The collaborative teacher : working together as a professional learning community / Cassandra Erkens ... [et al.] ; introduction by Richard Dufour ; foreword by Rebecca Dufour. - Bloomington, IN : Solution Tree, 2008. - ix, 218 p. : ill. ; 23 cm. Includes bibliographical references. ISBN: 9781934009369 RM91.62 Subjects--Topical Terms: Teaching teams.Teachers--Professional relationships.