Preview Files in Google Drive

Press P to Preview in Google Drive

Press P for Preview

I like to describe Google Classroom as Google Drive management. When reviewing student work on the assignment assessment screen, notice the Google Drive folder icon below the Done count.
google drive folder

This will launch Google Drive to view the student’s assignments in Drive. Opening documents can be slow depending on internet speed. Pressing P to preview the file opens it faster. Use the arrow key to preview the next student’s document.
P to Preview