To “reseat” means to unplug and then plug in a peripheral device when it is not working on the computer. Basically, if you are in the classroom and the camera cuts out, or even the mouse stops working, the first thing to do is to check the USB connection and reseat the device. Read more about reseating devices in this ETS blog post.
Check out this video where Denison’s new Educational Media Technician, Kris Leichtenberg, demonstrates how to reseat classroom devices.