Learning as a practical achievement: an interactional perspective.

Alan Zemel Murat Perit Çakir Nan Zhou Gerry Stahl Learning as a practical achievement: an interactional perspective. 118-122 2009 CSCL (1) http://dl.acm.org/citation.cfm?id=1600071 conf/cscl/2009-1 db/conf/cscl/cscl2009-1.html#ZemelCZS09