Last Minute Changes

Fall Semester begins on Monday. I was scheduled to teach two courses: first-semester calculus, and junior-level abstract algebra. (In my department, the standard yearly teaching load is five courses, split two-and-three between the semesters.) This afternoon, I got a call from the Chair; as a result of some last-minute reshuffling, they need me to teach advanced geometry as well. In return, I won't have to teach statistics next semester - just differential equations and differential geometry. (I think that's the deal; the university website hasn't updated the class schedule since the end of June.)

It's fine with me, but a little more warning would have been nice. I've only taught that geometry course once before. I don't even know what text we're using.