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I'm tutoring high school students in Math for a local College and Career prep program and would like to have a reference book on hand that I can consult. I'm a Comp Sci graduate so I have a pretty strong background in Math but it's been a while since I used high school level Algebra and Geometry.

Are there any good reference books that I could have on hand to brush up if I run into something I don't remember? I typically just need to browse a short description and an example before things start coming back and I can help students. Preferably cheap, I probably won't need it very often after a few months of tutoring. The ideal book would be something that is quickly browsable with a concise description of topics, and maybe cross references to related topics.

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Search free ebooks at project Gutenberg ( and you will find samples of both and the price is right! You might also want to get Schaum's outline in both subjects and might find them for a penny in both Algebra and Geometry! HTH ~A – Amzoti Sep 19 '12 at 22:03
I run a site called that catalogs free books. My general experience is that free books in math are heavily weighted toward the higher levels, e.g., graduate-level texts. It gets to be slim pickings when you get to the K-12 level. I don't see anything reasonable for high school geometry. – Ben Crowell Sep 20 '12 at 4:22
@BenCrowell After looking through project Gutenberg that seems to be the case there too. – Andrew Myers Sep 20 '12 at 12:17

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