I found teachers who gave busy work to be extremely annoying. There was no point in the exercise and did nothing to help further my learning. I believe that parents are crossing the line only if they do their kids homework without the kid working on it at all. This doesn’t allow the kid to learn what they are being taught in school. However, I find it okay for a parent to tutor a kid when they have difficulty on a certain subject. I had difficulty in high school with AP Chemistry and instead of paying lots of money to hire a tutor, my parent explained to me what I could not understand. I also think it is okay for a parent to study with a child where a parent would quiz the child on information in the textbook the night before the test. I’d only recommend doing this if the kid has bad study habits as a way to build up good study habits or if they have trouble with a certain subject to recall more information about the subject. If a parent does this when it’s not needed, it could serious issues where a child is unable to study by himself and needs the assistance of his or her parent to study. Overall, I think the line that parents cross when they help their kids too much with homework is a very gray line. It’s more of a case by case scenario. Like what others said, if the assignment is a useless arts assignment in a class that should not focus on arts, then I believe it would be okay for the parent to do the assignment because the child does not get anything out of doing it besides some arts practice. My advice is to help your kid enough that they can learn but not too much that you are just spoon-feeding them the information. Like what my AP Physics teacher told me, give a man a fish and he could feed himself for a day; teach a man how to fish and he can feed himself forever.