I need ideas for how to handle students who just don't do homework. About 60% of my students just don't do anything that isn't completed in class. One of my subjects really requires outside work for the kids to learn it, but they won't study so I have to give homework. Except most of them won't do that either. I've tried calling home but it doesn't seem to help with most of them. A few parents will get involved if I call about one assignment but its still a daily issue with every new assignment. I don't have the ability to do a true detention because of my extracurricular duties, and I feel as if I have no true way to motivate these kids to get things done. We also aren't supposed to give zeros and have to take late work right up until the end with no penalty. What can I do?