``How I Can Help Make America Great'' is the subject; Arthur thinks about how much more can be done when everyone helps, then writes his essay—and wins a national contest. His whole class goes to Washington, where Arthur is to repeat his memorized speech to the President, on TV. In typical Arthur fashion, the story is amusing enough—until the end, when an extraneous travelogue is introduced, after which Arthur forgets his speech and the book abruptly concludes. A weak link in this popular series. (Picture book. 5-8)