Google Chrome Split Screen Extension

I am slowly gearing up for having Chromebooks in my classroom this fall and will also be testing (since I haven't felt it was good enough until now) Google Classroom.  In that endeavor I found Alice Keeler's Chrome extension (her blog is also very helpful) to let you split your window so you can have your gradebook on one side and the student work on the other.  Of course if you don't want her extension, just watch my video video below on how to do it by opening up two windows.