Raising the bar and closing the gap : whatever it takes / Richard DuFour ... [et al.] - Bloomington, IN : Solution Tree Press, 2010 - xii, 243 p. : ill. ; 23 cm. Includes bibliographical references and index ISBN: 9781935249849 (perfect bound) 9781935249856 (library binding) RM137.50 9781935249993 (perfect bound institute edition) Subjects--Topical Terms: Effective teaching--United StatesSchool improvement programs--United StatesEducational change--United StatesLearning