Introduction to Augmentative and Alternative Communication (AAC)
- Amy Unruh
- Jul 21
- 3 min read
Augmentative and Alternative Communication (AAC) is simply another way to support communication. For some children, spoken words come easily. For others, speech develops slowly, inconsistently, or not yet at all. AAC gives children a reliable way to express themselves while spoken language continues to grow.
What AAC Actually Is
AAC tools give children access to real language — words they can use across routines, with anyone, at any time. These tools can take many forms:
Core word boards (12‑word, 20–30 word, portable mini)
Language‑based symbol sets (SymbolStix, PCS, Widgit, LAMP)These symbols represent words and ideas visually, helping children understand and express language.
Speech‑generating devices (iPad apps, dedicated SGDs, eye‑gaze, switch access)
Sign language (key word signs, ASL)
Gestures(pointing, reaching, nodding, waving)
Most children use a mix of AAC tools — gestures, signs, symbols, and devices — because communication is naturally multimodal.
AAC can be high‑tech, lite-tech, or no‑tech at all. What matters is that it helps a child share their ideas, needs, and personality.
Who AAC Is For
AAC is not only for children with complex needs. It’s for any child who benefits from extra support while speech develops. Many families are surprised to learn that AAC can help:
late talkers
autistic children
children with motor speech disorders
children with developmental delays
children with complex communication needs
toddlers who are still learning how to express themselves
If a child has something to say, AAC helps them say it.
AAC also supports autonomy by giving children the power to express their own ideas, not just respond to ours.
One of the most important evidence‑based messages for families:
Children often begin using more spoken words once they have a reliable way to communicate. AAC reduces pressure, builds vocabulary, and strengthens motor planning.
Why AAC Helps
What AAC Looks Like in Everyday Life
AAC is most powerful when woven into simple routines:
pointing to go during play
modelling help during snack time
using stop and more during bubbles
showing wait during transitions
offering done at the end of an activity
AAC is not a separate therapy. It’s part of daily connection.
Before we talk about how to access AAC, it’s important to clear up one of the biggest myths.
Do Children Need Prerequisite Skills?
No.
This is one of the most persistent myths in our field.
Children do not need to:
point
match pictures
imitate
follow directions
understand symbols first
AAC helps children develop these skills.
There are no readiness requirements. We begin with the belief that every child can learn and use language; AAC simply gives them the tools to express what’s already inside them.
How Families Can Start Today
You don’t need special training or fancy equipment to begin.
Model one word at a time on a core board
Respond to all communication attempts
Keep AAC available everywhere
Use AAC during fun activities
Celebrate communication, not speech
How and Where to Access an AAC system
Ontario families can generally access high-tech communication devices through:
Assistive Devices Program (ADP): ADP covers up to 75% of the cost of approved speech‑generating devices (SGDs) for OHIP‑eligible residents.
School Boards may provide an AAC device at no cost through the Specialized Equipment Allocation (SEA). This process may vary by school board and it is best to contact your school and/or school-board S-LP to discuss options. Some school boards may refer to the ADP authorized clinics.
Some charitable organizations such as Easter Seals Ontario may help cover the remaining 25% of ADP-funded devices.
Families may choose to work with a private S-LP and purchase their own speech generating/high-tech device. Many communication apps are shifting towards subscriptions, which can lower the initial cost.
Want Support Getting Started?
If you’d like gentle, practical support as you begin, you can receive my AAC Communication Partner Starter Guide by joining Mycommunication's newsletter. You’ll also receive an AAC Modelling Quick Start Guide, Core Word materials, and weekly AAC tips designed to make communication feel calm, doable, and connected.
Join at www.mycommunicationcompass.com
If you'd like to learn more about technology related supports for neurodivergent learners you can read more here.
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IMPORTANT: Information shared by WonderTree is not intended to replace or be constituted as clinical or medical care. It’s intended for educational purposes only. Each child is unique, and the information provided may not be applicable to your specific situation. If you need support, please establish care with a licensed provider so that they can provide tailored recommendations for you or your child. This blog is non-monetized.
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