10-Minute Speech Practice That Doesn't Require Sitting Still

Last updated 2026-07-09

What is an AAC device, exactly?

AAC stands for Augmentative and Alternative Communication. "Augmentative" means it supplements existing speech. "Alternative" means it replaces speech when a person has none. An AAC device is any tool, from a laminated picture board to an $8,000 speech-generating device (SGD), that gives someone a way to communicate outside of talking ^[1].

The American Speech-Language-Hearing Association defines AAC as "all of the ways we share our ideas and feelings without using spoken words" and sorts it into unaided systems (sign language, gestures) and aided systems (anything external to the body) ^[1]. Devices are a subset of aided AAC.

For kids who are late talkers, minimally verbal, or nonspeaking because of autism, apraxia of speech, or other conditions, an AAC device is less of a workaround and more of a first language. The device does not replace the goal of developing speech. It gives the child something to say right now, which is exactly what early language development needs.

How does the communication actually happen inside an AAC device?

The basic chain is short. The user selects a symbol or letter, the device reads that selection, and it produces an output, usually synthesized or recorded speech. Each step has design choices that change daily life.

Selection method. Most kids tap a touchscreen directly. A child with limited motor control might use a switch (a button pressed with any reliable body movement) to scan through options one by one until the device highlights what they want, then activates it. Eye-gaze systems track the pupil and let a child select by looking at a target for a fraction of a second ^[2]. The right selection method matters enormously. Get it wrong and the child works much harder than they need to.

Symbol sets and vocabulary organization. High-tech devices typically run one of several major symbol-based software systems. Core vocabulary words ("more", "stop", "want", "go", "that") sit on the main page because they account for roughly 80 percent of what we actually say in daily life ^[3]. Fringe vocabulary ("pizza", "swim class", "grandma") lives in category folders. Good AAC software is built so a motivated child can reach any word in three to four taps or fewer.

Speech output. The device speaks the word or phrase aloud through a speaker. Text-to-speech engines now sound far more natural than the flat voices people remember from early devices. Many families also record a human voice for frequently used words, which some children respond to more easily.

Dynamic vs. static displays. A static display shows the same set of symbols every time, like a fixed laminated board. A dynamic display changes: tap "food" and the page automatically switches to a grid of food options. High-tech SGDs almost always use dynamic displays because they can hold thousands of words while keeping each page manageable.

What are the main types of AAC devices?

Think in tiers, not one undifferentiated category.

No-tech and low-tech systems are genuinely powerful. Many speech-language pathologists (SLPs) start children on paper-based systems on purpose: no charging, no cracked screen, and the child can carry it everywhere without worry. The Picture Exchange Communication System (PECS) has a strong evidence base for children with autism. A 2010 meta-analysis in the American Journal of Speech-Language Pathology found that PECS improved functional communication in most participants ^[4].

High-tech dedicated SGDs are the systems insurance companies fund. They look more like a ruggedized tablet than a consumer device, and they run specialized AAC software built for durability and access. A 2022 review in the American Journal of Speech-Language Pathology found that high-tech AAC interventions produced gains in communication rate and vocabulary across participants with a range of diagnoses ^[5].

A child might use a low-tech board at home, an iPad app at school, and a dedicated SGD for formal evaluations. That is completely normal. The goal is communication in every environment, not uniformity.

Does using an AAC device stop a child from learning to talk?

No. This is the most persistent myth in the field, and the evidence against it is consistent enough that ASHA states directly: "Research has shown that AAC does not interfere with speech development. In fact, it may support it" ^[1].

The reasoning makes sense once you think about how language works. A child who has a reliable way to communicate gets more communicative turns, more social interaction, and more feedback from adults. All of that builds the neural pathways behind speech. A child who is frustrated, misunderstood, and behaviorally shut down because they can't get a single reliable message across gets none of it.

Several longitudinal studies find that children introduced to AAC early show improvements in natural speech over time, not declines. A frequently cited 2006 review by Millar, Light, and Schlosser in the American Journal of Speech-Language Pathology looked at 23 studies and concluded that AAC "did not impede natural speech production and in fact appeared to facilitate it in many cases" ^[6].

That said, AAC is not a magic accelerator either. Speech development depends on the child's neurological profile, hearing, motor planning, and the quality of intervention. If you're seeing very little progress, the issue is almost never the device. It's more likely the vocabulary selection, the modeling quality, or an underlying condition like childhood apraxia of speech that needs its own targeted treatment.

Who qualifies for an AAC device and how does the evaluation work?

Any child whose speech is not meeting their communication needs is worth evaluating. There is no minimum cognitive level, no minimum number of words, and no age floor. The old "prerequisite skills" model, which held that children needed to show certain symbolic understanding before getting AAC, has been largely abandoned in the research literature ^[2].

A formal AAC evaluation is done by a speech-language pathologist, ideally one with specific AAC training. Some evaluations use a team that may include an occupational therapist (to assess motor access), an assistive technology specialist, and sometimes a vision specialist if eye-gaze is on the table.

The evaluation typically covers:

• The child's current communication functions (what they can already express and how)
• Motor abilities (hand control, head control, pointing accuracy, switch access potential)
• Visual and cognitive processing
• The child's daily environments, communication partners, and routines
• Vocabulary needs specific to that child's life

After the evaluation, the SLP writes a report recommending a specific system. If insurance funding is sought, this report becomes the backbone of the funding request. Most states also have early intervention programs that can fund AAC evaluations and therapy for children under three ^[7].

If your child is school-age, the school district is required under the Individuals with Disabilities Education Act (IDEA) to provide assistive technology, including AAC, when the child's IEP team decides it is necessary for a free appropriate public education ^[8]. The device funded through school usually stays at school, which is one reason many families pursue a separate device at home.

How does insurance or Medicaid pay for an AAC device?

Dedicated speech-generating devices are typically covered as durable medical equipment (DME) under Medicare and Medicaid, and most private insurance plans follow similar rules. The Centers for Medicare and Medicaid Services (CMS) classifies SGDs under Healthcare Common Procedure Coding System (HCPCS) codes E2500 through E2599, and its guidance specifies that the device must be medically necessary and used primarily for communication ^[9].

In practice, getting insurance approval usually means: 1. A physician's prescription or letter of medical necessity 2. An AAC evaluation report from a qualified SLP 3. Documentation of a trial period with the recommended device 4. Prior authorization from the insurer

This process takes weeks to months. It is not unusual for families to wait three to six months from evaluation to device delivery. During that wait, most SLPs recommend a low-tech or app-based system so communication doesn't stall.

For families who lack coverage or whose claims are denied, manufacturers like Tobii Dynavox and PRC-Saltillo run device lending programs and loaner equipment through regional centers and AAC lending libraries. Some states also have assistive technology loan programs ^[10].

App-based AAC on a consumer iPad is dramatically cheaper. Proloquo2Go costs around $250 to $300 (prices vary), and TouchChat HD lands in a similar range. These apps are not typically covered by insurance, but they're accessible enough that many families start there while pursuing a dedicated device.

What does learning to use an AAC device actually look like day to day?

The biggest misconception is that you hand a child a device and they start using it to make requests. Real AAC learning is slow, nonlinear, and built on a lot of consistent adult modeling.

The most widely used teaching approach is called Aided Language Stimulation (or modeling). The communication partner, whether parent, teacher, or therapist, points to or activates symbols on the device during natural conversation, without requiring the child to imitate. It mirrors how children learn spoken language: they hear words used in context hundreds of times before they produce them. AAC modeling gives them the visual-motor version of that immersion ^[3].

Research on how long this takes is honest: there's no reliable average. Some children begin intentional communication within weeks of AAC introduction. Others take six months to a year before showing clear symbolic use. A 2016 review in Augmentative and Alternative Communication found that the frequency and quality of adult modeling was among the strongest predictors of child AAC outcomes ^[11].

Parents are not expected to become SLPs. But they are the most important people in this process. A device that only comes out during therapy sessions will not teach a child to communicate. The research is consistent: children need to see AAC used at home, during meals, during play, and at bedtime, far more than during formal sessions.

If you're doing speech therapy and your therapist hasn't shown you how to model on the device, ask them directly. That's one of the most useful conversations you can have.

What vocabulary should be on a child's AAC device first?

Start with core vocabulary, not nouns.

This surprises a lot of parents because the instinct is to load the device with the names of things the child loves: "train", "cookie", "Bluey". Those words matter, but they're fringe vocabulary. A child who can only request objects is stuck with one communicative function. Core vocabulary words like "more", "stop", "go", "want", "no", "help", "I", "you", and "like" work across every activity, every context, and every conversation partner.

Research from Gail Van Tatenhove and others documents that just 50 core words account for roughly 40 to 80 percent of what people actually say in everyday communication ^[3]. Those 50 words should be easy to find and hard to accidentally hide in sub-folders.

Fringe vocabulary, meaning the names of people, specific toys, foods, and places, expands over time as the child's world grows. A good SLP will help you map vocabulary to the child's daily routines rather than only to the child's interests.

For children who also show echolalia, where they repeat phrases from TV or earlier conversations, AAC vocabulary planning may need to account for that pattern. Some children use echoed scripts to communicate meaningfully, and understanding what echolalia means for your child will shape what goes on the device.

Can AAC devices work for children with autism?

Yes, and AAC is among the most studied interventions in autism communication research. Somewhere between 25 and 35 percent of autistic individuals are minimally verbal or nonspeaking, according to estimates cited by the Autism Science Foundation, though exact numbers vary by study and definition ^[12].

The evidence for AAC in autism is strong. A 2014 systematic review in the Journal of Developmental and Physical Disabilities found positive communication outcomes for AAC across multiple study designs and multiple systems for autistic participants. PECS, SGDs, and app-based AAC all showed efficacy.

For autistic children who also have co-occurring motor planning differences, the selection method matters enormously. Some autistic children have characteristics consistent with apraxia of speech, which makes it hard to reliably produce motor plans for both speech and fine motor touch. An AAC evaluation that looks carefully at motor access, not only vocabulary, catches this.

For families also working through autism spectrum speech therapy more broadly, AAC is usually one part of a larger communication plan, alongside spoken language goals, play-based interaction, and sometimes online speech therapy services that add practice hours each week.

One area where the data is genuinely thin: predicting which individual child will do best with which AAC system. Nobody has cracked that. The closest we have is a thorough evaluation, trial periods with actual devices, and an SLP who knows the child well.

What are the most common mistakes families make with AAC devices?

Putting the device away when it's not "AAC time." Communication doesn't have scheduled hours. A child who only sees the device during speech therapy will treat it like a therapy tool, not a voice.

Not modeling enough. Parents often wait for the child to use the device and then prompt them. Modeling flips that. You use the device constantly, narrating what you're doing, what the child seems to want, what's happening, with no pressure for the child to respond. It's tedious and it works.

Loading too many words too fast. A 9x9 grid of 81 symbols on page one overwhelms a new AAC learner. Starting with a smaller core page (maybe 12 to 20 symbols) and expanding as the child gains competence is a much more common path to success.

Giving up too early. Many families abandon AAC after a few months of little visible response. The period before a child begins spontaneous use can be long, sometimes very long, and consistent modeling during that stretch is what eventually produces results. Six months of consistent, whole-day modeling is a reasonable minimum before reassessing the system.

Ignoring the device at school. If the school team doesn't know the device, doesn't use it, and doesn't have the vocabulary the child's SLP programmed at home, the two environments fight each other. A shared communication book and regular team meetings help a lot.

If you're just starting out and want structured support to figure out whether an app-based system might work as a first step, Little Words has a short quiz at littlewords.ai/start that helps parents identify where their child is and what kind of support makes sense to try first.

How do you know if an AAC device is working?

Progress in AAC looks different from progress in traditional speech therapy, and misreading it causes a lot of unnecessary worry.

Early signs that AAC is taking hold: the child reaches toward the device or touches it on their own, the child protests when it's taken away (which shows they connect it with communication), and communication partners start noticing more initiations, even if the selections aren't always accurate.

Formal progress measures SLPs use include mean length of utterance (MLU) on AAC, the number of different words used in a session, the rate of communication acts per minute, and the range of communicative functions (requesting, commenting, protesting, asking questions). Commenting is often the last function to emerge, because requesting is usually taught first. A child who can only request has limited AAC, even if they do it well.

Goals should be written into the child's IEP or therapy plan so there's an actual benchmark to measure against. If goals are vague ("will use AAC to communicate"), push the SLP for specifics: how many different words, which functions, in which environments, with which partners.

Progress sometimes shows up in spoken language first, which can feel backwards. Some children begin producing more spoken approximations as their AAC vocabulary grows, because the device gives their brain a motor and symbolic map to work from. If that happens, it's a reason to keep going, not to take the device away.

How is Little Words different from a traditional AAC device?

Little Words is an AI-based speech companion app for neurodivergent kids. It is not a replacement for an AAC device or for speech therapy, and that distinction matters.

Traditional high-tech AAC devices are clinical tools evaluated and programmed by SLPs, often funded through insurance as durable medical equipment, and designed to be a person's primary communication system. They carry regulatory considerations and get prescribed based on an evaluation.

Little Words, available at littlewords.ai/start, is aimed at families who want structured, daily language support between therapy sessions, or who are waiting for a formal evaluation and want to start building communication habits now. It works best alongside a therapist's plan, not instead of it.

If your child needs a funded, dedicated device, pursue that path through an SLP and your insurance. If you want something you can start this week, an app is a reasonable on-ramp.

Frequently asked questions

At what age can a child start using an AAC device?

There is no minimum age. Research supports introducing AAC as soon as a communication need shows up, even in infants with known motor or developmental conditions. For toddlers under three, contact your state's early intervention program, which is federally required to provide evaluations at no cost. Earlier access consistently leads to better long-term communication outcomes.

Will my child become dependent on the AAC device and never try to talk?

No. Research reviewed by the American Speech-Language-Hearing Association shows AAC does not inhibit speech development and often supports it. Children who have a reliable way to communicate get more interaction and more language input, both of which build spoken language. The goal of AAC is always total communication, meaning every mode the child can use, speech included.

How much does a speech-generating device cost without insurance?

Dedicated SGDs from manufacturers like Tobii Dynavox or PRC-Saltillo typically cost between $3,000 and $10,000 or more depending on features and access method. App-based AAC on a consumer iPad, such as Proloquo2Go or TouchChat, runs roughly $250 to $300 for the app plus the cost of the device. Low-tech paper systems can be made for almost nothing.

Does my child's school have to provide an AAC device?

Under IDEA, school districts must provide assistive technology, including AAC devices, when the IEP team decides it is necessary for a free appropriate public education. The device funded by the school usually stays at school. Many families pursue a separate device for home, either through private insurance or Medicaid.

What is the difference between Proloquo2Go and a dedicated SGD?

Proloquo2Go is AAC software that runs on a consumer iPad. A dedicated SGD is a purpose-built device with ruggedized hardware, longer battery life, louder speakers, and often more advanced access options like eye gaze or switch scanning. Insurance typically funds dedicated SGDs but not apps. For many families, an app is a practical starting point while pursuing a dedicated device.

How long does it take for a child to learn to use AAC?

There is no reliable average. Some children begin intentional use within weeks; others take six months to a year or longer. The single biggest predictor of progress is how consistently communication partners model the device throughout the day, far more than during therapy. Consistent whole-day modeling for at least six months before reassessing the system is a reasonable benchmark.

Can a nonspeaking autistic child use an eye-gaze AAC device?

Yes, if they have enough consistent eye control and visual attention. Eye-gaze systems track pupil movement and let a user select symbols by looking at them. A formal AAC evaluation will include a motor access assessment to determine whether eye gaze fits. Some autistic children who have limited hand control do very well with this method.

What is core vocabulary and why does it matter for AAC?

Core vocabulary is a small set of high-frequency words, including "more", "stop", "want", "go", "help", and "no", that account for a large share of everyday communication. Research suggests roughly 50 core words cover 40 to 80 percent of what people actually say. Loading core vocabulary first gives a child the most communicative power for the fewest symbols to learn.

How do I get an AAC evaluation for my child?

Ask your pediatrician for a referral to a speech-language pathologist with AAC experience, or contact your school district's special education office if your child is school-age. For children under three, your state's early intervention program provides free developmental evaluations. University hospital systems and children's hospitals often have dedicated AAC clinics with shorter wait times than private practices.

Is PECS the same as a high-tech AAC device?

No. The Picture Exchange Communication System (PECS) is a structured low-tech AAC program where the child physically hands a picture card to a communication partner to make requests. It has a strong evidence base, particularly for autism, and is often used as an early step before moving to a high-tech device. Many children move from PECS to app-based or dedicated SGD systems over time.

Can a child use AAC alongside regular speech therapy?

Yes, and this is the standard recommendation. AAC is not a replacement for speech therapy. A speech-language pathologist uses AAC as a tool within therapy while also working on speech production, language comprehension, and communication functions. The two approaches support each other, and most SLPs who work with minimally verbal or nonspeaking children are trained in both.

What happens if my child's AAC device breaks or gets lost?

For dedicated SGDs funded through insurance, manufacturers typically offer warranty coverage and repair programs. Most families are advised to keep a low-tech backup system, such as a printed core board, so communication doesn't stop during device repairs. School districts with device ownership policies should also have a backup plan written into the child's IEP. Consumer iPads can be replaced relatively quickly compared to dedicated devices.

Do bilingual or multilingual families need a special AAC setup?

Many AAC software systems support multiple languages or can be programmed with vocabulary in any language. If your family speaks a language other than English at home, an SLP familiar with bilingual AAC should be involved in the evaluation. Research does not support limiting a child to one language for AAC purposes. Bilingual AAC is both possible and recommended when it reflects the child's actual communication environment.

Sources

1. American Speech-Language-Hearing Association (ASHA), AAC topic page: ASHA defines AAC as all the ways people share ideas and feelings without spoken words, and states that research shows AAC does not interfere with speech development and may support it.
2. Beukelman DR, Mirenda P. Augmentative and Alternative Communication (4th ed), Brookes Publishing, 2013: Eye-gaze and switch-scanning access methods allow individuals with motor limitations to select AAC symbols; the prerequisite skills model for AAC has been largely abandoned.
3. Van Tatenhove G, AAC Institute, Core Vocabulary overview: Approximately 50 core words account for 40 to 80 percent of what people say in everyday communication; Aided Language Stimulation is a key modeling approach for AAC learning.
4. Flippin M, Reszka S, Watson LR. Effectiveness of the Picture Exchange Communication System (PECS) on Communication and Speech for Children with Autism Spectrum Disorders. American Journal of Speech-Language Pathology, 2010.: A 2010 meta-analysis found PECS improved functional communication in most participants with autism spectrum disorders.
5. Review of high-tech AAC interventions for individuals with autism spectrum disorder. American Journal of Speech-Language Pathology, 2022.: A 2022 review found high-tech AAC interventions produced gains in communication rate and vocabulary across participants with various diagnoses.
6. Millar DC, Light JC, Schlosser RW. The impact of augmentative and alternative communication intervention on the speech production of individuals with developmental disabilities. American Journal of Speech-Language Pathology, 2006.: A review of 23 studies concluded that AAC did not impede natural speech production and appeared to facilitate it in many cases.
7. U.S. Department of Health and Human Services, Administration for Children and Families, Early Childhood Development (IDEA Part C early intervention): States are required under IDEA Part C to provide free developmental evaluations and early intervention services, including AAC, for children under age three.
8. U.S. Department of Education, Individuals with Disabilities Education Act (IDEA), assistive technology provisions: IDEA requires school districts to provide assistive technology, including AAC devices, when the IEP team determines it is necessary for a free appropriate public education.
9. Centers for Medicare and Medicaid Services (CMS), Medicare Coverage Database, Speech Generating Devices coverage: CMS classifies speech-generating devices under HCPCS codes E2500 through E2599 as durable medical equipment covered when medically necessary and used primarily for communication.
10. Assistive Technology Industry Association (ATIA), AT lending library resources: Regional AT lending libraries and manufacturer loaner programs provide trial access to AAC devices for families without immediate funding.
11. Sennott SC, Light JC, McNaughton D. AAC modeling intervention research review. Augmentative and Alternative Communication, 2016.: Frequency and quality of adult modeling is among the strongest predictors of child AAC use outcomes, based on intervention research review.
12. Autism Science Foundation, minimally verbal autism overview: Estimates suggest 25 to 35 percent of autistic individuals are minimally verbal or nonspeaking, though exact figures vary by study and definition.