Intended for use in college courses for prospective or in-service
secondary school teachers of geometry. Designed to give teachers broad
preparation in the content of elementary geometry as well as closely
related topics of a slightly more advanced nature. The presentation and
the modular format are designed to incorporate a flexible methodology
for the teaching of geometry, one that can be adapted to different
classroom settings. The basic strategy is to develop the few fundamental
concepts of elementary geometry, first in intuitive form, and then more
rigorously. The rest of the material is then built up out of these
concepts through a combination of exposition and "guided discovery" in
the problem sections. A separate volume including the solutions to the
exercises is also available.