So as to expand my mathematical horizons for the sake of my students. I’ve forgotten a lot since I took Calc II 17 years ago, but I’ll pick it up right again, given the appropriate resource. So if anyone has any books or even web sites they’d recommend, I’d appreciate it.
Wikibooks is a good place to begin.
Calculus: An Intuitive and Physical Approach, by Morris Kline (a little textbooky)
Mathematics for the Nonmathematician, by Morris Kline (not just calc)