Puzzle
Ratio & proportionPuzzle
Four Fours:Direct and inverse proportion
Sixteen cards (equations, tables, sketch graphs and contexts) sorted into direct, inverse, square and not proportional. Traps include y = x/3 against y = 3/x.
A free GCSE ratio and proportion puzzle with answers, spec code R10. It goes with the lesson on inverse proportion.
Lesson
Inverse proportion
More in Proportion
- Rates from graphsLesson · Common
- Gradient of a curveLesson · Higher
- Ratio: finding a missing amountLesson · Support
- Ratio: finding a missing amountLesson · Foundation
- Direct proportionLesson · Support
- Direct proportionLesson · Foundation
- Inverse proportionLesson · Foundation
- Proportion equationsLesson · Common
- Direct proportion: y = kxLesson · Higher
- Direct proportion: worded problemsLesson · Higher
- Real-life graphs: exam questionsExam questions
- Ramp up: rates of change on curvesWorksheet · Higher
- Code breaker: gradients and areasPuzzle
- Code breaker: ratio and a missing amountPuzzle