Our school rules are:
1) Be safe
2) Make good choices
3) Respect ourselves, others, and things
4) Do your best

At the beginning of the school year, each teacher discusses with their classes what each rule looks like in their space. For instance in PE they translate to 1) were kids in control of their bodies and equipment, 2)did we get along (cooperation and sensitivity to others), 3) were we good listeners, and 4) did everyone participate and try their best in "all" activities. At the end of class, when the students are in line, I ask each of these questions. The students vote by raising the appropriate number of fingers: 4 fingers- all kids, 3 fingers- most kids, 2 fingers- about half the kids, and 1 finger- only a couple of the kids. 4 fingers is a perfect score for that question, and 16 points is a perfect score for the class. The line leader gets to write the score on the poster which is located on the wall at the front of the line. Because this is daily routine, it takes only a minute at the end of class. It's a great way to get the class ready to transition back to class and lets the classroom teacher know how class went. The students strive for perfect scores and the scores are self rewarding (no other incentive is required). If we are running short on time, and I want to skip points, the students won't let me- it's that important to them!

If one day the students receive a low class score, we start the next class with a quick reminder of what area(s) we are working on. The next class almost always improves in that area(s).