Visibility: Who can see my page?
Check and change who has permission to see your page
Select your page, choose Edit Page and choose the Page Options menu from drop-down next to Publish or Done.
The Visibility section of the Page Options menu shows who can see the page.
To stop a group seeing the page, click on the X next to the group.
The Visibility list will be automatically updated.
If a user or group doesn't have an X in the Visibility list, this is because they have Edit permissions to the page. See Who can edit my page for more information.
The names in the Visibility list may be different at your school: this will depend on your school setup