The Driving Question Board (DQB) is an organizing tool used in the project-based curriculum described in this study, which serves as a visual organizer for all the curriculum’s contextualizing features. In this chapter, the authors report on the pilot of a sixth-grade project-based unit on light at three different schools—urban, suburban, and rural—and follow the use of the DQB by students and teachers at three sites. It was found to foster students’ learning of both content and processes. The results provide strong evidence for improving student content knowledge in all the classes, regardless of social and economic conditions, as well as teacher instruction.