Linking graphs to data types
Choosing the appropriate data representation requires students to understand the specific features of each graph type and how the selection links to the type of data.
Students need to see examples where the most appropriate graph type has been selected and drawn for a range of contexts.
The choice should be explained in terms of the type of data and how this relates to the specific features of the graph type.
Students need to have the opportunity to make their own decisions about the most appropriate representation.
A context rich in data and data types can lead to students choosing several different graphs, all fit for purpose, in a single investigation.
Using data to investigate a range of questions, students learn about the specific features, uses and advantages of different graph types for appropriate representation of data.
Melbourne Cup data
The Melbourne Cup is a context rich in data and data types. Different investigations from this context require informed selection of graphical representation based on both the question asked and the data type.