Here is a screenshot of what I'm talking about. When the iPad Pro 12.9" is in portrait mode, the essay looks exactly as it would in size on an 8 1/2 X 11 sheet of paper. One of the reasons I purchased the Pro was so that I could grade essays in Canvas more easily without having to zoom in and out constantly.
As you can see, however, when the iPad is oriented in portrait mode, over half of the screen is useless. I can switch to landscape mode, but even then I'd prefer to toggle off the sidebar because it provides nothing of use while grading. When you're trying to leave neat, legible comments, the greater access to the students' paper itself is preferable, especially since Canvas saves the hand-written comments in poor resolution.
