TY - BOOK AU - Johnson,David W. AU - Johnson,Roger T. TI - Learning together and alone: cooperative, competitive and individualistic learning SN - 0205155758 U1 - 371.102 PY - 1994/// CY - Boston, MA PB - Allyn And Bacon KW - Group work in education KW - Individualized instruction KW - Interaction analysis in education KW - Lesson planning ER -