We are a 1:1 iPad school, and using the annotate feature on the iPad is quite tedious. The teachers need to individually click on each student, then click the "annotate" feature, then scroll down and wait for the file to load.

If there was a feature similar Google Classroom, where each assignment would auto-load, and you could use next and previous arrow buttons to go back and forth between students, it would be very helpful. (Or even a setting the teacher could manually turn on to auto-load all annotate assignments instead of having to click the "annotate" button for each student).