Give students confidence in working with fractions and increase their understanding by using manipulatives. Students will build upon previous math understanding and be challenged by an optional pre-algebra chapter. The Teacher's Edition offers skill practice and spiraling review, explains how to use manipulatives, and provides information about fact memorization and mental math computations. The student text provides activities using an aviation theme with Mandy Newton, a nursing student, and her dog, Rotor. Students will gain confidence in working with fractions as well as other basic math operations. - Publisher.