can be seen? A = m².
Q5.
A small square is shown inside a larger rectilinear shape. Choose an efficient method to calculate the area of the rectilinear shape. A = cm².
Q6.
Choose an efficient method to calculate the area of the rectilinear shape. A = cm²
