Year 1 - Maths
Estimate where 6, 7, 8 and 9 lie on an unmarked number line
Composition of numbers 6 to 10
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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 represent numbers 6 - 10 by partitioning in different ways. They will learn what odd and even numbers are and how they can be partitioned. They will identify a missing part when a whole is partitioned into two parts where one of the parts is known.
Lesson Summary
You will learn to estimate where 6, 7, 8 and 9 can lie on an unmarked number line.
Key Notes
- The position of numbers can be estimated on unmarked number lines using an understanding of relative size.
- The midpoint, five in this case, should be marked to support positioning
- We can compare numbers on a number line by looking at how far away from other numbers they are.
Vocabulary To Learn
- Estimate: To find a value that is close enough to the right answer, usually with some thought or calculation involved.
- Compare: You compare to find out what is the same and what is different. You can compare numbers to find out if one is greater than or less than another.
- Midpoint: The middle of something. The point halfway along.
- Number line: A line with numbers placed in their correct position.
Common Mistakes To Avoid
- Children may find it hard to draw their own number lines.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
The position of numbers can be estimated on unmarked number lines using an understanding of relative size. The midpoint, five in this case, should be marked to support positioning.
2. Use this key word in a maths sentence and explain it clearly. 'Estimate'
To find a value that is close enough to the right answer, usually with some thought or calculation involved. 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 find it hard to draw their own number lines. Correction: Place the first, last and midpoint numbers first and use fingers or cubes to space the other numbers out equally.
More Lessons In This Unit
- Compare two numbers and say which is greater than or less than the other Study Guide
- Count a set of objects and match the spoken number to the written numeral and number name Study Guide
- Explain how even and odd numbers can be partitioned Study Guide
- Explain what odd and even numbers are and the difference between them Study Guide
- Explain where 6, 7, 8 and 9 lie on a number line Study Guide
- Explore the numbers 6 to 10 using the parts and wholes on a number line Study Guide
- Identify a missing part when a whole is partitioned into two parts Study Guide
- Identify the whole and parts of the numbers 6 to 10 using the five and a bit structure Study Guide
- Order and sort numbers into odd and even sets Study Guide
- Partition the numbers 6 and 7 in different ways Study Guide
- Partition the numbers 6 to 10 in different ways Study Guide
- Partition the numbers 8 and 9 in different ways Study Guide
- Represent the numbers 6 to 10 using a five and a bit structure Study Guide
- Skip count in odds and evens Study Guide
Browse all guides in the Year 1 Maths guide library.