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What proportion means

What proportion means

Proportion compares quantities that change together in a multiplicative way. If one quantity is multiplied by a factor, the other follows a predictable rule too.

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

Recurring Decimals to FractionsFractional and Negative IndicesDirect and Inverse ProportionExpanding Triple BracketsSolving Simultaneous Equations GraphicallyGradient of a LineEquation of a LineSpheres and ConesSector Areas and Arc LengthsParallel and Perpendicular LinesSimilar Shapes (Area and Volume)Circle TheoremsCumulative FrequencyProbability Trees