I was always a hard worker, sometimes doing too much. In grad school we knew that getting two or more Cs meant we would be on probation in the program - and possible removed. That just reflected the overall higher quality of student in graduate math, I think.
I work with students every year who seem to believe that not studying is the way to go, not realizing this only works if the material is already in there. Studying will not erase what you know, but can help on some concepts and on memorizing specific knowledge. Of course, if some knowledge is not there to build on, no amount of studying is going to make someone suddenly understand days or weeks worth of work in just one night of cramming.
KYYX - Ohio requires a masters and extra coursework to remain licensed to teach. There is not money offered by the state for this, though some districts and colleges offer support for courses/workshops to meet the goal. The state does offer some academies in specific areas, like middle school science or reading, at no or minimal cost, but that is about it.

