Functions Including Domain and Range
Three lessons including an introduction to using function notation, inverse functions and composite functions.
Introduction to function notation aims to familiarise students with f(x) and looks at substitution of values. Also included finding the range of a function, given its domain, which appears on the IGCSE. Complete differentiated lesson with examples and questions to display on the whiteboard. Answers included. Partial credit to TES user MrJWright, thank you.
Inverse functions includes rearranging formulae starter, differentiated main task and plenary where students need to create and assess their own exam questions.
Composite functions starts by looking at function machines so students have a visual representation of the method, then moves onto the algebraic side.