Mary's heart pounds when the second-grade teacher in her new school says, ""I want each one of you to stand up, say your name, and tell us one thing about yourself."" As Mary fears, someone giggles at her stuttered statement. It's Marvin, whose subsequent mocking continues to aggravate her problem. Still, some of the girls readily invite her to join them, and when Marvin steals their rubber-band jump rope they jail him in a garbage can, where he sticks. A discussion with her mother reveals that stuttering is an old family characteristic; with her encouragement, Mary agrees to work with a speech therapist, whom she likes immediately. When a garter snake that Marvin's father has brought in to school escapes, Marvin stands by terrified while Mary catches it and becomes the class hero. Kline gives an entertaining glimpse of the challenges and successes of school life while offering a positive, sympathetic look at a common problem. A chapter book that transitional readers will enjoy. Illustrations not seen.