Senior Instructor • Director of Sommers-Bausch Observatory • Astronomy education research
Department of Astrophysical and Planetary Sciences

Office: Duane D317

Dr. Seth Hornstein is a senior instructor in the Department of Astrophysical and Planetary Sciences (APS) at the University of Colorado at Boulder since January 2007. He earned a B.S. in physics from Virginia Tech in 2000 and his Ph.D. in astronomy from the University of California, Los Angeles in 2006. At CU, his primary responsibilities involve contributing to the teaching reform of the large (~200-student enrollment) introductory courses. He has developed unique ways to transform these large courses into more learner-centered environment through the use of Peer Instruction with clickers, classroom discussions, and Lecture-Tutorials. He serves as lead mentor for undergraduate APS majors with career interests in teaching and is the department coordinator for the Learning Assistant program (a university-wide program to recruit and prepare talented science majors for careers in teaching). Since 2008 he has been working with the Center for Astronomy Education's Collaboration of Astronomy Teaching Scholars (CATS) team and the STEM Teacher and Researcher (STAR) program.