Eleven-year-old Nora has been secretly hiding her extraordinary intelligence from her parents and teachers, and still trying her best to do badly in school to prove to herself as "nothing more than average." To disguise her intellect, Nora observes and emulates her classmates so she doesn't stand out. She becomes interested in one of her classmates, Stephen, and they become friends. When their CMT scores come out, Stephen's low scores convince him that he is stupid as students start treating the scores as a competition reflecting their intelligence. To encourage Stephen and prove the CMT scores are meaningless, Nora deliberately gets a bad report card: all Ds except for a C in spelling. Nora admits to Stephen that she is actually a genius and he comes up with a plan to prove grades don't reflect everyone about a student. He intentionally tells the school's gossip, Jennie Springs, that Nora is a genius. As word spreads, Nora begins to act like a snob and challenges teachers by bringing up topics that have not been taught in class yet. When she is confronted by the principal, Ms. Hackney, the next day for scoring a zero on her last three tests, Nora explains that she dislikes grades because they cause too much competition. She stays home the next day, pretending to be sick, but gives up her ploy when she discovers that Stephen has started a campaign for all students to rebel by scoring zeros on their next tests. During a school meeting, Stephen and Nora apologize on behalf of the involved students before the whole school. Nora expresses that she thinks grades cause too much competition, it causes the extra smart kids to be all snobbish and stuck-up, and the normal kids to think they're dumb. Mrs. Byrne supports Nora, saying that she did think grades were getting too much attention. Nora tells her mother and Ms. Hackney that she does not want to be promoted to special classes, as she prefers to stay normal. After the meeting, Nora says goodbye to Stephen for the day and tells him she's glad that he treated her normally.
