Hi I'm a Second Year Student at Abertay University. In First Year I had 3 hours of lectures a week, and 6 hours of practicals a week. Currently with covid, I have the same amount of lectures online. 3 hours a week since September.
That is very alarming how it's only 9 hours total since September. I'm not sure if it would depend on the course, but definitely should be getting more lectures.
Maybe with coronavirus the lectures are pre recorded somewhere online that maybe your son hasn't seen? My first couple of lectures this year were live, but rest have been recorded. Ask your son to fully check the online platform Uni of Nottingham uses for recorded lectures. A few of my friends forget to check sometimes, and they have lectures to watch.
Hope this helps in some way, and give you some insight into how my experience has been.
Paddy.