I have tried Edmodo for the past one semester and I am quite satisfied. I will move all my classes' announcement to Edmodo from now on. Basically, if you are one of the students in my class, what you need to do is:
- Go to www.edmodo.com
- click "I'm a student"
- enter the group code. I usually give the group code on the first day of class. If you missed that one, send me an email indicating your full name, your class, and the modules you are taking.