In one note app, provide the same functions for distributing a new blank section group to all students, and then distributing new blank sections to that group that already exists in one note 2016. I would use some of the enhancements to section groups requested in other threads if they become available, but a first (and hopefully simple and quick step) would be to just port the existing functions over to the new app.
This is now supported! Check out http://aka.ms/OneNoteJune2019 blog
Mr Barnes commented
The ability to see section groups in the options when reviewing work is also essential. Having created them in 2016 I can not move to the windows 10 app despite preferring the UI as there are too many missing features that I have come to rely on. From a users perspective it would have been better to reduce the disparity between versions before announcing the end of 2016 development.