An infrared interactive whiteboard is a large interactive display that connects to a computer and projector. The white board is typically mounted to a wall or floor stand.Movement of the user's finger, pen, or other pointer over the image projected on the white board is captured by its interference with infrared light at the surface of the white board. When the whiteboard surface is pressed,software triangulates the location of the marker or stylus. Infrared IWBs may be made of any material, no dry - erase markers are involved, and may be found in many settings, including various levels of classroom education.