Year 3 - Maths
Measure mass in whole kilograms and grams
Measures: mass and capacity
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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 use weighing scales up to 1kg and measuring tools for volume and capacity up to 1 litre. They will measure mass from 0 to above 1kg using whole kg and grams and measure volume from 0 to above 1 litre using whole litres and ml.
Lesson Summary
You will learn to use whole kilograms and grams to measure the mass of objects.
Key Notes
- 1 kg is equivalent to 1000 g.
- The mass of heavy objects can be given in whole kilograms and grams.
- We can use our knowledge of 1 kg and the composition of 1000 to determine the mass of objects.
Vocabulary To Learn
- Mass: Mass is a measure of how much matter something contains. It is measured by how much something weighs. Mass can be measured in kg and g.
- Gram: A gram is a metric measure of mass. A paper clip has a mass of about 1 gram. The abbreviation is g.
- Kilogram: Kilograms are use to measure the mass objects that are heavy. A pineapple has a mass of about 1 kilogram. The abbreviation is kg.
Common Mistakes To Avoid
- Composition of 1,000 is Year 4 content so children may make mistakes when giving masses in kg and g.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
1 kg is equivalent to 1000 g. The mass of heavy objects can be given in whole kilograms and grams.
2. Use this key word in a maths sentence and explain it clearly. 'Mass'
Mass is a measure of how much matter something contains. It is measured by how much something weighs. Mass can be measured in kg and g. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Composition of 1,000 is Year 4 content so children may make mistakes when giving masses in kg and g. Correction: Use of stem sentences to help: 1,000 is composed of __ equal parts of __.
More Lessons In This Unit
- Become familiar with scales with different intervals when measuring in grams Study Guide
- Comparing and estimating mass and volume Study Guide
- Estimate then measure mass and volume and record in a table Study Guide
- Measure the mass of objects using grams Study Guide
- Measure volume in whole litres and millilitres Study Guide
- Measuring the volume of liquids using millilitres. Study Guide
- Solve problems involving mass Study Guide
- Solve problems involving volume Study Guide
- Understanding capacity and volume Study Guide
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