<p>I have been looking for an answer to that question online, but can't seem to find a definitive one.</p>
<p>Professors. TAs lead recitations, which are the add-on hour once-a-week only occurring in the introductory courses.</p>
<p>crescent is right (just thought I’d verify it). I’ve heard this question asked to multiple penn students and addmissions officers and they’ve all said the same thing</p>
<p>Do TAs ever teach any classes? At any schools? I’ve honestly never heard of that happening anywhere. They’re deemed TA’s for a reason…they assist the actual teachers (professors). Otherwise they would be the professors.</p>
<p>I did have one Wharton class in which a graduate student was the only instructor. Honestly, though, he was better than more than half the professors I have had in Wharton. It doesn’t always necessarily take a professor to teach the material you will be learning and quality of instruction is not necessarily better with a professor.</p>
<p>Two of my favorite professors at penn were grad students. Sometimes professors will have grad studets guest lecture one session because they are specializing in that topic. Usually it’s grad students towards the end if their studies. I figure if they are a year or so away from going to another top school to teach, it’s not the end of the world if they get some practice here.</p>
<p>It’s the same deal in the College. Professors teach, and in large lectures TAs lead recitations, aka discussion sessions. Graduate students mostly only teach classes at night.</p>