Designed to be the fourth lessons for Year 7s (4/4). Learning outcomes: (*) Describe the three different types of data. (*) Calculate means. (*) Draw a suitable graph for given measurements. Students recap the three types of variables and then learn the three types of data (Continuous, Discrete and Categoric). They are then shown how to fill in a results table (where the dependent and independent variables go). They learn how to calculate means and how to plot this data onto a graph. The steps in drawing a graph are laid out in a step by step method (designed to be down together with the whole class). They are also informed on when to use line or bar charts.