Prevent users from seeing browsing each others home directories

Is there a way ( through Workgroup Manager / Sharing I assume ) to prevent users from seeing, or browsing through other users home directories after initial login? Ideally I would like users ( students ) to login, and go directly to their home folder, instead of the way it seems to work by default ( they login, and see the list of other users on the network share ). Thanks! OS X Server 10.4.10