I have been on the faculty of Computer Science at Duke since 2001. I received my Ph.D. in Computer Science from the University of California, Berkeley and my B.S. in Computer Science from Stanford University. From 2011-2014, I served as a Program Director for the Education & Workforce program in the National Science Foundation's Directorate for Computer & Information Science & Engineering. From 2014-2017, I served as an Associate Dean of Trinity College of Arts and Sciences. As of 9/26/2019, I am currently back at NSF. My interests include computer science education, social information processing, and learning analytics. For more information, please see my CV.