In the context of PECS, what does "Physical Exchange" refer to?

In the context of the Picture Exchange Communication System (PECS), "Physical Exchange" specifically refers to the process by which an individual physically hands a picture to another person in order to request an item or action. This principle is foundational to the PECS approach, as it emphasizes the idea that the individual uses a tangible picture to communicate a desire, rather than relying on verbal or abstract forms of communication.

The focus is on facilitating communication through direct interaction with objects (in this case, pictures), making it a concrete and visual method for individuals who may have difficulties with traditional forms of communication. This physical act is crucial in helping users learn the connection between the picture and what it represents, fostering their ability to express needs and wants more effectively. The act of handing over the picture is a critical step in developing their communication skills, reinforcing the link between imagery and meaning.