When Mr. Zachary Kermit, a burnt-out teacher nearing early retirement, is assigned to teach Greenwich Middle School's most challenging students, he's unfazed. However, once Mr. Kermit and his class of so-called "Unteachables" discover their mutual frustration with the education system, they start striving to do better on each other's behalf. Korman keeps this twist on the "inspiring teacher" trope moving at a breezy clip by dividing the first-person narration between five students, Mr. Kermit, and assorted other adults. Though many of the characterizations are slight, and the adult points-of-view serve mainly to advance the plot, the student perspectives ring true. And while their circumstances sometimes strain credulity (it's tough to believe that an unregistered student could escape notice for months), the students' antics-which include a daring vuvuzela heist and a disastrous science fair stunt-are both endearing and entertaining. VERDICT Despite some missteps, this crowd-pleasing school story delivers the straightforward humor and warmth that Korman's many fans expect.