Could not stand high school geometry class, did no homework, then did the entire year (or half year, can't recall) the last day of class and turned it in.
Ditto. At university, I typically showed up for tests (unless there was material presented in class that wasn't in the textbook) studying and do the problem sets the night before. This freed up a lot of time to delve into other interests.
However, I don't possess a flawless long-term memory. That caused me to struggle with Chemistry II, since I delayed it until a year after taking Chemistry I. At L.S.U. for Chemistry I, I placed in I afair in the top 5 out of a couple hundred students in 3 sections. I went through severe depression (culture and climate shock from leaving California, as well as no family visits nor communication) that caused me to drop out of L.S.U. after the first year and restart my studies in California (where I graduated from High School), so perhaps that emotional stress caused to forget everything about Chemistry I.