How are online classes organized

You receive an invitation email before every grammar or conversation lesson. In this email you click
the first hyper-text link. A few seconds later you automatically join others in the online virtual classroom. 

During lessons you take turns in filling out words and expressions in the textbook. You watch what other
students are writing.
You can listen to audio exercises played by the teacher to all students.
Together you work on different problems.
With others you can play various language games and talk all the time.