A few students blow off the work. The overwhelming majority do not. Sorry to be hurried on this issue that demands more attention that I can offer right now. One last thing. I think it is important to take the side of the students, especially the most oppressed among them.
Life travels upward in spirals.
Those who take pains to search the shadows of the past below us, then, can better judge the tiny arc up which they climb, more surely guess the dim curves of the future above them.