1. Introduction
Collaborative learning has gained an increasing role in educational
research and practices in recent years. Computer-supported
collaborative learning (CSCL) is a pedagogical
approach wherein learning takes place via social interaction
using a computer or through the Internet. Therefore, in the
field of computer-supported collaborative learning, the group
interactions are often mediated by various kinds of technolo
we identified issues from the dimensions of knowledge building,
interaction analysis methodology and assessment. Finally,
we proposed the three approaches to support easy, engaged
and effective collaborative learning.