The document discusses how communities use rules and laws to promote the common good. It provides examples of rules that help the community, such as paying taxes for schools and fire protection. An activity asks students to think of rules that promote common good in school. The document explains that rules are made for everyone's well-being and safety. It includes an activity where students make up rules for a water park. Overall, the document teaches about how rules and laws benefit communities and encourages students to think about promoting the common good.