| Online collaborative learning has now become a more common way of learning,its advantages are that it can completely break the time and space constraints,so that learners can achieve free learning anytime and anywhere,and with the characteristics of flexible learning process and diversified resources,it is widely used in practical teaching.However,in the real online collaborative learning,there are some problems such as "free riding" and "passive participation" Therefore,this paper uses the theory of group perception to build an online collaborative learning activity design model based on group perception to improve the participation of learners,to have a positive impact on the efficiency of collaboration.In the third chapter,the theory of group perception is discussed in detail,including the basic connotation,function and influencing factors of group perception.At the same time,based on the theory of group perception,the design of online collaborative learning activities should conform to the principles of visualization,dynamic,interactive and diversity.Then,the design model of online collaborative learning activities supported by group perception is constructed,which follows these principles.The model is divided into three parts: element analysis,implementation and activity evaluation.In the implementation of activities,this paper designs a specific process,which includes teacher activities,student activities and the specific implementation measures of the corresponding activity process.The fourth chapter carries out specific experiments.Based on the existing Sakai platform as the experimental environment,according to the proposed model and activity process,the subject of the course "design and production of micro course" is selected as the research subject,and the undergraduate students are selected as the research objects to carry out the activity model when the participants are engaged in online collaborative learning activities,compared with the students in the control class,the students in the experimental class are in the discussion area The number of personal posts and the cooperation efficiency of each group in the completion of the task have been improved to a certain extent,which proves that this activity model is reasonable and effective,and finally achieves the expected research results. |