I almost never did homework. Well, do homework, since I'm still in school. I'd do some science stuff, and some writing stuff, but other than that I didn't really do it. Especially in high school, my ability to bullshit and get by through listening to the teacher's lectures was enough to have me pass all my classes and end up in the top 15% of my graduating class.

I'd recommend using homework as a supplement, don't rely on it for teaching the kids how to do stuff. Present it as something that will help them, but isn't required. Maybe a bonus grade on top of your regular grades if you want. I know if more of my teachers made homework optional and only beneficial, I would have done all my homework.