electronic whiteboard for kids. Emphasize the cultivation of the ability to "listen and speak." Primary level should not be raised, "listening, speaking, reading and writing," the parallel requirements , "read, write" capability due mainly by a learned , largely unaffected language critical period of growth and development of sleep restriction , so deferred to high school. 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.