An emerging trend in education worldwide is a movement of the focus from individual learning to cooperative learning . the study of computer supported collaborative learning ( abbr . cscl ) becomes very active 在教育领域,人们将目光也由个别化学习转向群体合作学习,因此,计算机支持的协同学习( computersupportedcollaborativelearning ,简称cscl )的研究变得非常活跃。