>>10862875There are many reasons to use ocw or any course webpage put up by professors. Say you're learning Commutative Algebra. You could pick up a standard textbook, which will have hundreds of problems, if it's any good. Now it's better to solve each and every problem but that's hardly practical. So you go to OCW, you look at the problems assigned by these experts and try to solve those. Not to mention, they'll have notes, recommended reading, even the textbook references, and on some, even the video lectures, if you're into that. Good luck, Anon.