x

Conversion factors

A unit tells you what a measurement is counted in, such as mm, cm, m, km, litres or seconds. A conversion rewrites the same amount in a different unit, so $\, \text{m}$ and $\, \text{cm}$ describe the same length.

Conversions and Units Lesson

GCSE
Maths
Conversions and Units

Step-by-step lessons covering OCR GCSE Maths Conversions and Units for Foundation and Higher tier. Each lesson works through exam-style questions in the written papers format. Build fluency with number, ratio and algebra first, since geometry, probability and statistics topics rely on them, and leave extra time nearer the exam for Higher-tier problem-solving and multi-step reasoning questions.

Lessons

x

Conversion factors

A unit tells you what a measurement is counted in, such as mm, cm, m, km, litres or seconds. A conversion rewrites the same amount in a different unit, so $\, \text{m}$ and $\, \text{cm}$ describe the same length.

Conversions and Units Lesson

GCSE
Maths
Conversions and Units

Step-by-step lessons covering OCR GCSE Maths Conversions and Units for Foundation and Higher tier. Each lesson works through exam-style questions in the written papers format. Build fluency with number, ratio and algebra first, since geometry, probability and statistics topics rely on them, and leave extra time nearer the exam for Higher-tier problem-solving and multi-step reasoning questions.