Bully B.E.A.N.S. is a fantastic story about children who stand up to a new bully, Bobbette. They eventually tell their parents and teachers about the bullying, and we learn that Bobbette was bullied at her old school.
This story is perfect to read in 1st-5th grade, since bullying is an issue in just about every grade. Students can be given a pack of "bully beans" (jelly beans) and if they are bullied, they can eat one and write about it in a journal or on a note card and give it to their teacher or counselor. For the older grades, 4th and 5th, you can even have your class act out a bullying scene in groups and have the rest of the class, the audience, decide what needs to happen or answer questions throughout the group's skit.