7Verdon, K. OFSTED Finds No Clear Link Between Class Size and Lesson Quality[Z]. Office for Standards in Education( OFSTED). Hampshire County Council, 1995. http ://www. coi. gov. uk: 80/coi/depts./GOS/coi2431.
8Johnson D. W. , Johnson, R. T. , Holubec, E. J. Circles of Learning : cooperation in the classroom [M].Alexandria, VA : Association for Supervision and Curriculum Development, 1984.
9Slavin, Robert. Cooperative Learning [ J ]. Review of Educational Research Summer, 1980,50:315 - 342.
10Aronson, Elliot; Bridgeman, Diane. Jigsaw Groups and the Desegregated Classroom : In Pursuit of Common Goals [ J J. Personality and Social Psychology Bulletin, 1979,5 (4) :438 -446.