I am a high school teacher who has never formally studied non-euclidean geometry. I have a talented, capable senior who wants to study non-euclidean geometry and ahare what he has learned with several of us, myself included. He is a good reader and has completed multivariable calc and Linear algebra. I need to find an appropriate source. He wants a math book, not a "popular survey" of the subject, and is quite able to learn mathematics on his own, which is what he will be doing. I need advice about what materials to get for him. Thanks in advance for your help.
John Benson Evanston Township High School 715 South Boulevard Evanston Illinois 60204 Evanston IL 60202-2907 (708) 492-5848 (708) 492-5848