DC2 is in Year 2.
They get a live English lesson and a live Maths lesson daily. Typically the lessons last around 30 minutes. It looks like the teacher is doing actual teaching during that time to me when I’ve listened in.
They get another live lesson daily, which rotates around other subjects like science / geography / history / RE / computing / PE and so on.
After each lesson, with the exception of PE, the children have an assignment or worksheets to do based on what’s been taught in the lesson.
They get a “story time” session last thing in the school day, usually in this there’s some general chat about how everyone is getting on, and the teacher reads a short story to the class.
They’re also expected to spend time practicing reading and spelling on the online sites the school has subscribed to, the teacher is checking whether this is done.
Usually the teachers at the school are teaching from school (unless they’re self isolating or having to look after their own self isolating DC), so teaching the key worker / vulnerable pupils and the remote pupils simultaneously. The numbers in school are small enough for all of the in-school pupils to be logged onto Teams on the school computers during the lessons.
Overall I’d say that DC1 (KS2) is getting a bit more online teaching time - same sort of 3 lesson a day structure - than DC2 is, but it’s not a massive discrepancy between the two of them.