Teacher Delivery Guide Pure Mathematics: 1.09 Numerical Methods OCR Ref. Subject Content Stage 2 learners additionally DfE Ref. Stage 1 learners should… should… 1.09 Numerical Methods 1.09a Sign change a) Be able to locate roots of by considering changes MI1 methods of sign of in an interval of on which is sufficiently well-behaved. Includes verifying the level of accuracy of an approximation by considering upper and lower bounds. b) Understand how change of sign methods can fail. 1.09b e.g. when the curve touches the x-axis or has a vertical asymptote.
Teacher Delivery Guide Pure Mathematics: 1.09 Numerical Methods OCR Ref. Subject Content Stage 1 learners should… Stage 2 learners additionally should… DfE Ref. 1.09 Numerical Methods 1.09a 1.09b Sign change methods a) Be able to locate roots of by considering changes of sign of in an interval of on which is sufficiently well-behaved. Includes verifying the level of accuracy of an approximation by considering upper and lower bounds. b) Understand how change of sign methods can fail. e.g. when the curve touches the x-axis or has a vertical asymptote. MI1
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