Solve addition and subtraction problems involving length
I can solve addition and subtraction problems involving length.
Solve addition and subtraction problems involving length
I can solve addition and subtraction problems involving length.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Addition and subtraction problems both involve a whole and its parts.
- You can think about addition and subtraction stories involving length and identify the whole and its parts.
- When you join two items together, you can add their lengths together to find the total length.
- When you remove part of an object, you subtract the amount you have removed to find the length of the remaining part.
Keywords
Part - A piece or section of the whole.
Whole - All of something. Complete.
Common misconception
Children may confuse standard and non-standard units, for example measuring the height of a tower by counting the blocks rather than using a ruler to measure its length in centimetres.
Use prompts such as, 'How many centimetres tall is this tower?' and, 'The first part of the tower is 10cm tall.' to reinforce the use of centimetres as a standard unit of measure.
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).
Lesson video
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Starter quiz
6 Questions
3 + 3 = 6
5 + 5 = 10
4 + 4 = 8
Exit quiz
6 Questions
10
12
14
a part
the whole
a part
