2.56 Composite Functions Higher IGCSE PowerPoint Lesson

In this 28-slide lesson, students will deepen their understanding of composite functions by exploring how to evaluate expressions such as f(g(x)) and interpret them in terms of domain and range. They will learn that the output of the inner function becomes the input of the outer function, and will discuss how this affects which values of x are valid in a composite function. Particular attention will be given to identifying values that must be excluded from the domain, such as those that result in division by zero or square roots of negative numbers.

This lesson is for the higher tier only.

The lesson includes:

• Clear, guided examples

• Discussion opportunities from Think, Pair, Share

• Mini whiteboard section to check understanding and clarify misconceptions

• Two structured tasks to practise key skills

• Challenge activity to extend and deepen learning

Perfect for engaging learners while reinforcing essential algebra concepts.