We have forgiveness education curriculum guides here at the International Forgiveness Institute, Inc. for children age 4 all the way up to adolescents ages 17 to 18. We help children and adolescents first understand forgiveness through stories, which are part of these curricula. You might consider once a week having a “Forgiveness Hour” in which you use the lessons from our curriculum guides. You also might consider even a 15 minute Family Forgiveness Forum once a week in which you discuss your own themes of forgiveness that week: How you are working on forgiving, what you are doing concretely to forgive, and how this is going for you.
For additional information, see: Forgiveness Makes Kids Happier.