Introduce the concept of using words to express feelings instead of blaming someone else or using physical force. You're a jerk. You never do anything right. Read a story aloud to the class. Have the kids identify the conflict.
Students can then draw a picture showing how the conflict can be resolved or write their own ending.
Write a group story with students contributing ideas for characters, conflict, and how to resolve the conflict. Have the class draw illustrations and create a book which can be kept in the classroom to be read by the students. Have students identify several conflict situations that often occur between people their age. Divide a sheet of paper in half or create two lists on the board. Make up two endings.