Dr. Rebecca Katsh-Singer is the science curriculum coordinator for the Westborough Public Schools (Massachusetts) and on the faculty at Brandeis University. She received her PhD in curriculum and instruction at Boston College, where her dissertation research focused on the beliefs and knowledge of district instructional leaders about scientific argumentation. Prior to beginning her doctoral studies, she taught elementary and middle school science for 10 years and worked as an instructional coach for science teachers. She has also consulted for research organizations and schools about science curriculum and done extensive professional development for teachers about the NGSS and science practices.