4Barab, S.A. Cherkes-Julkowski, M., Swenson, R.,Garrett, S.,& Show, R. E., & Young, M. (1999).Principles of self - organization: Ecologizing the LearnerFacilitator System. The Journal of The Learning Science.8 (3-4), 349-390.
5Lemke, J. (1997). Cognition, Context, and Learning: A Social Semeotic Perspective. In D. K Kirschner & J. A.Whitson (Eds.), Situated Congnition: Social, Semiotic and Psychological Perspectives (pp. 37 - 56) . Mahwah, NJ:Lawrence Erlbaum Associates.
6Lave, J. (1988). Cognition in Practice. Cambridge,England: Cambridge University Press. pp81.
7Lave, J. (1991). Situated Learning in Communities of Practice. In L. B. Resnick, J. M. Levine, & S. D.Teasley (Eds), Perspectives on Socially Shared Cognition (pp. 63-82). Washington, DC: American Psychological Association.
8Greeno, J.G. (1998). The Situativity of Knowing, Learning,Learning, and Research. American Psychologist, 53 ( 1 ),5 -26.
9Resnick, L. B. (1987). Learning in School and Out. Education Researcher, 16, 13 -20.
10Lave, J. (1988). Cognition in Practice: Mind, Mathe Matics,and Culture in Everyday Life. Cambridge, England: Cambridge University Press. pp50.
