Question

where do I start a lesson here?

Answer 1

You don't. People communicate here. Asking and answering questions basically.

Answer 2

ask whatever you're wondering in the specific category, and try to help others.
Discuss problems with everybody.^^

Answer 3

Well to actually get to the courses, go to
ocw.mit.edu/courses/foreign-languages-and-literatures
This is for sharing and asking questions!!!