Dr. Edward E. Prather is a Professor in the Department of Astronomy, at the University of Arizona (UA). Ed is the Executive Director of the Center for Astronomy Education (CAE) at UA. His research focuses on investigating the teaching and learning of topics in STEM. Ed and his collaborators have conducted numerous research studies to uncover students' conceptual, reasoning and problem solving difficulties over a wide array of physical science topics taught in astronomy, astrobiology, physics, geoscience and planetary science. The results from these studies have informed the development of innovative active-learning instructional strategies shown to intellectually engage learners and significantly improve their understandings, problem solving abilities and self efficacy related to learning about science. Additional efforts have focused on development of classroom assessment tools, educational technologies, and public outreach activities. Ed has also led the development of a variety of education materials in support of several NASA and NSF funded science missions. Dissemination of this work has been provided through industry leading active-learning professional development workshops that have reached thousands of science educators around the world. Through his research, teaching and professional development efforts, Ed strives to create inclusive and equitable educational opportunities for students and professionals in STEM.