Running an imported package
You cannot just copy an application from one web2py installation to teaching-mode-web2py. You must package it an import it.
Only the admin can see the app even if another user imported it and even then only the admin can run it, not edit.
I've encountered a problem which I am going to try to see if I can reproduce where trying to access the admin interface I encounter a redirect loop. This occurs in both Firefox and Chrome but is remedied by clearing the cookies.
I also lost all of my test users from yesterday. The teacher was fine though. I have no idea on how it happened.
As a suggestion the teacher should at least be able to uninstall a student's apps if not given full control.