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Sharan, S. & Shachar, H. (1988) Language and learning in the cooperative classroom. New York: Springer Verlag.

Sharan, S. , Shachar, H. & Levine, T. (1999) The innovative school: Organization and instruction. Westport, CT: Bergin and Garvey (Greenwood).

Sharan, S. & Shaulov, A. (1990) Cooperative learning, motivation to learn, and academic achievement. In S. Sharan (Ed.) Cooperative learning: Theory and research. Westport, CT: Praeger (Greenwood), 173-202.

Sharan, Y. & Sharan, S. (1992) Expanding cooperative learning through Group Investigation. New York: Teachers College Press.

Stevens, R. & Slavin, R. (1995a) Effects of a cooperative learning approach in reading and writing on academically handicapped and non-handicapped students. Elementary School Journal, 95, 241-262.

Stevens, R. & Slavin, R. (1995b) The cooperative elementary school: Effects on students' achievement, attitudes and social relations. American Educational Research Journal, 32, 321-351.

Tateyama-Sniezek, K. (1990) Cooperative learning: Does it improve the academic achievement of students with handicaps? Exceptional Children, 56, 426-437.

Webb, N. (1982) Peer interaction and learning in cooperative small groups. Journal of Educational Psychology, 74, 642-655. Webb, N. (1992) Testing a theoretical model of student interaction and learning in small groups. In R. Hertz-Lazarowitz & N. Miller (Eds.), Interactions in cooperative groups.New York: Cambridge University Press, 102-119.

Webb, N. & Farivar, S. (1994) Promoting helping behavior in cooperative small groups in middle school mathematics. American Educational Research Journal,31, 369-395.

Webb, N., Troper, J. & Fall, J. (1995) Constructive activity and learning in small groups.Journal of Educational Psychology, 87, 406-423.

Shlomo Sharan, Ph.D., Professor of Psychology at Tel Aviv University, Tel Aviv, Isreal, is a cofounder of IASCE. He has authored and co-authored numerous studies and books on cooperative learning. He sreved as Secretary and President of the IASCE. sharan1@netvision.net.il