Nearpod

With Nearpod, teachers interact with students and view student responses in real time, enabling students to take ownership of their learning rather than passively viewing a teacher-directed whole-class presentation. Teachers can control the timing or launch homework sessions in which students move through at their own pace. Either way, it's easy to see who is and who isn't viewing the presentation, which helps with classroom management and reinforces appropriate use of technology in the classroom. Source: Common Sense Media