What is Augmentative and Alternative Communication?
Augmentative and Alternative Communication (AAC) refers to any device, system or method that improves the ability of a student with communication impairment to communicate effectively. AAC may be used to describe communication devices such as communication boards, voice output devices, or communication systems such as sign language. AAC can also include the use of facial expressions, vocalizations, or gestures. AAC is considered when a student does not develop communication in a typical fashion or experiences a significant delay in language development. An AAC device is not merely a substitute for how the student is currently communicating. Ideally, an AAC system includes more than one mode of communication and it often includes the use of some natural speech.
