This interaction is mainly for you (the teacher) or other tutors to:
Provide individual student feedback
eg: you want to assess the work of an individual student online
Communicate with students asynchronously
eg: you would like to engage in ongoing online communication with students not using email
Work collaboratively with students on documents
eg: you want to provide online feedback directly to a paper a student is writing
Assess learning asynchronously
eg: you want to create an assessment task for students to take outside of class time