- CST Preparation – Geometry (slides with links to videos)
- Elementary College Geometry by Professor Henry Africk (textbook that includes elementary versions of many of our topics)
- Book of Proof by Richard Hammack (this is the textbook that Professor Reitz uses for his intro to proofs class)
- Still having trouble with proofs? Here is a self-study module that is designed to get students ready to take a proofs class; it takes about 4-6 hours. Students who completed this self-study module earned a higher grade in their proofs class than students who didn’t complete it.