Tiene, Drew. Exploring current issues in educational technology / Drew Tiene, Albert Ingram. - 1st ed. - Dubuque, IA : McGraw-Hill, c2001. - xxi, 331 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 0072304804 LCCN: 00036129 Subjects--Topical Terms: Educational technology.Constructivism (Education) LC Class. No.: LB1028.3 / .T58 2001 Dewey Class. No.: 371.33