large whiteboard. In short, the domestic research on the application of interactive whiteboard mainly uses experiments, case studies or action research, mainly related to the following aspects: research on the applicability and effectiveness of teaching for interactive whiteboards, interactive whiteboards for teachers and students during teaching Research on attitudes and teaching effects, integration of electronic whiteboards and teaching in various subjects, including innovative teaching models based on electronic whiteboards such as hybrid learning, collaborative learning, and inquiry learning. However, in general, the application of interactive whiteboard in Chinese primary and secondary school teaching is still in a small-scale experiment, preparation or initial stage. Most of the applications and research being carried out are in the stage of familiarization, training and experimentation with the interactive whiteboard system. The teaching role of the interactive whiteboard is still in the basic understanding stage, far from the stage of deep integration of the interactive whiteboard system and various disciplines. It will take time to promote the popularity.. 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.