The door is closed on my final class of this semester at UMBC. My students showed us their work, I shot some photographs of each, and I gave some parting advice to a few people before leaving. Now I have the larger task of sorting out the midterm evaluations and going through final grading. There are a few who will be easy to grade; I had some standout students and some who will simply fail. The tricky part is evaluating the students in the middle, some of whom made great progress in conceptual thinking but still delivered subpar work (or missed today’s deadline).