I never had a decent history teacher until I got to college. It was the course that was given to coaches or other teachers who had a free period since “anybody can teach history, right?” so they just read it to us from the book. The exception was a 70 year old coach (this was in the early 1980s- he was retired from public school but this was a tiny Christian academy) who had an interest in history as he saw it, but that wasn’t exactly a viewpoint backed by most professional historians (or most professional grocers, for that matter). The Depression was caused by Jews, the KKK was the only reason blacks didn’t end up slaughtering whites from coast to coast, Europe didn’t do a damned thing to try and stop Hitler until we got over there, etc…
The worst, though, was a woman who really did have a degree as social studies teacher but who didn’t know and didn’t seem to particularly give a damn about the subject and would read it aloud just like the coaches had done with some mispronunciations that even as a high schooler made me cringe (the “dee med-EESEY family of Florence”, “writer Rude-Yard Kiplinger”, “MIG-well dee Servants” etc.). I don’t know about all states, but in Alabama you only had to take at that time about 3 history (or poli-sci) courses above the Intro-Level to qualify for a social studies specialty in an Education degree- as an undergrad history major I had about 3 times the number of upper level courses you had to have to teach the subject. I think it’s a major reason there are so many people who think history is boring- they were taught by people who didn’t know it.
College teacher that come to mind are a thisclose to retirement Lit Professor who obviously was passionate about the subject but no longer gave a damn about teaching it and turned a blind eye to egregious cheating going on in the room. There was also an adjunct 30-something psychology professor who was more interested in finally being one of the cool kids in the class (hanging out with the cheerleaders and the jocks as “cool teach”- of course they were playing her like a dimestore guitar) to actually teach anything remotely useful and she made a dumbass journal project (I HATE THOSE!) count an inordinate amount of the grade, which majorly hurt me, then she moved to Hawaii at the end of the semester so I never had a chance to challenge her grading of my journal.