TY - BOOK AU - Cohen,Elizabeth G. TI - Designing groupwork: strategies for the heterogeneous classroom SN - 0807733318 (acid-free paper) AV - LB1032 .C56 1994 U1 - 371.3/95 20 PY - 1994/// CY - New York PB - Teachers College, Columbia University KW - Group work in education KW - Interaction analysis in education N1 - Includes bibliographical references (p. 189-195) and index ER -