Have You Filled a Bucket Today?: A Guide to Daily Happiness for Kids (Bucketfilling Books) - Carol McCloud, David Messing

Have You Filled A Bucket Today? is a great start of the year book. It's aim is to teach children the importance of being nice to those around you. It's also a great illustration showing that one person can't constantly pour out to others without being poured into as well. I could even place buckets at each table and drop little fuzzies inside to fill that group's bucket up. Grade level, first grade.