This lesson focuses on interpreting scatter diagrams and appreciating the relationship that a large amount of data can show. It also looks at plotting stem and leaf diagrams and calculating averages from these, as well as plotting and interpreting line graphs. This lesson is designed to be fairly interactive, with questions/ answers included. This also reduces the need for printing. Although originally designed for a GCSE group, this resource will prove useful in any math lesson. Learning aims are also included so students can measure their level of understanding and success in class. A lesson I have enjoyed teaching myself!