Puzzle
Ratio & proportionPuzzle
Four Fours:Proportion graphs
Four proportion relationships, each as an equation, a sentence, a table and a sketch graph with one point marked. The graphs of y = 4x and y = 2x look alike, and so do y = 24/x and y = 12/x, so the marked point has to be read. One per A4.
A free key stage 3 and GCSE ratio and proportion puzzle with answers, spec codes R10 and R14. It goes with the lessons on direct proportion graphs and inverse proportion graphs.
Lesson
Direct proportion graphs
Lesson
Inverse proportion graphs
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