Good news! Your classes from last Fall are still available AND condensed so that you don't have too many classes on the page at once.
What is the quickest way to add all 6 classes at once? Mass add (this is faster than Illuminate)!
Junior high school teachers instruct the same class multiple times throughout the day. By Linking Gradebooks, the teacher needs to add the assignment to one class only. Aeries will copy the assignments to the other classes with no additional work.
When a class (or linked group) is first created, the teacher needs to Manage Gradebook.
I highly suggest that you you Add/Drop Students Automatically and Hide Dropped Students (see image on the left). Otherwise, you will need to manually complete this task (see video below).
Even if you have multiple classes, you only need to add students ONE time.