For teachers, the MyClasses view has all the relevant information including username, password and device(s).  Generally, at the beginning of each school year, I create a spreadsheet with the same information to share with teachers for a one stop lookup and to print the information out (on labels via a mail merger) for teachers with younger students for use in class as well as to send home.

Is there a way to export username, password, and device info by teacher? Better still, can teachers export the data?