AAC (augmentative and alternative communication)
Last updated
AAC is any way of communicating that supplements or replaces speech, such as signs, picture boards or speech-generating devices.
Topic: Assistive technology and AAC
In plain terms
Unaided AAC uses only the body, like signs and gestures. Aided AAC uses a tool, from paper boards to tablets with communication apps. AAC does not stop speech from developing; research suggests it often supports it. Good practice is to presume competence, give access to a full vocabulary, and model AAC throughout the day.
How it shows up in an IEP
AAC is listed as assistive technology, and goals measure communication using it: making requests, commenting, asking questions, or joining conversations. Goals should target communication functions, not just pressing buttons on cue.
Example
A nonspeaking first grader uses a tablet communication app. A goal targets combining two symbols, such as "want more" or "go outside," across 3 activities a day.
Related terms
- Speech-generating deviceA speech-generating device is an aided AAC tool that produces spoken output when the user selects symbols, words or letters.
- Core vocabularyCore vocabulary is the small set of words people use most often across situations, such as want, go, stop, more, help and not.
- Aided language modelingAided language modeling is when communication partners use the student's AAC system themselves while they talk, showing how to use it in real situations.
- AAC communicative competenceAAC communicative competence is the ability to communicate effectively with AAC, built from linguistic, operational, social and strategic skills.
- Functional communication trainingFunctional communication training teaches a student a simple, effective way to communicate a need that is currently met through problem behavior.
On IEP Atlas
This page describes special education terms and federal rules in general terms and is not legal advice. Our editorial policy explains how IEP Atlas writes and reviews content. Browse all 244 terms.