In the video below, I go through the simple steps of setting up a class in Microsoft Classroom. It’s straightforward but does require teachers to manually setup and keep class membership up-to-date. Third party integration to MIS databases will be available soon in the UK (hopefully). In the meantime you can use a similar assignment system called Teacher Dashboard which has the option of syncing AD and Office 365 groups.
Microsoft Classroom is a great out-of-the-box product but doesn’t allow much customisation so you may want to think about some custom class and subject sites as part of your portal. Please feel free to contact us for a demo of these at Cloud Design Box.