Colin Wallace is a Teaching Associate Professor in the Department of Physics and Astronomy. His research work focuses on identifying conceptual, reasoning, and problem-solving difficulties students experience when studying physics and astronomy. He has developed many pieces of research-informed curricula, including the Lecture-Tutorials for Introductory Astronomy, which are used by tens of thousands of college students across the nation. He leads professional development workshops across the country on effective teaching and assessment. Since 2017, he has been the director of UNC’s Summer Institute for College Teaching, a week-long professional development experience in which participants learn how to foster diverse and inclusive classroom environments; design learning goals; optimally implement active learning techniques; and assess the quality of their instruction.