<p>Right, like most have already cleared up, the stipend is it (well, they pay for an $1800 health insurance plan too) but yeah, no teaching salary. In some departments you teach one semester as a requirement of the dept, others it’s two. One dept I know of you may have to teach 3-4 years to keep getting the stipend depending on how well funded your PI is. I have heard of some places where you can get extra money if you take on additional teaching duties, but your PI would have to approve it and it would cut in on your research time, so very well may not be worth it.</p>