Well, first of all someone explains what the lesson is about and who the teacher is going to be. You must treat them as your teacher through the whole lesson. The aim of it is to get everybodys post up so they can go to highschool. There is no double posting. For this example i'm going to be the teacher.

Syaoran

*i walk into class and wait for silence*

Post


Goku

*Crap, i'm in the wrong class i've got no sword! (runs out of class)*

Post


Krillin

*Phew...I'm on time.*

Post


Syaoran

*Good, good. Right then class, today it is sword practice.*

Post


And you just carry on untill the teacher finishes the lesson.

Syaoran

*Right then class, thats all for today.*

Post


Some lessons can last for days!!!
Plus you can be in more than one lesson at a time.