interactive whiteboards in the classroom video. Cloud network teaching has made up for the many shortcomings of traditional education, and changed the traditional way of storing, disseminating and extracting knowledge, which has caused new changes in education. Digital, intelligent, networked and multimedia information technology for modern teaching. The IQAio GR519 is an upgraded lightweight version based on the original IQAio GR511. The original dual-cavity structure was changed to a bottom-edge structure, so that the minimalist design accommodates modern classrooms and conference rooms. With one IQProjector V2 and one IQView E3821, you can achieve flexible and intelligent classroom.