Flags allow you to identify presentation material that you find confusing or for which you need more explanation.
Bookmarks allow you to identify presentation material you want to return to later, to re-review or take notes on.
Bookmarks let you mark locations in presentations or videos so you can find them quickly and easily, without having to page or scrub through the presentation/video.
To bookmark content
Did anything happen? If your Notes panel isn't open when you click to bookmark a location, it will look like nothing happened. Don't worry, the bookmark is there, in your notes. Re-clicking the bookmark within 30 seconds will un-bookmark the item however, so try not to be too click-happy.
Once your content is bookmarked, the Bookmark appears with your Notes. This allows you to click the bookmark and go to that location in the presentation/video (whichever you selected to bookmark).
Flags let you mark locations and material that you find confusing or items you feel the instructor may need to explain further to you or the class. Flagging content sends a notification to the instructor, letting them know that a student had some problem with the material. The notification flag includes the location of the presentation at the time it was flagged.
To flag content for clarification