Year 4 - Maths
Identify numbers on marked but unlabelled number lines
Compare and order mixed numbers and position on a number line
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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 estimate the position of numbers on a number line using fraction sense. They will compare and order mixed numbers using fraction sense when the whole number and the numerator of the fractional part is the same.
Lesson Summary
You will learn to identify numbers on marked but unlabelled number lines.
Key Notes
- Within a mixed number, the whole number is the most significant part.
- The whole number part of a mixed number can be used to decide which integers it will be placed between on a number line.
- The fractional part of the mixed number can be used to establish exactly where it will be placed between these numbers.
Vocabulary To Learn
- Mixed number: A mixed number is a whole number and a fraction combined.
- Integer: An integer is a number that has no fractional part - they are whole numbers. This includes the counting numbers e.g, 1, 2, 3 and zero.
Common Mistakes To Avoid
- Children may count the marks rather than the equal parts between integers thereby determining the unit that we are working with incorrectly.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Within a mixed number, the whole number is the most significant part. The whole number part of a mixed number can be used to decide which integers it will be placed between on a number line.
2. Use this key word in a maths sentence and explain it clearly. 'Mixed number'
A mixed number is a whole number and a fraction combined. 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 count the marks rather than the equal parts between integers thereby determining the unit that we are working with incorrectly. Correction: Show that we need to count the equal parts in between the given integers, not the marks. You could model this with the same line with increasing parts.
More Lessons In This Unit
- Compare and order mixed numbers using fraction sense Study Guide
- Compare mixed numbers when the denominators of fractional parts are different Study Guide
- Compare mixed numbers when the numerators of fractional parts are different Study Guide
- Estimate the position of a number on a number line using fraction sense Study Guide
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