It is important to think about how to engage students in the course so they are motivated to continue working on it. E.g. via making activities relevant to their lives, engaging them with their peers in interesting discussions, giving them choices in projects.
Speaking broadly, interaction occurs at three levels
Interaction with the instructor
Scheduled live lectures via web conferencing
Scheduled course meetings via web conferencing
Recorded Lectures
Discussion forums
Office hours
Timely feedback on course work
Interaction with peers
Discussion forums
Collaborative assignments
Peer review of course work
Student-led or moderated activities
Interaction with the course content
Assigned readings/videos
Recorded Lectures
Worked examples
Practice problems
Learning activities
See the templates for lecture-based and seminar-style sessions to see examples of all of these.