Compared to a whiteboard, a projection board also offers the possibility of projecting onto it. This is due to the fact that hotspot formation is avoided, which is not the case with a whiteboard.
The projection board can also usually be written on and wiped off with a marker provided for this purpose. In addition, the projection board can also be used with magnets to attach notes to it.
Format: The projected image is output in a format (aspect ratio) specified by the projector. The format is also determined by the resolution of the projector (see also the entry "Resolution"). The screen format is usually selected on the basis of the format of the beamer image. The most common formats are 4:3, 16:9 and 16:10.
