Diary Of An SLP: What is AAC?
As a Speech-Language Pathologist, I use AAC everyday with a wide variety of students.
I use it with with minimally-speaking and non-speaking students (I hesitate to use the word non-verbal, as many of my students do in fact verbalize even if they don’t say a lot of intelligible words). I use it with Autistic students. I use it with Gestalt Language Processors. I use it with children with Selective Mutism (children who find it hard to talk at school due to anxiety/shyness). I use it with children with genetic syndromes and disabilities that affect their motor ability for speaking.
But what is AAC?
AAC stands for Augmentative And Alternative Communication. It refers to alternative modes of communication that come in all shapes and sizes. AAC could refer to:
a speech generating device (a device specifically designed for alternative communication from companies such as PRC-Saltillo or Tobii Dynavox)
picture, symbol, text based communication applications that be configured on a tablet/iPad (e.g. Proloquo2Go, TouchChat, GoTalk Now, Coughdrop, etc.)
sign language
picture cards
switch (a button that can be programmed to play audio/music upon selection) e.g. BIGMack
and there are many more!
AAC is important because it gives people access to communication when they may not be able to communicate effectively or consistently otherwise.
SLPs often emphasize the need for robust communication systems. A robust system provides access to a wide range of vocabulary and grammar, empowering AAC users to express themselves fully and in ways that matter most to them.
In a school setting, a speech therapist may have access to an iPad with a communication app downloaded onto it. The SLP will use this in speech therapy sessions with students who are in need of alternate communication.
Example of a core word page on the GoTalk AAC app
In my experience, sometimes families get frustrated and overwhelmed when they hear that a speech therapist wants to use AAC with their child. They say they want their child to learn how to talk verbally and worry that AAC is going to hinder that. And they worry that the screen is a distraction for their child. The truth is, AAC does not take away from any progress your child is making with verbal speech.
A good candidate for AAC is a child who:
isn’t currently using verbal words reliably or effectively to communicate (speech/language delay, autism, etc.)
has a disability that affects the motor processes necessary for speech production (cerebral palsy, genetic disorders, autism, etc.)
Most AAC communication apps that speech therapists use are designed in a similar way. They typically feature a grid of symbols or pictures on the screen. When a picture is tapped, the app speaks the word or phrase aloud, giving both visual and verbal feedback. This setup helps children make the connection between symbols and language while giving them a reliable way to communicate. It’s especially helpful for children with speech and language delays, as the combination of visual and auditory feedback supports memory, processing, and overall understanding.
Example of a page on the Proloquo2Go AAC app with phrases for playing with toys
AAC is also powerful because it gives children a way to initiate communication on their own. They don’t have to wait for someone to guess what they want or need—they can go to their AAC device and directly express themselves. This independence not only supports their communication skills but also encourages confidence and self-advocacy.
Example of using vocabulary on the Proloquo2go AAC app.
Another great thing about these AAC apps is that they are totally customizable. They often come preloaded with language and vocabulary grouped into themes. And as your child learns and grows with his AAC, buttons can be added or removed and more buttons can be made available.
If you think your child is a good candidate for AAC, reach out to a Speech-Language Pathologist who specializes in AAC. An SLP can help you choose the right system, and show you how to use it with your child in a way that works best for them.
My name is Kayla Birch and I am a Speech-Language Pathologist. If you have any questions regarding AAC, don’t hesitate to reach out to me! I would love to answer any questions you have!
