A moderated discussion allows the instructor to review and approve a discussion posting before the participants may view the post. When a discussion is moderated, each message submitted by a participant must be reviewed and approved before other participants may read them.
Select the Discussions tool from the Tool Menu in your site.
Select the Moderate Topic option in the settings and then scroll down and click Save.
All messages pending approval will display Pending highlighted in green next to the message.
Click on the title of the message to view it.