Algebraic expressions Function machines

This resource is for KS3 students and shows them the connections between words, algebraic expressions and function machines.

The lessons starts with a large number of examples allowing pupils to work on white boards. There is then a matching exercise.

Pupils are then shown how to substitute values into algebraic expressions and how to enter inputs into function machines. The aim is that they see how both are essentially the same process. There are a large number of examples allowing for white board work.

Pupils are then given a worksheet where they find the outputs for given function machines and inputs. The extension asks students to find inputs for given outputs with a hint at inverse function machines.