Year 5 - Maths
Solve problems involving different units of measure
Converting units
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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 apply memorised unit conversions to convert between units of measure and solve problems involving converting between units of time and money.
Lesson Summary
You will learn to solve problems involving different units of measure.
Key Notes
- If 1m = 100cm then 3m = 3 x 100cm = 300cm
- If 100cm = 1m then 500cm = 5 x 100cm = 5m
Vocabulary To Learn
- convert: To change a value or expression from one form to another, such as grams into kilograms.
- represent: Represent means to communicate mathematical ideas through models.
- calculate: Calculate means to choose one of the four operations to solve a problem.
Common Mistakes To Avoid
- Some pupils may need support with the decimal representation of measures and how to convert from larger units to smaller e.g. 1.2 l into ml.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
If 1m = 100cm then 3m = 3 x 100cm = 300cm. If 100cm = 1m then 500cm = 5 x 100cm = 5m.
2. Use this key word in a maths sentence and explain it clearly. 'convert'
To change a value or expression from one form to another, such as grams into kilograms. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Some pupils may need support with the decimal representation of measures and how to convert from larger units to smaller e.g. 1.2 l into ml. Correction: Allow pupils to go back to previous work completed where necessary to see the units of measure divided up into 2, 4, 5 and 10 parts and represented with decimals, to provide a scaffold for them to use whilst completing the problems in this lesson.
More Lessons In This Unit
- Convert between miles and kilometres and pounds and Euro Study Guide
- Convert from larger to smaller units of measure Study Guide
- Convert from smaller to larger units of measure Study Guide
- Convert to and from fraction and decimal quantities of larger units Study Guide
- Solve problems involving converting between units of time Study Guide
- Solve problems involving converting units in different contexts Study Guide
- Understand approximate equivalence between metric and imperial units Study Guide
- Use known facts to carry out conversions that correspond to 10 and 100 parts Study Guide
- Use known facts to derive common conversions over 1 Study Guide
Browse all guides in the Year 5 Maths guide library.