I used to be a teaching assistant for a class which was ostensibly meant to teach engineering freshmen miscellaneous math and how to program, but the real goal

I used to be a teaching assistant for a class which was ostensibly meant to teach engineering freshmen miscellaneous math and how to program, but the real goal was to get them in the habit of finding out things they didn't know. So many people, when they come across something they don't understand, just freeze up like Windows 95: they don't know something, and it doesn't occur to them to google it, or look for notes on the subject, or ponder the subject from another angle for a minute or so. These are such essential skills that we had a class deliberately constructed so that you would not pass unless you got in the habit of looking stuff up when you don't know it. A few years later, a lot of the students said it was the most valuable class they'd taken.