Classroom Settings allow teachers to have control over the member posting abilities for Posts and Comments in the Classroom Feed.  

Follow the steps below for changing the settings of Moderation for commenting on the post:

With Moderation:  Teacher has control to determine the appropriatness of the member communication.

Without Moderation:  Teacher has made communication open and available for parents.

• Click on your class in the left menu 
• Click Settings icon on the top of the class page 
• Click Edit Settings
• Click Permissions
• Click the Can Parents Comment on Post
• Choose Yes with Moderation or Yes Without Moderation
• Click Done