When someone is doing something they shouldn't be, instead of calling them out, ring the bell and draw attention to someone who WAS on task. (She gives a tally.) Makes everyone aware they are being watched without hurting feelings. http://littlestlearners.blogspot.com/2010/06/dingyou-are-now-free-to-start-focusing.html
Classroom redirection without interrupting the class. Copy about 10 of these on a piece of paper, laminate, cut out, carry some in your pocket as you walk around the classroom. If a student if off task or disturbing, lay one on the desk. Later the student should return it to you with an explanation and promise. Great idea for centers.