Many of my courses are deeply etched in my memories. Static Fields followed by Dynamic Fields in the EE department. A survey course covering Lisp, Snobol, and Prolog. A C99 class covering engineering traffic flow. My first Fortran course where I figured out how to get the compiler to spit assembly language. A course in General Semantics which vastly influenced my thinking. Linear Algebra course, which was the only college math course that I aced.
The beginning circuits course learning about Kirchhoff's law. A control system theory class. And working with my eventual advisor who was studying control feed back systems that caused the Bonneville Power Administration network to oscillate in frequency.
And there was a lot of non-class stuff that you seem to get just hanging around, like the Marshall McLuhan medium talk, Larry Atkins who wrote the champion chess program that ran on the CDC 6600 (No, he would insist, it is not Artificial Intelligence--just good engineering). Reading Dijkstra's paper "GOTO considered harmful" which was absolutely true in spades for Fortran II. Keypunching jobs for running in the batch processing mode of the CDC 6600. And seriously fun co-op jobs.