Subrina, I like that recommendation. I could go for no more than 15 per class section. When there are 'too many' students in a class it is difficult for the instructor, and the students, to keep up with who said what. This makes it more difficult to get to 'know' the people in the class to have deeper, person-to-person academic exchanges. So it is just as important for the students, as it is for the teacher, for the class ratio to be manageable. Also (IMHO), probably most of the folks who believe online class is easier than f2f have never taken an online class, nor taught one.