The Parabola as a Locus: Paving the Way to the CCSS
Armando Moises Martinez-Cruz — CSU Fullerton
Jose Natividad Contreras — Ball State University
Abstract
Authors present a teaching activity conducted in a geometry class for prospective secondarymathematics teachers. Activity goal is to derive the equation of the parabolagiven the focus and the directrix (CCSS). Additionally, students use Geogebra to investigate the effect of thefocus and the directrix on the graph.
Keywords: coordinate geometry, algebraic reasoning
Licensed under CC BY-NC-SA 4.0 · ISSN 2162-3856 · North American GeoGebra Journal