This sketch has 8 layers of data – 1 per semester – showing # of courses by faculty. The area of each square shows the total # of students in each faculty’s courses (square root of the number to convert to an area). I need to think more about how to visualize time – just smushing all 8 semesters together gives a nice aggregate, but doesn’t show any temporal information…

and a bonus screen recording to show how the sketch was put together…