What makes someone a good teacher? In this chapter, I deal with this question in two steps. In the first part of the chapter, after having identified understanding as one of the fundamental goals of education, I identify a set of skills and social-epistemic virtues that a teacher must exemplify to perform her job well and to promote understanding in an educational setting. I focus on the virtues of intellectual honesty, epistemic empathy, and epistemic care. In a second step, I apply the results of my analysis to the philosophy of AI and deal with the question whether, and to which extent, ChatGPT is (or could serve as, if suitably modified and fine-tuned) a good teacher for its users. An important result of my arguments will be that while ChatGPT has at least the potential to excel in epistemically empathetic behavior, it is destined to remain incapable of caring epistemically about its users. I close with some reflections that point to further directions of research.