Differentiation for real classrooms : making it simple, making it work / Kathleen Kryza; Alicia Duncan and S. Joy Stephens Kryza, Kathleen Duncan, Alicia Stephens, S. Joy Individualized instruction. 371.394 KRD Includes index and bibliographical references Thousand Oaks, Calif. : Corwin, 2010. 2010. 2010 Text xvi, 134 p. : eng