Brian J. Reiser is professor of learning sciences at Northwestern University. Dr. Reiser’s research examines how to make the scientific practices of argumentation, explanation, and modeling meaningful and effective for classroom teachers and students. Dr. Reiser heads the Next Generation Storylines project, which establishes researcher-teacher teams to develop NGSS aligned storylines, in which students help manage the trajectory of their science knowledge building. Dr. Reiser is also a co-leader of the Next Generation Science Exemplar System project, which has developing practice-based professional development in use by thousands of teachers across the U.S. Dr. Reiser is also a member of the National Research Council’s Board on Science Education. He has served on the NRC committees authoring the reports A Framework for K-12 Science Education (the framework that guided the development of the Next Generation Science Standards), Developing Assessments for the Next Generation Science Standards, and Guide to Implementing the Next Generation Science Standards. Dr. Reiser earned his Ph.D. in cognitive science from Yale University.