Research On Online Interactive Behavior Of Knowledge Building Community

With the development of information technology and education informatization,collaborative learning and knowledge construction through network are widely used.Compared with the traditional face-to-face teaching,learners in the process of online learning,through online discussion and exchange,express creative ideas,strive for the same goal,cooperate to complete learning tasks,form a knowledge construction community,and ultimately achieve the growth of new knowledge.In the process of interaction,not only learners deepen their understanding and construction of knowledge,but also the knowledge construction community formed in the process of learning can realize the construction of collective knowledge,enhance learners' innovative consciousness and improve learners' cooperative learning ability.From this point of view,collaborative learning in the network environment places more emphasis on the role of interaction,and learners' interaction behavior in the process of interaction has also attracted much attention.More and more domestic and foreign scholars began to conduct specific research on interaction behavior.At present,the research on knowledge-building community at home and abroad pays more attention to the growth of knowledge,but seldom to the interaction level.The research on online interaction behavior is mostly limited to the analysis of learners' individual interaction behavior,and seldom pays attention to the perspective of knowledge-building community.Based on this,this study takes Edmodo platform as the supporting environment of interactive learning,and uses social network analysis,content analysis and statistical analysis to analyze the interactive behavior characteristics of the two knowledge-building communities formed in online learning from the aspects of interactive network and interactive content,and the correlationbetween the two knowledge-building communities and their achievements.Therefore,some suggestions are put forward to improve the interaction quality and learning effect of knowledge construction community.Firstly,this study combines the characteristics of students' and knowledge-based learning,takes the real problems that learners are interested in as the starting point,determines the learning theme as "network security",and takes Edmodo as the environment of knowledge-based community interactive learning,designs interactive learning activities and processes,and forms two knowledge-based communities: class and group.After learning,data collection,processing and analysis are carried out.On the one hand,social network analysis is used to analyze the characteristics of community interaction network through the attributes of class community and group community,such as community map,network density,distance,centrality and learner network location.On the other hand,according to content coding system,content analysis is used to analyze the interaction content characteristics of the two communities.The level of knowledge construction is taken into account,and the interactive behavior transformation model among class individuals is summarized through the sequence of behavior.Then,through correlation analysis,this paper explores the correlation between the indicators of interaction behavior and performance of the two communities,and analyses the difference of performance between core learners and marginal learners.Finally,based on the analysis of many aspects,some suggestions are put forward to promote the interaction and learning effect of knowledge construction community.The study found that the interaction network structure of the class community is sparse and cohesive,but there is a core-edge structure,and the core participants play the role of "bridge" the most times.In addition,the overall level of knowledge construction is low,only a few learners reach a higher level,the interaction mode of the class is imperfect,and the interaction depth needs to be strengthened.The network structure of the group community is different.The core participants of each groupplay an important role in the group.The percentages of cognitive interaction are the largest in each group's posts,but the level of knowledge construction of each group is at the middle and low levels.From the relationship between interaction behavior and learning performance,there is a significant positive correlation between individual performance and centrality,the number of times of playing advisory roles and posting times in the class.There is a significant difference between member position and learning achievement.The learners who are in the core position have higher achievement.In the process of group interaction,network centrality has a significant correlation with group performance.Generally speaking,the group with higher cohesion has higher group performance.