Estimate and identify numbers on number lines
Lesson details
Learning outcome
I can estimate and identify numbers on number lines.
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.
Teacher tip
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.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Match the expression to its answer.
= 100,000
= 200,000
= 250,000
= 20,000
= 25,000
= 10,000
Q2.Match the statement to the answer.
50
250
5,000
25,000
50,000
500,000
Q3.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.
a
b
c
Q5.Look at the number line. Find the sum of ‘a’ and ‘b’.
Q6.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.
8,250,000
8,500,000
8,750,000
Q2.Look at the number line. Match the letters to the number that they represent.
620,000
640,000
660,000
680,000
Q3.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’.
Q5.Look at this section of a number line. Estimate the value of the number that the arrow is pointing to.
Q6.Look at this section of a number line. Estimate the value of the number that the arrow is pointing to.
To help you plan your 6 maths lesson on: Estimate and identify numbers on number lines, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 6 maths lesson on: Estimate and identify numbers on number lines, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 2 maths lessons from the Order, compare and calculate with numbers up to 8 digits unit, dive into the full primary maths curriculum, or learn more about lesson planning.