Year 1 - Maths
Measure length using objects
Numbers 0 to 20 in different contexts
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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 consolidate their counting to 20. They will measure objects using non-standard and standard measures and record outcomes, providing a context for counting and comparing numbers to 20.
Lesson Summary
You will learn to measure length, including height, by using different objects and explain how to do this accurately.
Key Notes
- Lengths and heights can be measured using objects such as blocks or dominoes.
- When you measure accurately, the objects you use to measure should be the same size.
- When you measure accurately, there should be no gaps between your objects.
- When you measure accurately, the objects should be in a straight line from one end to the other.
Vocabulary To Learn
- Measure: To find a number that shows the size or amount of something.
- Accurately: Working carefully so that there are no mistakes.
Common Mistakes To Avoid
- Children may not use objects to measure accurately, for example leaving gaps between the objects. They may also miscount the objects.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Lengths and heights can be measured using objects such as blocks or dominoes. When you measure accurately, the objects you use to measure should be the same size.
2. Use this key word in a maths sentence and explain it clearly. 'Measure'
To find a number that shows the size or amount of something. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Children may not use objects to measure accurately, for example leaving gaps between the objects. They may also miscount the objects. Correction: Encourage children to build a straight line of objects with no gaps first, then place the object they want to measure along the line. Encourage them to touch each object as they count.
More Lessons In This Unit
- Comparing lengths Study Guide
- Estimate and measure length and record results in a table Study Guide
- Estimate length in cm Study Guide
- Measure items using centimetre cubes and record results in a table Study Guide
- Measure length using a ruler Study Guide
- Measure length using centimetre cubes Study Guide
- Measure length using objects and record results in a table Study Guide
- Solve addition and subtraction problems involving length Study Guide
- Solve problems by measuring different lengths in cm using a ruler Study Guide
Browse all guides in the Year 1 Maths guide library.