Teaching that is responsive to students' ideas can create opportunities for rigorous sense-making talk by young learners. Yet we have few accounts of how thoughtful attempts at responsive teaching unfold across units of instruction in elementary science classrooms and have only begun to understand how responsiveness encourages rigor in…

One goal of project-based science is to promote the development of scientific discourse communities in classrooms. Holding rich high school scientific discussions is challenging, especially when the demands of content and norms of high school science pose challenges to their enactment. There is little research on how high school teachers enact…