In grad school, I taught a couple classes and got good student evals. But no faculty member was really involved in overseeing my instruction.
Now I'm applying to faculty jobs, and I see a few of them ask for recommendation letters where one of the letters should focus on my teaching ability. But I'm not sure how anyone could evaluate this. Who should I ask? The graduate director, who gave me the teaching assignments? My thesis advisor, who doesn't know anything about how I teach but maybe would be kind enough to say something nice anyways?