The most useful high school classes I took: Marine Biology, Electronics, and Graphical Engineering. They weren’t such great classes but were classes I took just because I liked the subject. I think there is too much focus nowadays for 13-18 year olds to specialize their learning to specific subjects or career paths and I think these deviations from the straight academia was the best thing high school gave me. It instilled a confidence to learn new things and work in new ways.
I would say English class if mine had been any good, but they weren’t so I won’t. However, I would say the English (not literature, but grammar) I did learn has been of supreme importance to me.
Least beneficial: PE and health. The health taught me nothing new. The PE only instilled a hatred for physical activity I had to work hard to overcome. (Thus the unconventional college PE classes.) And I had to take a study skills type class in both high school and college which was stupid and did no good.
In college, I would say the best classes I took were Humanities, weightlifting, and sailing. The latter two for the same reason as the previous. They were challenges and required me to be open to learning and doing new things. The Humanities class I took tied together so many subjects–art, music, history, sociology, religion, cultural anthropology, archeology, etc, etc–and it was taught by such a superb professor that I believe it finally allowed me to take everything I had learned and grow with it, to look at it critically, and to see uniting and dividing themes. It was one of the few classes I would say I actually learned something (instead of just memorizing it). My very favorite classes at the university, though, were the honors symposiums. We had lecture each week with all the students in the college and the lecturer was some great person in the field, then we had our discussion classes of less than 10 students per instructor. We read all great books and researched and studied and discussed them while learning from some of the most preeminent scholars in their field. The great books themselves inspired and educated me, the atmosphere challenged me, and the joy and love of learning that was almost palpable really encouraged me to love learning for the sake of learning, and to see it as an end and not a means.
I plan to go back to college just for fun, and the types of classes I’m interested in are not necessarily things my life needs, but things I feel will give it greater texture and depth. I want to take sculpture welding, foreign languages, histories (both broad histories as well as focused historical places or peoples), and to continue with the symposium type classes, no matter what field they’re in. I’ve seen everything from music in the 1920s to architecture in ancient Rome that spurred my interests. There have been a few classes I’ve noticed over time that also looked interesting like working an archaeological dig or in a research collection lab, some technical/electronics classes, and random hobbies like underwater basket weaving. While I think the math I took through high school was important (calculus), I don’t think I need any more. I also don’t care for any introductory classes that skim a wide range and never explore any issue at depth. I’ve had enough introductions. Now I want to learn.