Teaching Commons > Teaching Guides > Technology > Desire2Learn > Tools > Discussions > Participating in Discussions
Participate in discussions by posting a new thread to a Discussion topic or by replying to a thread that has been posted. Users can also use @mentions to direct other users to a thread by tagging them.
To keep track of new activity, subscribe to a Discussion and receive updates by email or text message immediately or as a daily email summary.
The @mentions capability allows users to tag other users in a course within a Discussion thread or reply. When a user is tagged with @mentions, they will receive a notification within D2L directing them to the thread in which they were tagged.
To grade participation in a discussion, view Grading Discussions.