. Mic, Hal 373 Mic: its all u 374 Mic: See 375 Mic: i helped 376 Cosi: ok, so what's 11 ? just guess on 10 ?. 386 Mic: lets get back to 5

. Mic:-oh-wow, 402 Mic: i totally skipped the first sentencwe 403

E. Wenger, Communities of practice: Learning, meaning and identity, 1998.
DOI : 10.1017/CBO9780511803932

N. C. Burbules and B. C. Bruce, Theory and research on teaching as dialogue, Handbook of research on teaching, pp.1102-1121, 2001.

K. Egan, The Educated Mind, how cognitive tools shape our understanding, 1997.

T. Koschmann, Toward a dialogic theory of learning, Proceedings of the 1999 conference on Computer support for collaborative learning, CSCL '99, 1999.
DOI : 10.3115/1150240.1150278

R. Wegerif, A dialogic understanding of the relationship between CSCL and teaching thinking skills, International Journal of Computer-Supported Collaborative Learning, vol.40, issue.1, pp.143-157, 2006.
DOI : 10.1007/s11412-006-6840-8

M. M. Bakhtin, The dialogic imagination: Four essays, 1981.

M. M. Bakhtin, Speech genres and other late essays, 1986.

M. M. Bakhtin, Problems of Dostoevsky's poetics, 1993.

P. Linell, Rethinking language, mind, and world dialogically, 2009.

D. Hicks, Learning as a Prosaic Act, Mind, Culture, and Activity, vol.3, issue.2, pp.102-118, 1996.
DOI : 10.1207/s15327884mca0302_3

S. Trausan-matu and T. Rebedea, Polyphonic inter-animation of voices in VMT Studying virtual math teams, pp.451-473, 2009.

G. Stahl, Group cognition Computer support for building collaborative knowledge, 2006.

P. Lorino, Dise??ar la actividad colectiva conjunta??: la investigaci??n dial??gica. Estudio de un caso acerca de la seguridad en la industria de la construcci??n, Activites, vol.06, issue.1, pp.87-110, 2009.
DOI : 10.4000/activites.2154

A. Dong, The latent semantic approach to studying design team communication, Design Studies, vol.26, issue.5, pp.445-461, 2005.
DOI : 10.1016/j.destud.2004.10.003

J. Shotter, Conversational realities. Constructing life through language, SAGE, 1993.

C. B. Cazden, Vygotsky, Hymes, and Bakhtin: From word to utterance and voice Contexts for learning: Sociocultural dynamics in children's development, pp.197-212, 1993.

G. Leinhardt and J. G. Greeno, The cognitive skill of teaching., Journal of Educational Psychology, vol.78, issue.2, pp.75-95, 1986.
DOI : 10.1037/0022-0663.78.2.75

A. Weinberger, B. Ertl, F. Fischer, and H. Mandl, Epistemic and social scripts in computer?supported collaborative learning, Instructional Science, vol.18, issue.2, pp.1-30, 2005.
DOI : 10.1007/s11251-004-2322-4

URL : https://hal.archives-ouvertes.fr/hal-00703946

S. Trausan-matu, G. Stahl, and J. Sarmiento, Supporting Polyphonic Collaborative Learning, e-Service Journal, vol.6, issue.1, pp.58-74, 2007.
DOI : 10.2979/ESJ.2007.6.1.59

J. V. Wertsch, Voices of the mind: A sociocultural approach to mediated action, 1991.

O. Dysthe, The Multivoiced Classroom: Interactions of Writing and Classroom Discourse, Written Communication, vol.13, issue.3, pp.385-425, 1996.
DOI : 10.1177/0741088396013003004

S. Trausan-matu and T. Rebedea, A Polyphonic Model and System for Inter-animation Analysis in Chat Conversations with Multiple Participants, Computational Linguistics and Intelligent Text Processing, pp.354-363, 2010.
DOI : 10.1007/978-3-642-12116-6_29

E. Villiot-leclercq, S. Mandin, P. Dessus, and V. Zampa, Helping Students Understand Courses through Written Syntheses: An LSA-Based Online Advisor, 2010 10th IEEE International Conference on Advanced Learning Technologies, 2010.
DOI : 10.1109/ICALT.2010.96

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.170.4074