New
New
Estimate and identify numbers on number lines
I can estimate and identify numbers on number lines.
Lesson 9 of 10
New
New
- Year 6
Estimate and identify numbers on number lines
I can estimate and identify numbers on number lines.
Lesson details
Key learning points
- Understanding the scale of a number line helps to estimate and identify numbers on it.
- To determine the multiples that the number line increases in, take the whole and divide it by the number of parts.
- Locating the midpoint on a number line or between multiples helps to estimate.
Keywords
Estimate - When we estimate, we find a value that is close enough to the right answer, usually with some thought or calculation involved.
Midpoint - The midpoint is the middle of something - in this case the middle of a number line. It is the point halfway along.
Common misconception
Children may incorrectly place a number on a number line according to just counting the parts rather than working out the scale.
Determine the multiples that the number line is increasing in first: find the difference between the given start and end numbers and divide by the number of parts.
Children need to be confident with their common intervals before this lesson e.g. half, quarter, fifth and tenths of 100, 1,000, 10,000, 100,000 and 1,000,000 Consider providing a scaffold if children are less confident.
Teacher tip
Licence
This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Match the expression to its answer.
Match the expression to its answer.
Q2.Match the statement to the answer.
Match the statement to the answer.
Q3.Look at the number line. What number is represented by the letter ‘a’?
Look at the number line. What number is represented by the letter ‘a’?
Q4.Look at the number line. Match the letters to the number that they represent.
Look at the number line. Match the letters to the number that they represent.
Q5.Look at the number line. Find the sum of ‘a’ and ‘b’.
Look at the number line. Find the sum of ‘a’ and ‘b’.
1,600
2,400
3,000
Q6.Look at the number line. Find the difference between ‘a’ and ‘c’.
Look at the number line. Find the difference between ‘a’ and ‘c’.
Assessment exit quiz
6 Questions
Q1.Look at the number line. Match the letters to the number that they represent.
Look at the number line. Match the letters to the number that they represent.
Q2.Look at the number line. Match the letters to the number that they represent.
Look at the number line. Match the letters to the number that they represent.
Q3.Look at the number line. Identify the number represented by the letter ‘a’.
Look at the number line. Identify the number represented by the letter ‘a’.
Q4.Look at the number line. Identify the number represented by the letter ‘a’.
Look at the number line. Identify the number represented by the letter ‘a’.
Q5.Look at this section of a number line. Estimate the value of the number that the arrow is pointing to.
Look at this section of a number line. Estimate the value of the number that the arrow is pointing to.
350,000
3,100,000
3,900,000
Q6.Look at this section of a number line. Estimate the value of the number that the arrow is pointing to.
Look at this section of a number line. Estimate the value of the number that the arrow is pointing to.
9,345,698
9,500,000
910,000
