whiteboard india. The open-ended teaching support system, which is composed of excellent national digital media materials, knowledge point materials and exemplary teaching cases, can be continuously expanded. The functions of the teaching resource library include resource collection, resource verification and warehousing, resource retrieval, resource browsing and downloading. The construction of the teaching resource library is to integrate the excellent teaching resources of the whole country, so as to realize the sharing of resources and achieve the purpose of improving the quality of 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.