best digital whiteboard 2019. Group activity area: Group counseling activities, interactive games, psychological salons, psychological dramas, group competitions, art tutoring and other activities to help students release psychological stress.. 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.