Click the Add Discussion button.
Enter a discussion title in the Topic Title field .
Add discussion content using the Rich Content Editor . Learn more about using the Rich Content Editor.
By default, all sections in your course can view and participate in the discussion. To specify specific sections for your discussion, use the Post to drop-down menu .
You can also attach files to your discussion .
Select options for your discussion  and add dates specifying when your classmates can view and participate in your discussion .
Note: If you do not set availability dates for your discussion, it can be accessed at any time during the course or section dates.
Click the Save button.
You can subscribe to an entire discussion from the Discussions page. Locate the discussion you want to subscribe to and click the Subscribe icon.
The Subscribe icon will turn green when you are subscribed.
To unsubscribe from a discussion, locate the discussion you want to unsubscribe from and click the Subscribe icon.
The Subscribe icon will appear as an outline when you are unsubscribed.
You can also subscribe within a discussion. Click the title of the discussion you want to subscribe to.
Click the Subscribe button.
The Subscribe button will become green when you are subscribed to the discussion topic.
To unsubscribe from a discussion, open the discussion and click the green Subscribed button.
The Subscribed button will become a gray Subscribe button when you are unsubscribed from a discussion topic.
To reply to the main discussion, type your reply in the Reply field.
Add your reply, links, files, and other media in the Rich Content Editor . If allowed in your course, you may also attach files .
To post your reply, click the Post Reply button .
Note: If you post your discussion response before an attached image finishes uploading, Canvas displays a warning message.
Your reply will be posted at the bottom of the discussion reply thread. The border of your post will flash indicating it has been newly posted. The unread icon next to your post will immediately change to the read icon if Canvas automatically marks your posts as read. However, if you manually mark your posts as read, the unread icon will remain until you manually mark it as read.
Click a discussion title.
Each of your posts have a settings icon with edit and delete options. Click the Options icon on the post you want to modify.
Locate the student reply you want to edit and click the Options menu . Then select the Edit option .
Edit the discussion reply in the Rich Content Editor . To post your edits, click the Done button .
Canvas displays an Edited by label on the edited post. The label displays your name and the date and time the post was edited. This label cannot be removed.
To delete your reply to a discussion topic, click the reply Options icon , then select the Delete option .
Click the OK button.
If you delete a discussion reply with other course user replies attached, Canvas shows a Deleted by notification. The notification includes your name and the date and time the post was deleted. This entry cannot be removed.
However, if you delete a reply that does not have any course user replies attached, Canvas does display a Deleted by notification.
Note: Course instructors can see that you deleted your replies in the discussion.
If your instructor has restricted the option to edit or delete your discussion replies, the options are disabled.