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Trial and Improvement
The aim is for students to use a trial-and-improvement method to find the roots of a quadratic function. The TI-Nspire is used to calculate and tabulate possible solutions. Drawing the graph of the function reveals the existence of two roots and the tabulated solutions are also plotted as a scatterplot.
Very basic TI-Nspire tools are used which makes the activity suitable for new users of the technology. At the end of the teacher notes, several extra facilities are suggested which will allow students to gain further insights.
There is no pre-written tns file associated with this activity - it starts with a new blank document.