Game Day/Snack Day is a behavior incentive I created for my middle school students to get them involved in class in a positive way. It is the best activity I have ever used to help students embrace positive behaviors by getting them to meet my class rules of being prompt, being prepared, being positive, being respectful and being responsible.
Since the students are now allowed to participate unless they get all assignments caught up and meet an an acceptable grade level, it is amazing how quickly the work gets turned in and what the students will do to improve their grade on assignments!
I get the benefit of their self motivation for an improved grade and I don't have to chase down assignments, they get delivered to my desk!
Every teacher that has used this concept said they "would use it forever".