Direct and inverse proportion. Growth and decay (linear, exponential, compound). Compound measures (speed, density, pressure). Conversion between units. Real-life rates and ratios.
This strand is named explicitly by AQA as one of its six content domains. In Edexcel IGCSE it is woven through the Number and Algebra content. In FS Maths L2 it is delivered through measures, money, and the everyday-life framing.
Tested by
- AQA GCSE 8300 AO1 applied to the Ratio, proportion and rates of change content domain
- Edexcel IGCSE 4MA1 AO1 (woven through Number and Algebra topics rather than separately named)
- Pearson Edexcel FS Maths L2 — Number (proportion, percentage, ratio in adult-life contexts) and FS Maths L2 — Measures (compound measures and conversions)
Cross-curriculum links
- Life and Work — Functional Maths — money, conversions, recipes, scaling
- Life and Work — Financial Literacy — interest, growth, savings, debt