The Impact Of Social Interaction Objects And Contents On Video Lectures Learning

With the rapid development of information technology,the online learning is rapidly emerging around the world.The video lecture is generated by digital technology and distributed by the network environment.It is the core curriculum resource in online courses.And interactive video can effectively improve learning efficiency,and many studies have shown that social interaction can promote learners'learning.Based on social constructivism theory and social comparative theory,we attempt to explore the impact of social interaction objects with different knowledge levels and interactive contents on learners' learning effectiveness,cognitive load and learning satisfaction in online video lectures.In the first study,we explore the impact of social interaction objects with different levels of knowledge(teachers,high-level students,the same level students,and low-level students)in online video lectures.And we analyze the barrage sent by the learner.The results show that in terms of knowledge retention and knowledge transfer,learners have the best scores when interacting with teachers,and have the worst scores when interacting with low-level students.There is no significant difference in learning satisfaction and cognitive load between interacting with objects of different knowledge levels.In the second study,we explore the impact of social interaction objects with different levels of knowledge and interaction contents in online video lectures.And we analyze the barrage sent by the learner.The results show that in terms of knowledge retention and knowledge transfer,learners have the best scores when interacting with teachers,and the barrage related to the learning can promote learning betrer.In terms of learning satisfaction and cognitive load,the main effect of the interactive content is significant.When watching the barrage related to the learning,the learner's psychological effort will increase and then the cognitive load will increase.And the learning satisfaction will be higher,too.Based on the above research,this paper confirms that interaction with teachers and sending interaction related to the learning is the best.And also enriches the application of social constructivism theory and social comparative theory in online video.And we look forward to providing a reference for the interactive functional design of online learning platforms.