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What proportion means

What proportion means

In proportion questions, two variables are linked by a fixed number called the constant of proportionality, usually kkk. Your first job is to turn the words into an equation.

Direct and Inverse Proportion Lesson

  1. IGCSE
  2. /Maths
  3. /Direct and Inverse Proportion

Step-by-step lessons covering Oxford AQA IGCSE Maths Direct and Inverse Proportion for Core and Extended tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) format. Since content from any part of the specification can appear on either paper, keep number and algebra fluency sharp throughout the course rather than leaving it until near the exam.

Lessons

SurdsBoundsDirect and Inverse ProportionQuadratic FormulaFactorising Harder QuadraticsAlgebraic FractionsRearranging Harder FormulaeFinding the Area of Any TriangleThe Sine RuleThe Cosine Rule3d Pythagoras and TrigonometryThe Magnitude of a VectorHistogramsConditional Probability