After students watch an online lecture, what do they know? What do they think they know? How do you know what they know?
Instructors just venturing into online learning often have the valid concern that they might not be able to tell if their students are “getting it.” Without being able to see students during the lecture, they won’t see the encouraging nods, the confused raised eyebrows, the glazed-over look of boredom. And when your students have so many potential distractions available on the Internet just a click away, it can be troubling to not know how much of their attention you have when they’re watching your lecture.