Estimate where 6, 7, 8 and 9 lie on an unmarked number line

I can estimate where 6, 7, 8 and 9 can lie on an unmarked number line.

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Year 1

Estimate where 6, 7, 8 and 9 lie on an unmarked number line

I can estimate where 6, 7, 8 and 9 can lie on an unmarked number line.

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Share activities with pupils

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Lesson details

Key learning points

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.

Keywords

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 misconception

Children may find it hard to draw their own number lines.

Place the first, last and midpoint numbers first and use fingers or cubes to space the other numbers out equally.

Children will need lots of practise ordering numbers and placing them on a number line, thinking about where to place them in relation to other numbers. They do not need to be exact, but should be making reasonable judgements that demonstrate they are developing proportional thinking.

Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).