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Reading a function machine

Reading a function machine

Function machine with input 6 passing through a multiply by 4 box and a subtract 2 box to give output 22, with 24 shown as the intermediate value

A function machine is a quick way to show a rule. The input goes in on the left, each box tells you an operation, and the output comes out on the right.

Function Machines Lesson

  1. GCSE
  2. /Maths
  3. /Function Machines

Step-by-step lessons covering OCR GCSE Maths Function Machines 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

Calculation ProblemsUsing a CalculatorSystematic ListingFractions of an AmountFractions, Decimals and PercentagesSimplifying AlgebraWriting an ExpressionFunction MachinesSolving One Step EquationsAnglesArea and PerimeterProbabilityFrequency PolygonsAveragesBar ChartsStem and LeafPie Charts