Well I teach online and happy to do so. I am still getting my salary and grateful for it. I teach the same material as in class. My students have the opportunity to ask questions or let me know if they do not understand something. Now the students logging in is something else. Many students sign in then do not respond when asked a question (are they really there?) I have had students telling me they are out with their parents??? or they are visiting relatives, gone shopping etc. I applaud them for being honest but why do their parents allow this? So in my view, online teaching works but students and parents must be willing.