Recommendation for a high school astronomy textbook
I've recently found out (on Aug 21, 2015) that I will be teaching a high school astronomy class.
Any textbook recommendations?
I'm looking for something reasonably inexpensive (it's a private school, but I've got to buy a copy, too ), current, with good coverage of astronomical history, no essential math beyond high school algebra.
Information about American English usage here. Floating point issues? Please read this before posting.
I used 21st Century Astronomy when I took Astronomy 101 at college-- I don't think it had any math I hadn't learned in High School (at the very least, it had no math I couldn't do, and I am rather bad at math...) New copies online look like they're pretty expensive, but it seems to be available for under 20 dollars used: http://www.barnesandnoble.com/mobile...=2689777854542