Where the lecture is given, setup a free wifi from which students must log in with their unique id at the beginning and at the end of the lecture.
Log in on what? Many of our student attendees come from poor districts so I would hesitate to choose a solution that, for instance, assumes every student has a smartphone.
Log in on what? Many of our student attendees come from poor districts so I would hesitate to choose a solution that, for instance, assumes every student has a smartphone.
You could still provide a couple of laptops so they could login if they don’t have a smartphone.