In the ""Bank Street Ready-to-Read"" series (Level 2), a gentle fable about the origins of conflict, beginning in the manner of ""The House that Jack Built"": ""This is Dan who bumped [accidentally] into Fran, which started the fight in the schoolyard."" One kid after another ricochets into the accumulating melee until a teacher trips on his way to sort things out and ends at the bottom of a pile of everybody concerned--after which they laudably (if not altogether realistically) figure out what really happened and admit that ""It was dumb!"": ""I used my fists and not my head."" Good lesson, painlessly delivered in a catchy, cadenced text and relaxed, lighthearted illustrations that capture the story's humor.