[andrewce]

I had a calc teacher in high school who did the "recommended homework" thing.

It was amazing, as I could devote however much time I needed in order to be able to identify and then efficiently and effectively solve a given problem type.

This was still at the level where it was a lot closer to arithmetic than actual math (even the most complicated problems rested on just one or two methods which we already knew, and all had an objective, known solution), but the flexibility that it offered me was very useful, given the busy-ness of my schedule that year.