Hi Cindy, for instance you can state the number of days they need to be active in discussions, how many learners they need to interact with in discussion, the expectations for learners if they get behind, policies and procedures. You should also make it clear what they can expect from you in regards to the turn around time on grading assignments, how you will interact with them in discussions, etc. By setting expectations at the beginning of the course, you can keep from disunderstandings, frustration, and unmet expectations from occuring. Tina