Step 7 Objective
Construct, on paper and using ICT:
- pie charts for categorical data;
- bar charts and frequency diagrams for discrete and continuous data;
- simple line graphs for time series;
- simple scatter graphs.
Identify which are most useful in the context of the problem.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Examples of what pupils should know and be able to do
Pupils should understand that pie charts are mainly suitable for categorical data. They should draw pie charts using ICT and by hand, usually using a calculator to find angles.
They should be able to draw compound bar charts with subcategories.
They should use frequency diagrams for continuous data, and know that the divisions between bars should be labelled.
They should know that it can be appropriate to join points on a line graph in order to compare trends over time.