Functions is an important concept in mathematics to grasp. These sites, blogs and videos do an excellent job of explaining it visually and offer all these videos and more resources for free. Hope this ...

Revise determining composite and inverse functions for your Higher maths exam with Bitesize Scotland interactive practice quizzes covering feedback and common errors.

Marcus du Sautoy meets a detective who uses maths to help solve crimes. Relevant for teaching Maths at KS4 and GCSE in England, Wales and Northern Ireland and National 4/5 or Higher in Scotland.