A class that is not interactive then doesn't have to be a class. It could be a book or a set of slides with an audio narration and that'd have the same result.

A class that is not interactive then doesn't have to be a class. It could be a book or a set of slides with an audio narration and that'd have the same result. Teachers that can only read their notes and write stuff on a board without ever interacting are of the most useless kind. They're completely replaceable by course material.