Poorvu Center: Teaching Development and Initiatives
https://poorvucenter.yale.edu/graduate-students/about-teaching-development-graduate-and-professional-school-students
The Teaching Development and Initiatives team provides opportunities for you to develop your pedagogical skills while you're here at Yale and as you prepare to teach at other institutions. You can earn a certificate that affirms your expertise, join in community with other graduate teachers, and compete for an opportunity to develop your own course alongside a faculty member. PhD students are also eligible to become McDougal Graduate Teaching Fellows, in which position you can further develop your teaching by facilitating workshops for your fellow graduate students and postdocs.