You can have a look at your class notes during the week. I also recommend you reading books adapted to your level and interest, as a lot of input is absorbed by this. Besides, lessons will be recorded, so that you can revise them or catch up, if you miss any (when doing the course in groups).
There is a little optional (unmarked) homework in the Beginners’ course.
In the Advanced Beginners’ Terms 1 & 2 there is optional homework each week to practice writing, which is marked for you and feedback given.