This lesson focuses on different types of averages, the location and spread of data, and the pro's and con's of each. The power point uses a case study to help explain how mean, median, mode, range and inter-quartiles are calculated, and what each type of statistic shows. This lesson is designed to be interactive, with questions/ answers included. This also reduces the need for printing. Although originally designed for GCSE, this resource will prove useful in any math lesson. Learning aims are