Converting units of length
I can use knowledge of multiplication and division to convert units of length.
Converting units of length
I can use knowledge of multiplication and division to convert units of length.
Lesson details
Key learning points
- There are 10 mm in 1 cm.
- There are 100 cm in 1 m.
- There are 1,000 m in 1 km.
- There are 1,000 mm in 1 m.
- There are 10 dm in 1 m.
Common misconception
Children may confuse when to multiply or when to divide.
Encourage children to think about which unit of measure is larger e.g. km are larger than m. In a given amount, there will be fewer of the larger unit so we need to divide.
Keywords
Convert - To convert means to change a value or expression from one form to another. In this context it means to change from one unit of measurement to another such as from cm to mm.
Decimetre - A decimetre is a metric unit of length, equal to one-tenth of a metre. Decimetre can be abbreviated to dm.
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).
Video
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Starter quiz
6 Questions
400
40
4
60
600
0
3.1
310
57.6
576
2.3
23
Exit quiz
6 Questions
103 mm
130 mm
1,300 mm
1.3 m
10.3 m
25 dm
2.5 m
250 dm
2,500 cm
2,500 mm