Research on CSCL Interaction Intensity Measurement Model Based on E-portfolio

In CSCL, the interaction extent between members is an important factor to the group learning effect. A reasonable measurement of interaction intensity can provide a basis for the managers when guiding the groups with weak interaction and also for learnerspsila self reflection. Aiming at the shortcoming of the present model, in the paper we analyzed the factors that affect interaction intensity, put forward a measurable intensity measurement model, by using the vector with three dimensions--the interaction initiator, the interaction feedback and the interaction actor, can measure the interaction intensity at a given time, then it can effectively aide managers of the CSCL interaction to manage and induct the learners.