Abstract
Responses from 42 attendees at a mathematics teachers? conference to a task involving the search for a complete graph of a difficult cubic function were analysed. Neither a specific initial action nor the application of mathematical knowledge guaranteed an immediate global view. However, flexibility of approach, use of the automatic range scaling features, positioning the view shown by the calculator with one?s mental image of the function, and the application of graphing calculator knowledge in conjunction with mathematical knowledge facilitated the teachers? solutions. Focussed experiences involving these should provide the basis of lessons designed to maximise student learning in this topic.