Big Ideas in Modern Geometry: For Future Mathematics Teachers

This book was written to prepare future teachers, especially in the middle and secondary grades, for the mathematical work of teaching. The focus of this module is geometry, and mathematics doesn't get any better than that. Geometry allows us to think spatially, to see structure in art and form, and to create and visualize new "worlds" with different rules.

Does the word "geometry" call to mind the two-column-proof of your high school days? Long ago mathematics educators decided that geometr...