Set in 1960's Cleveland, Ohio, follow 6th-grader Rufus Mayflower as he and his friends use real-life mathematical problems to help their budding business making toothpaste succeed.
A book that engages the young reader in following the bus driver’s instructions not to let the pigeon drive the bus while he takes a break. The children are in charge as they respond to the pigeon’s pleas to let him take over.