David Crismond is an Associate Professor at the City College of New York’s School of Education, and has a courtesy appointment with the Grove School School of Engineering. He earned a MS from MIT’s ME department, an Ed.D from Harvard’s Graduate School of Education, and with NSF funding, has developed design-based STEM curriculum and teacher professional development materials. His research interests involve K-16 integrated STEM learning and teaching, with a focus on use of science and math concepts in the context of doing hands-on technology investigations and engineering design tasks. He and colleagues have developed a framework that describes key dimensions of teachers' design pedagogical content knowledge, and guidelines for them to create video-based teaching portfolios and reflect on their practice and student learning with design activities in STEM classrooms.