I teach math at Truman College one of the City Colleges of Chicago (2 year community colleges) as a long-time Adjunct Faculty member. I started using the HUE HD Pro Document Camera in my Calculus 1 and Discrete Mathematics classes in the previous semester (Spring 2020) when they were forced online by the pandemic.
Once I got the Document Camera it made it possible, in conjunction with Zoom, for me to write with pencil and paper and do a full scale lecture/problem solving/Q & A while communicating with my students in real time (and also record it for those who missed the virtual class). I could also share my screen in Zoom to intersperse excerpts from YouTube lectures, MyOpenMath open source Homework website, open source Textbook, etc..
Over the summer I took courses to get officially certified by the City Colleges to teach online
courses. I will be teaching remotely again this Fall for the City Colleges and also at Roosevelt University where I have also been an Adjunct Instructor for many years.
I also used the HUE HD Pro Document Camera to do one on one online tutoring for the Math Center at Truman College which I had done in person for over 30 years.