Khan/khan-exercises — pull request #5976 by rictic (2011-11-10 21:32:21+00:00)
Title: Remind students about the hint system when they get a problem wrong repeatedly

Something I've been seeing a lot in the bug reports are students who have submitted a wrong answer twice or more (surprisingly often it's the *same* wrong answer). The student is often very frustrated at this point, either because they are convinced that they are correct, or because they're having trouble figuring out where they went wrong.

In these cases I think it would be good to draw the students' attention to the hint system.

This commit is very ugly and I'm not attached to this implementation at all, I just want to get an idea of whether the khan folks think something like this would be valuable.