Note, I resubmitted this because I was hoping that it would find http://news.ycombinator.com/item?id=850485 for me. But it didn't. (I later found it through my user name.)
I would delete it, but it has been several years, and so it does not seem bad to have the dupe.
I'm quite happy you reposted as well. I'll be teaching a course (first time teaching full course) next semester, and rereading that post was quite timely, since I'm starting to plan the whole thing.
I would delete it, but it has been several years, and so it does not seem bad to have the dupe.