Self control bubbles is a great a game to teach children how it feel to have self control and the ability to identify self control at an early age. This activity helps with social and emotional regulation.
Rules for a Happy Day. This activity helps to explain the purpose of rules and laws. It goes with the kindergarten topic Rules and Laws, and I would use the book, "What if Everybody did That?" by Ellen Javernick.
If you didn't start out your year (all grade levels) discussing bucket filling, go back. it's not too late! For great anchor chart activity to go with the book: Have You Filled a Bucket Today? Teach your students compassion and empathy.
What are child rights? This video explains what child rights are through interactions between brother and sister Jack & Ruby. Using simple language, this is a child friendly video that will help explain this to your students.