Expressions as Functions

GCSE Higher Lesson.
Understand an expression as a function, and link them to formulae.
Starter: Input-Output Loop cards
Definitions of a function, domain, range and notation. Explanations of the different skills that we are asked to use with functions. Including

• Defining a function from a domain and range.
• Evaluating a function from an input.
• Solving a function for a specific output.
  Worked examples, differentiated questions. All answers included.
  Worksheet following style of lesson. Answers include.