About 10 years ago due to an odd career detour i ended up in a 3 week course that was half science/maths. The problem was i had done science and maths to second year university level whereas the rest of the class topped out at 7 - 9th grade. It was torture and too be honest I resented my time being wasted. I survived by doing Sudoku and crosswords during class but it was awful. And I had made the choice and knew it was only 3 weeks.
ETa. There were a couple of dynamics that made it harder - sexism (I was the only woman) plus a poorly functioning instructor group. But mostly it was just mind numbing.
