We are hosting a one-day symposium titled “Developing and Assessing Students’ Critical Thinking Skills.” Our goal for the symposium is to encourage Connecticut STEM educators to exchange ideas about methods that promote the development of critical thinking skills in the classroom and tools for assessing them. We have confirmed two keynote speakers for the symposium: Dr. James Rolf from Yale University Math Department, who will present data on flipping the calculus classroom, and Dr. Jennifer Knight from the University of Colorado-Boulder Molecular, Cellular and Developmental Biology Department, who will speak about developing assessments to evaluate critical thinking skills. Each keynote talk will have an associated workshop that will provide attendees time to work one-on-one with teaching fellows and faculty trained in scientific teaching practices to incorporate activities and assessments into their own course topics of interest. The day will also include a panel discussion on how to engage students in the flipped classroom. All STEM faculty, staff, graduate students and postdocs with an interest in scientific teaching practices are welcome to attend.