by Dan Gutman.
Told in short snippets from the point of view of several children, this book tells the story of one genius boy who invents a "homework machine" to do his work, and the group of four unlikely kids who come together using the machine. Dan Gutman is an always reliable writer. He brings in enough humor to appeal to kids, enough of a message to please parents, and always just a touch of seriousness to ground the books in some kind of reality. I don't like these books quite as well as I liked his "Baseball Card Adventure" books, but you really can't go wrong with this writer. He does good work.
Here's a link to Dan Gutman's home page: