Foundation GCSE requires that students can draw and later recognise graphs representing relationships in direct or inverse proportion. In each example, if a student works out a conversion for ONE ...

Graphs are everywhere. Whenever a delivery company models a road network, a power grid operator tracks the flow of ...

Spotting variables which are in direct proportion from a table of values. Plotting these values onto a set of axes, to identify the link to a straight line graph passing through the origin.