A simple text and colorful illustrations introduces factorials in such a way that children new to multiplication can grasp and use the concept.

Simple text and pictures introduce the mathematical concept of factorials.

For use in schools and libraries only. Simple text and pictures introduce the mathematical concept of factorials.

For use in schools and libraries only. Simple text and pictures introduce the mathematical concept of factorials.

One by one, ten children move from their old house into their new house with all their possessions. Die-cut windows reveal the interiors of the houses and the book can also be read from back to front.

Each letter of the alphabet accompanies a full-page picture puzzle of an object whose name begins with that letter: anvil, bicycle, etc.

“Masterfully told.”—School Library Journal A great story for children learning mathematical concepts, The King’s Chessboard tells the story of a wise man who refuses the king’s reward for completing a favor. When the king insists the man accept a reward, the man proposes a deal: He will take a payment of rice equal to each square on the king’s chessboard—doubling the amount he receives with each day. This quickly empties out the royal coffers. . . . A Notable Children’s Trade Book in the Field of Social Studies and Outstanding Science Trade Book for Children