Discovering A Congruence Theorem: A Project Of A Geometry-For-Teachers Class

Abstract

College teachers who work with prospective high school teachers have noted that their students tend to “teach as they have been taught.” Therefore, when one of my students brought a problem to my geometry-for-teachers class, I decided to make the solving of this problem a class project. The ensuing investiga- gation was one of the most interesting and rewarding made by my classes.