TY - BOOK AU - Cruickshank, Donald R. AU - ED - ED - ED - ED - SN - 0138934878 (hardbound) SN - 2 PY - 1980///.;copyright 1980.46 CY - Englewood Cliffs, New Jersey PB - Prentice-Hall KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Teaching.;Classroom management.;Problem solving N1 - Includes bibliographies and index; 5; Professional ER -