I want to give you all a "heads up" that the way that students log into Macs has changed on the most of the Mac computers. Instead of using the "student" or "MS" accounts, students now have their own login credentials that align with their "Google" logins. These logins do not include the "@anconaschool.org" portion of their Google login, but are otherwise identical.
It is a good idea to have students use try to use the same few computers, as the first time they log into a particular Mac it takes a few extra seconds to create a "local" account on that computer. For apps that store data "locally" like iMovie, it is essential that students use the same computer each time they work on their project. Note that it is best that students log out of the Mac when they are done, although the Mac will automatically log itself off after about 30 minutes of inactivity.