A Discovery-Based Approach to College Geometry. Developed with support from the National Science Foundation Grant #0230788. Published 2005 by McGraw-Hill.
- Instructor's Guide - contact the author
- Student Guide with answers to selected exercises (~441kb).
- Sample syllabus for a one-term course
- Detailed schedule from Author's Fall 2003 Geometry course at Gustavus Adolphus College
- Errata (for first edition, first printing) (2005)
- Errata (for Instructor's Manual, first edition) (2005)
- Geometry Explorer software to dynamically explore projects in text.