This has been a banner month for books at our house. We have read so many good ones. This one might be the very best."The Toothpaste Millionaire" is written by Jean Merrill, who also wrote the "Pushcart War." It has a boy hero and a girl sidekick, features a lot of math, and has a plot that revolves around turning your ideas into inventions and making money. Excellent.Supportive math teacher - he is a great character.Set in Cleveland, OH. This is a keeper.