Last day before vacation

Today was my last day this week. I had the Imaging science class in the morning as usual, and did some more testing in the afternoon with the PVA. Stretch, Treat, Record, and Repeat. The film is polarized so it is actually working to that effect but we are still having trouble finding a way to get it to stay flat and neat. Also, before I left today, I took the first test of the Imaging science class. I did not think it was that bad at all, but I should probably wait to say that until after I find out my grade. I kind of wish I could stay the rest of the week but I really want to go on vacation so my next day is monday.