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This topic covers standard units for length, mass, capacity, area, volume and time, converting between metric units and using them accurately in measurement problems. It's a core topic in GCSE and iGCSE Maths with Edexcel and the other major boards. This free interactive eClassroom course walks through each step with worked examples and instant-feedback questions, so you can practise until it's secure.
How you do it
Convert everything to the same unit before you calculate. Remember that area factors square and volume factors cube, so 1 metre squared is 10000 centimetres squared, not 100.
Before you start
It assumes you can handle the four operations and place value. You meet it at Foundation and Higher tier. Expect to use it again in compound measures and unit conversion.
What you learn
Measurements only make sense with the right units. This lesson covers converting metric units and working confidently with time. Metric units convert by multiplying or dividing by 10, 100 or 1000. In problems, convert everything to the same unit before comparing or calculating. The course works through metric conversions, sensible units and converting in context and time and the 24-hour clock. Every section has instant-feedback practice questions matched to Edexcel iGCSE 4MA1 and the other major GCSE boards, and the course finishes with full exam-style questions you mark yourself.
Related Topics
We teach Standard Units & Measures as one of the Number topics in our GCSE course library, at Foundation tier. It runs to 3 concepts, each followed by a check, with 2 worked examples along the way. Nearby topics in the same strand are Surds, Systematic Listing, Upper & Lower Bounds, Approximation and Compound Growth & Decay. You can drill this strand further on the Number revision engine, with your accuracy saved to your skill tree.
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