‹ GCSE Maths
Proof and iteration
Algebraic proof and counterexamples, then finding roots that do not come out exactly: changes of sign and iteration. Higher tier.
Start: Algebraic proof About 25 min, free
Lessons
Practise and test
By the end you can
Prove simple results using algebra (odd, even, multiples, consecutive numbers) Disprove a statement with a counterexample Show a root lies in an interval by a change of sign Use an iteration formula to find a root to a given accuracy Revision notes
Specifications DfE content (all boards) A6, A20AQA 8300 AlgebraPearson Edexcel 1MA1 AlgebraOCR J560 6 Algebra
Next unit: Problem solving and proof Previous unit: Functions and graph transformations
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