I was in that third category about 25 years ago, finishing my dissertation and needing a few extra bucks. I think the pay was $1300 per course at one school and a whopping $2000 at another. That’s for preparing a lesson and examination plan, teaching the entire semester, grading (often unintelligible) student papers and scoring exams.
I don’t think Barry worked that hard. His students complained that he was usually unprepared and often just talked about sports. I’ll bet they liked him though. He probably gave everyone an “A”. The names of those kinds of instructors are typically well known in any university.
Right. Few people realize just how little the job pays, compared to tenure-track jobs. I think the university counts on them to be trying to make ends meet while finishing work on a degree, or to supplement a starter income on the outside.