- DC Teaching Fellows
- Praxis at ETS.org The Educational Testing Service's page about the Praxis exams. You can find examples of questions, study guides, and registration information here.
- How to write proofs A readable guide to the basics of proof writing, including discussion and examples of many styles of proofs.
- Paul's online math notes Absolutely wonderful review sheets and notes covering the basics in many subjects we'll cover in the class.
- MathWorld A great place for looking up those math words you've forgotten or maybe never heard... The entries can get a little technical at times, though, so be warned.
- Wikipedia You know what to do.