John Hunter is an elementary school teacher in Virginia who is doing something extraordinary and innovative with his students called the World Peace Game. There is a documentary on his work called: World Peace and other 4th-Grade Achievements.
He also did a TED Talk about the impact this game has on his students. Make sure to watch for some extra inspiration!
What I’m wondering is how he is able to set up this game and how does he prepare his students to play this game. I tried to find more information on the webpage: http://www.worldpeacegame.org/ However, it seems like, there is no manual or way to purchase this game as of now. If you are interested in doing this in your classroom, he suggests that you create it on your own!