how interactive whiteboards enhance learning. Most of the classrooms could fit interactive touch panels from sizes 55 to 98, but the most popular ones are those sizes ranging from 65 to 84. Normally the size of the classroom determines it shall be equipped with which size of the panel. After all, you dont want students sit at the back of the class struggle to read a 20pt font everyday. However, do bear in mind that larger size comes with heavier weight, and inevitably it leads to more trouble for logistics and installation, the safety of wall-mount positions and possible movement of future maintenance.. 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.