Sharing Teaching Ideas: Graphing Families of Curves Using Transformations of Reference Graphs
David Kukla · Mathematics Teacher Learning and Teaching PK-12 · 2007
For years I have tried to help students understand algebraic functions. I thought the prevalence of graphing calculators in the classroom would remove the veils from their eyes, but I found instead that students did not understand functions well enough to be able to use their calculators effectively.