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Checking and securing understanding of scales and conversion
Maths•Key Stage 4•2D and 3D shape: compound shapes
Lesson Description
I can read values from various scales and convert between units of measure.
Lesson Overview
Key learning points
- Reading values from scales in a useful skill in a variety of contexts.
- Different countries may use different measurements.
- Incorrect conversion produces a different ratio.
Keywords
- Metric units
- Metric units are based around the standard units of metre, gram and litre.
- Imperial
- Imperial is a system of units for measuring, which was created in the early 1800s, during the British Empire.
- Interval
- An interval is the space between two values or points. On a scale, intervals are shown using a small mark or line to show the space between.
Common mistakes
Pupils may assume every scale increases by 1 each time or that there are 10 increments.
Ensure pupils are counting how many gaps along the scale and calculating the increment size.
Lesson Video
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