Abstract
We report on how students deal with some technical aspects of the operation of a graphics calculator. Clinical interviews were conducted with 25 Year 10-11 students as they used graphics calculators to study graphs of straight lines and parabolas. Three common student difficulties were identified: a tendency to be unduly influenced by the jagged appearance of graphs; a poor understanding of the zoom operation of the graphics calculator; and a limited grasp of the processes used by the calculator to display graphs. Implications for teaching are discussed.
Michael Cavanagh & Michael Mitchelmore
Students’ Technical Difficulties In Operating A Graphics Calculator