The teacher of a class has the ability to require approval on posts before they are published. There are two ways to identify if posts need teacher approval:
1.) An orange circle will show next to the "Posts" tab on your class homepage. This circle indicates how many posts are awaiting teacher approval (Hint: By clicking on this orange circle, you will filter the page to view only unapproved posts).
2.) An unapproved post will appear yellow, rather than white.
To approve a post, the teacher must publish the post from his or her account. This can be done by either clicking on the audience link within the post preview on the class homepage, or by changing the status of the post to "Published" within the individual post.