Quadratic Functions

Overview

The programme explores the main features of quadratic functions and their graphs. The exciting sports of speed skydiving and quad bike jumping provide examples of situations that can be modelled using quadratic functions. We see how to complete tables of values and how to plot points from the table. Presenters Katie and Jamie explore ways of recognising quadratic functions (from the graph or the equation). They also interpret information about the daring activities shown, using their graphs to make predictions about distances and times.

The programme aims to present the topic of quadratic functions in a lively, interesting and entertaining style. The content is linked throughout to the requirements of GCSE Intermediate Mathematics. It includes tips for answering examination questions and a discussion of a typical exam error in the ‘Tick or Trash’ section. The substitution of values and plotting from a table are demonstrated in detail. Clear graphic and visual explanations are used to reinforce understanding of the mathematics covered. The programme uses dynamic real-life contexts and draws the core mathematical ideas from these settings. The content is chosen to engage the student audience, as well as to support teachers by bringing the outside world into the classroom.