Research On Online And Offline Mixed Teaching Mode And Its Application Based On HoloLens

The COVID-19 epidemic has become a touchstone for testing the achievements of educational informatization.The teaching model combining online and offline has become the normal state of education.There are the following problems in online teaching.First,there is a lack of learning scene and atmosphere in online teaching.Second,there is little interaction between teachers and students.Third,it is difficult for students to understand knowledge.Fourth,there are few high-quality teaching resources.There are also some problems in the traditional offline teaching,such as:teaching resources are relatively single;targeted teaching and guidance are difficult to implement in offline teaching.This article intends to create an experiential teaching platform using HoloLens to connect online resources for offline teaching.It constructs an online and offline mixed teaching model based on HoloLens,and carries out actual teaching practice to verify the teaching effect.The research of this paper mainly includes:(1)This paper analyzes the current situation of teaching under the epidemic situation of COVID-19.It summarizes the application of mixed reality technology in teaching at home and abroad,and analyzes the background and significance of constructing online and offline mixed teaching mode.(2)The online and offline mixed teaching mode is put forward.The online and offline mixed teaching process is defined from the aspects of environment,resources and interactive method.The mode based on HoloLens is analyzed from five aspects:theoretical basis,three-dimensional teaching objectives,online and offline teaching activities,realization conditions and teaching evaluation.(3)The experimental teaching platform based on HoloLens is constructed.The teaching scene of offline classroom environment and the mixed reality teaching resources including six scenes are designed and implemented.The functions such as classroom display,passing through "arbitrary door",scene display and conversion,gaze,gesture interaction,voice interaction are designed and implemented in detail.The test shows that the mixed reality information can be fully integrated into the real environment.(4)A typical experiment of geography teaching in senior high school was carried out.Combined with the relevant knowledge of "Earth in the Universe",empirical research was carried out through questionnaires and interviews to verify the effectiveness of the method.Through data processing analysis and interview results,it is found that this model improves students’learning effect and satisfaction to a certain extent.The main innovations of this research include:1.We put forward a kind of online and offline mixed teaching mode based on HoloLens,define the teaching process and interaction mode from three aspects of teaching environment,teaching resources and interaction mode.2.The typical teaching application of the mixed reality of online resources and offline environment is carried out to construct the real classroom environment and mixed reality teaching resources.This article analyzes the multimodal interaction between teachers and students,the interaction between students,and the interaction between human and teaching resources.Finally,through empirical research,good results have been achieved.