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School Library Journal
Reviewed on September 1, 2011 | Grades 5-up
Gr 3–6—Adler uses a mystery conceit to introduce algebraic equations and problem solving. Collaborating again with Miller, and using a Halloween theme, he employs the concept of a "mystery number" or variable that creates balance in an equation, showing how those numbers will be represented by letters. He begins very simply with illustrated examples of equations that many readers will be able to do in their heads. Once the concept is established, he continues ...Log In or Sign Up to Read More
Horn Book Guide
Reviewed on January 1, 2011
Children are introduced to algebra through a haunted house full of mysteries. Spooky word problems demonstrate...Log In or Sign Up to Read More
