The document discusses turning on cameras in synchronous online classrooms. It argues that turning on cameras allows for a sociocultural pedagogy based on social interaction and guided participation. This approach can reboot instruction for deeper learning, maximize opportunities for students and instructors to learn, increase accountability and presence, and help build a community of learners. However, there are also technological challenges, difficulties setting norms across multiple classrooms, and increased cognitive load to consider. Overall, the document advocates turning on cameras to facilitate engagement through visual communication in online education.