In your class, under “Class Admin” on the left side panel, click Edit Section


Or in Sections, click ​Content Editor 


Go to Tools tab and click on the Discussion icon



Double click the tool to access Settings 


Click on ​Add Another Discussion to post a discussion 


The Sticky option keeps the specified discussion posted at the top, above all other discussions

      Tone Meter and Like Button
      The Tone Meter is an optional way to receive feedback from people in the class on      
      discussions. You can decide it you want people to "Like/Dislike" the discussion or if they
      found the discussion "helpful" or not