> People also need to realize, college instructors aren't paid to teach. They're paid to research and so of course they'll be lazy on sharing what they've learned from teaching.
Tenure-track professors are rewarded mostly based on research, but many classes are taught by lecturers, instructors, adjuncts, and other non-tenure-track teaching staff. These people should care about teaching efficacy, though they are often overworked (see below) so perhaps they just don't have time.
You say overworked, but I think underpaid is the more important aspect to consider for that class of teaching positions. The effort/compensation ratio is not incentivizing.
>Tenure-track professors are rewarded mostly based on research, but many classes are taught by lecturers, instructors, adjuncts, and other non-tenure-track teaching staff.
But a lot of those people are teaching to pay the bills as they do research in an effort to get on the tenure track.