Each year the county in which I teach has a program called "Melt Down, Shape Up". You get teams of 10, go as a group and weigh in (as a group on a cattle scale), that's a hoot!! Then, individually you weigh, get height, measurements, and fat count. (fun) Each person keeps up with miles each week, a chart is provided for different activities, such as, biking, working in yard, aerobics, so on. We turn in our miles each week--at the end of 6 weeks--go back weigh as a group and then have each thing indiviually done. This really keeps us on our toes to lose the weight!! There are individual and group awards, this has been a very positive activity for our county and it seems to grow each year.