Abstract: The research and structure of the traditional Mobile CSCL model are made from the technical point of view, while ignoring the social peer interaction between learners in the process of collaboration. This paper researchd the ex- tended Granott peer interaction mode based on classic Granott model, presented the mobile CSCI. model based on ex- tended Granott peer interaction mode, and then gave a formalization algorithm of the Granott logic object, which was validated and implemented in a prototype system. This model supports mobile learners to get the collaborative behavior with partner in the process of collaboration based on extended Granott peer interaction mode, thus efficiently help the learners to accomplish the mobile cooperating learn work.

Key words: Granott theory, Pccr interaction, Mobile CSCL, Mobile