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NumberFoundation

Percentage increase and decrease

Bar models split into equal parts, one part labelled, extra parts added or hatched out, fading to multipliers like 1.35 and 0.88.

A free key stage 3 and GCSE Foundation number lesson on percentage increase and decrease, spec code R9. It has a lesson deck to teach from with a visualiser, a worksheet with answers, a puzzle, an exit ticket, an end of unit test and a method video.

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