[observer12]

My understanding is mandatory homework is all the way up to the university level. If I recall correctly its something along the lines of 2 hours of homework for every hour of instruction at the college level. I could be completely wrong and this might only apply is certain situations but it was a topic of debate in one of my college classes years ago.

I know personally, my grades from about 6th grade on dropped a lot because I stopped doing homework. I didn't need the extra practice to excel in the subject. Funny, because I remember teachers saying it will effect my work habits if I keep not doing homework but in a professional setting I have no problem completing my tasks and researching on my own time.

I personally think homework should be assigned based on individuals grasp of the subject. If the individual needs more practice assign it, if they don't... don't. It incentives learning while still providing resources for those who don't learn as fast or well.