In this announcement, the Institute of Education Sciences (Institute) requests applications to form Research Networks Focused on Critical Problems of Education Policy and Practice (Networks). The purpose of the Networks program is to focus resources and attention on education problems or issues that are high priority for the nation and to create both a structure and process for researchers who are working on these issues to share ideas, build new knowledge, and strengthen their research and dissemination capacity. The ultimate objectives of the Networks are to advance the field’s understanding of a problem or issue beyond what an individual research project or team is able to do on its own and to assist policymakers and practitioners in using this information to strengthen education policies and programs and improve student education outcomes. For FY 2017, the Institute invites proposals on two topics: (1) Exploring Science Teaching in Elementary School Classrooms (Science Teaching Network) and (2) Scalable Strategies to Support College Completion (College Completion Network).