I probably shouldn't have used "slack off". That has a bad connotation. The students I deal with - at an urban community college - have kids, full time jobs,

I probably shouldn't have used "slack off". That has a bad connotation. The students I deal with - at an urban community college - have kids, full time jobs, heavy course load, etc. They have plenty of valid reasons to slack off. Teachers tend to think that their class is the only thing going on in their students' lives. There is also the problem - at my institution - with a large percentage of students not being interested in learning. They are there for the degree, the piece of paper. It's an economic reality that they need this paper for a better life But still, to get it, one does have to learn and learning is not easy for a lot of people. It requires work and the payoff isn't immediate. I don't know what can be done. I have my own version of Khan videos. I have video book, if you will, and I've tried several times to get students to watch the videos at home and concentrate on problem solving in class. It just doesn't work for me and I suspect there are fundamental problems with the idea.