It seems like there are a lot of new users who join to post homework questions. That's perfectly fine, of course, but their questions are often just copy-and-pasted homework problems without any explanation or work. Those posts are usually voted down and closed quickly, but a sizable chunk of the Close Votes log consists of this type of question.
Can we add something to the help menu, or even some sort of notification upon signing up, to stop new users from doing this? (It may be worth mentioning that math.stackexchange is different from some of the other stackexchange sites in that regard; it's common to post code and expect bug fixes on some of the software engineering sites, and some of the questions on the language sites are simply requests for translating certain phrases.) Right now, these questions are closed with the reason "off-topic because the question is missing context or other details" in the close-question dialog; would it at least be possible to add a reason, on the first page of the dialog rather than in a sub-menu, with a more polite variant of, "We're not here to do your homework for you. Put some effort into your question"?