It's been a LONG time since I was a teacher, but this, once personalized, makes a beautiful home-office desk mat/jotter. 52 pages you can customize, and the embedded art is perfect for the writer or scribe.
I purchased this Apple Scroll Desk Pad for my homeroom teacher. The quality was great and the size wasn't really that "small"; it was a full size 8.5" by 11". I would definitely recommend to buy it if you're looking for a gift for a busy teacher.