Year 5 - Maths
Use knowledge of area to solve problems in a range of contexts
Link area of rectangles to multiplication
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
In this unit pupils will calculate the area of a rectangle using multiplication and use their knowledge of area to solve problems.
Lesson Summary
You will learn to use knowledge of area to solve problems in a range of contexts.
Key Notes
- 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.
Vocabulary To Learn
- Dimension: A dimension is a measure of length in one direction.
Common Mistakes To Avoid
- Pupils may think that there is only one possible answer to some problems or only one way to solve a problem.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
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.
2. Use this key word in a maths sentence and explain it clearly. 'Dimension'
A dimension is a measure of length in one direction. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Pupils may think that there is only one possible answer to some problems or only one way to solve a problem. Correction: 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.
More Lessons In This Unit
- Calculate missing dimensions in rectangles and compound rectilinear shapes Study Guide
- Calculate the area of compound rectilinear shapes Study Guide
- Calculate the area of shapes made from 2 or more rectangles Study Guide
- Calculate the area of shapes made from 2 rectangles by decomposing the shape in different ways Study Guide
- Calculate the areas of rectangles using multiplication Study Guide
- Choose an efficient way to decompose a compound shape to calculate the area Study Guide
- Explain how to calculate the area of a rectangle using multiplication Study Guide
- Measure the area of flat shapes using square centimetres Study Guide
- Measure the area of flat shapes using square metres Study Guide
Browse all guides in the Year 5 Maths guide library.