How to get a child to actually use their AAC device

Last updated 2026-07-11

"We got the device. We were so hopeful. Now it sits on the shelf." That's the most common thing parents say to speech therapists about AAC, and if it sounds like your house, you're not alone and it isn't your fault.

The problem usually isn't the child, it's the setup. AAC adoption research keeps finding that devices don't become real communication tools when modeling is rare, when kids feel they have to perform on cue, or when the device only comes out during "practice time" instead of living in everyday life. A 2019 survey of families using AAC found that less than half reported their child using the device to communicate across multiple settings ^[1].

There's also a quieter issue underneath all this: caregiver grief and ambivalence. Getting an AAC device is a big moment, sometimes a hard one, and if part of you avoids the device because using it feels like giving up on speech, that reaction makes sense. But the evidence doesn't support that fear. The American Speech-Language-Hearing Association states that "AAC supports communication development and does not hinder speech" ^[2]. Using the device and working toward spoken words aren't competing goals; they run together.

Modeling: the one thing every SLP keeps mentioning

Modeling means you use the device to talk more than you prompt your child to use it. You point to or press symbols while you speak, during ordinary daily life, without asking your child to copy you. Simple to describe, genuinely hard to do consistently.

The technical term is Aided Language Stimulation, and it's probably the best-studied strategy in AAC research. A 2018 review in the American Journal of Speech-Language Pathology found that aided language modeling was linked to gains in symbol comprehension and expressive symbol use in children with complex communication needs ^[3].

In practice: you're handing your child a snack. Instead of asking "do you want crackers?" and waiting for an answer, you say "crackers" while touching the cracker symbol. You're not demanding a response, just showing what's possible. Over hundreds of repetitions, the child learns what the symbols mean and starts connecting the device with getting what they want.

Most SLPs suggest aiming for something like 100 models a day across natural routines. That number sounds huge until you realize it covers meals, dressing, bath time, play, and walks. Basically, anything you say out loud is also something you can show on the device.

You don't need to model everything, though. Start with 10 to 20 core words your child actually cares about: "more," "stop," "want," "help," "go," "eat." Core vocabulary makes up roughly 80 percent of what people say daily, and unlike fringe (topic-specific) words, it transfers across situations ^[4].

How long before a child uses AAC on their own?

There's no single number here, and anyone offering one without caveats is oversimplifying. Many children show early symbol use within the first few weeks once modeling is consistent, but functional, spontaneous, multi-symbol communication typically takes 3 to 12 months of regular practice ^[5].

Some kids, particularly those with motor planning difficulties like childhood apraxia of speech, need more time simply because hitting accurate targets on a device is its own motor skill to learn.

A few things predict faster progress in the research: how often caregivers model, how much access time the child has with the device (not locked away overnight), and whether the vocabulary loaded actually matches what the child wants to talk about.

Progress rarely looks like progress early on. A child might start by batting at the device randomly, then land on one symbol consistently, then string two together. Each step is real movement, even though it's tempting to expect adult-like sentences by month two.

If you've put in 6 months of consistent daily modeling and truly see no change, bring it up with your speech-language pathologist. There may be motor, visual, or vocabulary issues worth troubleshooting.

Common mistakes parents make with AAC

A handful of patterns show up again and again, both in the research and in clinical practice.

Prompting instead of modeling is probably the biggest one. "Can you tell me what you want?" "Use your device." "Say it on your talker." These requests create pressure, and pressure tends to shut communication down rather than open it up; modeling opens a door instead of demanding someone walk through it.

Putting the device away is another. It needs to stay physically accessible at all times, the same way a speaking child's voice is always available. If it's charging in another room or zipped into a bag "for safekeeping," your child can't reach for it in the moment communication actually happens.

Loading vocabulary the adults want instead of what the child wants is a quieter mistake. A device full of "please," "thank you," and school-unit words is less motivating than one with a favorite character's name, "more," "silly," and "no." Start with what the child actually cares about.

Some families also expect the device to teach itself, assuming the child will figure it out alone. The device is a tool; you're the teacher, and that takes a real time commitment.

Last, treating AAC as a last resort costs families time they don't get back. Research supports introducing AAC early, even before a formal diagnosis is confirmed, and even for children who already have some speech. Starting early is associated with better outcomes than waiting ^[6].

Setting up the device so a child actually wants to use it

Vocabulary setup matters more than most families realize at first. A few things tend to make the difference.

Start with a mix of core and fringe words weighted toward what your specific child loves. If your child is obsessed with trains, "train," "go," "crash," "more," and "stop" belong on the first page together. Vocabulary that maps directly onto daily desires gets used; generic vocabulary doesn't.

Organize the display around how your child actually moves through the day, not how a curriculum is organized. Breakfast words near the kitchen routine, bedtime words near that part of the schedule. Matching layout to location cuts down the motor and cognitive load of hunting for the right symbol.

Display density matters too. Many devices arrive pre-loaded with far more symbols than a beginning communicator needs. Research on visual-scene and grid displays suggests starting with fewer, larger targets, sometimes 4 to 9 symbols, for beginners, then expanding as accuracy and speed improve ^[7].

Button size and spacing should match your child's motor control; a child with significant fine motor challenges needs bigger targets with more room between them. An occupational therapist's input here can matter as much as an SLP's.

And make it personal where you can. Many devices allow custom photos, and a picture of your child's actual cup instead of generic clip art can improve symbol recognition, especially for younger children.

Should you make your child use it, or wait until they want to?

Neither extreme works well. Forcing use breeds resistance and shuts communication down. Pure waiting assumes a child will independently discover how to use a complex tool, and most don't.

The approach with the most research behind it sits in between: create genuine opportunities to communicate, model heavily, then wait. The waiting isn't passive. You set up a situation where the child needs something (you're holding an item they want, or something unexpected happens), give a pause of 5 to 10 seconds, and watch. If nothing happens, you model on the device without judgment and move on.

This is sometimes called "expectant waiting," and it shows up in most evidence-based AAC implementation guides ^[2]. It tells the child you believe they have something to say and that you're giving them time to say it, rather than penalizing them for not responding on your schedule.

Worth being honest about: this takes real patience. Most of us fill silence out of habit, and training yourself to sit through 5 to 10 quiet seconds after offering a chance to communicate feels strange at first. It does get easier with practice.

How do I get my child's school or daycare to use the AAC device consistently too?

Consistency across environments is one of the strongest predictors of AAC success, and one of the hardest things to actually pull off.

If your child has an IEP in the United States, AAC needs to be written into it explicitly: which device, how often it's used, who models it, and how progress gets measured. Just having access to the device isn't enough. Specific AAC use goals and staff training requirements should be spelled out in writing ^[8].

Under IDEA (Individuals with Disabilities Education Act), assistive technology including AAC has to be considered for every child with an IEP, and if the team decides it's necessary, the school district is responsible for providing it ^[9].

A few things that help with schools in practice: ask the SLP for a one-page modeling guide the classroom aide can actually follow. Push for the device to stay present and accessible during all classroom activities, not just speech sessions. And ask for a communication plan that spells out how the whole team, teachers, aides, related service providers, models AAC throughout the day.

Daycare and informal settings are harder to require anything of, but even a short conversation like "when she touches this symbol, please respond as if she said the word" can shift things. Some families make a laminated card for caregivers listing the 10 to 15 most-used symbols and what they mean.

What if my child uses echolalia instead of the AAC device?

Echolalia is common in autistic children and in some children with other language profiles. It isn't a sign that AAC has failed, and it's not a reason to give up on the device.

Repeating words or phrases heard before can actually work alongside AAC rather than against it. Many children use echolalic phrases to communicate real meaning even when the connection isn't obvious, and recognizing that is the first step. Our article on echolalia meaning goes into how to interpret it.

In practice, echolalia and AAC use often show up together and even complement each other. A child might use a memorized phrase to open an interaction, then turn to the device to add something more specific. That's real communication happening.

If echolalia has become the dominant mode and the device is being ignored entirely, that's worth raising with your SLP directly. It might mean the vocabulary setup doesn't match what the child actually wants to say, or that the child needs more motor practice before the device feels as easy as talking.

Are there specific activities or routines that work best for building AAC use?

Yes. Motivating, predictable routines tend to produce the most AAC use, because the child knows what's coming and has something real to say about it.

Shared book reading is probably the best-studied context. Reading the same book over and over gives the child a predictable script, lets them anticipate which symbol comes next, and creates natural pauses where a response makes sense. Research on shared reading with AAC shows gains in both device use and language comprehension ^[10].

Play with clear turn-taking, like cause-and-effect toys, bubbles, or simple games, works well because it creates repeated moments where "more," "stop," and "go" genuinely mean something.

Meals are high-value too: the child wants things, the vocabulary is predictable (food names, "more," "done," "help"), and the payoff for communicating is immediate.

Bath time, getting dressed, and other transitions work well for older children because those routines follow a clear sequence and often involve real preferences, like wanting the blue shirt specifically.

What tends not to work: sit-down "practice AAC" sessions disconnected from any real need to communicate. Drilling symbols like flashcards doesn't teach a child the device is how they talk. It teaches them the device is something adults make them do.

How do I know if the AAC device we have is the right one?

This question doesn't get asked enough. Not every device fits every child, and the AAC market ranges from simple single-message buttons to full systems with thousands of vocabulary locations.

A proper AAC evaluation by a qualified SLP, ideally one with specific AAC training, should look at the child's motor abilities (hand, eye, sometimes foot or head), cognitive and language level, visual processing, and the environments where the device will actually be used. Most evaluations also include a "feature matching" step, comparing the child's profile against what specific devices can do ^[2].

If your child received a device without that kind of evaluation, or has changed a lot since the last one, it's worth asking for a new assessment. Some families find that switching systems or access methods, like eye gaze or switch scanning for kids with motor challenges, changes uptake dramatically.

Cost varies widely. Dedicated AAC devices typically run from around $200 for simple speech-generating devices to $8,000 or more for high-tech, eye-gaze systems. Many families get devices through school districts (if it's written into the IEP), Medicaid waivers, or private insurance, which may cover AAC as durable medical equipment ^[9].

App-based AAC on an iPad or similar tablet costs much less, often $200 to $300 for the app plus the device itself, and shows up more and more in research and clinical practice. It isn't inherently worse than a dedicated device for many users. Our overview of AAC devices covers the main categories if you're comparing options.

For children also working with a speech therapy speech therapist, coordinating device selection and programming through that relationship tends to work out better than choosing one on your own.

What does research say about AAC and spoken language development?

This is the question parents are often afraid to ask, worried the answer will confirm something painful. It won't.

A large body of research shows AAC use doesn't suppress speech development and in many cases supports it. A 2006 meta-analysis in the American Journal of Speech-Language Pathology found no evidence that AAC inhibited speech production, and reported positive effects on speech and language in many cases ^[11]. ASHA's position lines up with this: augmentative communication is a support, not a replacement.

The exact mechanism is a bit speculative, but the working theory is that AAC eases the communicative pressure that can suppress output in a child with significant communication challenges. When a child has a reliable way to get their message across, they're less frustrated, more engaged, and more likely to attempt speech alongside the device.

Some children who use AAC go on to develop functional spoken communication and rely on the device less over time. Others keep using AAC as their primary mode into adulthood, and that's a full, good life either way. Nobody can tell you in advance which path a specific child will take, and aiming for spoken language while fully supporting AAC use isn't a contradiction.

If your child also has apraxia of speech, motor planning challenges make speech production hard even when comprehension and the intent to communicate are strong. AAC is particularly well-supported for this group while speech therapy for the apraxia continues alongside it.

How can apps and at-home tools supplement what a therapist is doing?

Parents do the heavy lifting between sessions. A child who sees a speech therapist once a week for 30 minutes and gets no carry-over at home has about 30 minutes of intervention a week. A child whose parents model AAC across daily routines might get 2 to 4 hours of meaningful practice a day. The math matters.

The most useful thing you can do at home is the modeling described above. Beyond that, a few tools help.

Some families build a visual schedule with AAC modeling prompts as a reminder to themselves: during breakfast, model "more," "done," "want"; during bath, model "water," "soap," "stop." It sounds overly structured, but it helps on the days you're running on empty.

Video modeling, recording yourself or someone else using AAC and playing it back for the child, has some research support as a supplement ^[10]. It won't replace live interaction, but it can help some children pick up vocabulary.

Apps built for AAC practice and language learning can genuinely help if they're well-designed and tied to vocabulary the child actually uses. Little Words, for instance, is built for neurodivergent kids and can bridge practice between therapy sessions; their quiz at /start matches families to a starting point if you want to see whether it fits.

For families weighing online speech therapy, telehealth SLP sessions have grown a lot and can work well for AAC coaching, especially the parts where the therapist watches you model and gives feedback in real time.

One honest note: no app replaces an SLP for AAC evaluation, device programming, and individualized goal-setting. Apps and at-home tools are supplements, not substitutes, and anyone telling you otherwise is selling something.

How do you know AAC use is actually moving forward?

Progress with AAC can be easy to miss unless you're paying attention week to week. A child who reliably hits one symbol looks like small potatoes next to the talking kid down the street, but that's genuine, documentable progress.

A few things worth noting on a weekly basis: how many spontaneous, unprompted symbol activations you see in a day (even one counts), how many different symbols the child is using (a growing vocabulary is a good sign), and whether the child is starting to initiate communication rather than just responding to prompts, since initiation is a bigger skill and a real milestone. It also helps to notice whether the device is showing up in more places over time, not just at home.

You don't need a formal data sheet, though your SLP might want one eventually. A quick note in your phone after dinner, something like "three spontaneous 'more,' one 'help,' tried 'train' twice," takes half a minute and gives you a real picture over weeks and months.

Bring these notes to every therapy session. They help the SLP decide when to expand vocabulary, change the display, or adjust targets, and they help you see progress that's genuinely there but easy to lose sight of when you're living it every day. For children in autism spectrum speech therapy programs, this kind of tracking is often already built into the program's data collection, so it's worth asking how that information gets shared with you and what benchmarks the team is watching for.

Frequently asked questions

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

There's no minimum age. Research supports introducing AAC as early as 12 to 18 months if a child has significant communication delays, and some children start even younger. ASHA's guidance is clear that early AAC introduction, including before speech develops, is appropriate and doesn't delay spoken language. The idea of waiting until a child "tries everything else" first just isn't backed by the evidence.

My child hits random buttons on the AAC device. Is that normal?

Very normal, especially in the first weeks and months. Random activation is simply how a lot of children explore what the device does. It usually shifts toward purposeful use as modeling increases and the child starts connecting specific symbols to real outcomes. If that shift hasn't happened after several months of consistent modeling, mention it to your SLP so you can check whether motor skills, vision, or vocabulary choices need adjusting.

Will using an AAC device stop my child from learning to talk?

No. A 2006 meta-analysis in the American Journal of Speech-Language Pathology found no evidence that AAC holds back speech development, and found positive effects in many cases. ASHA's official position is that AAC supports communication rather than hindering speech. Plenty of children use AAC alongside developing spoken words, and some rely on the device less as speech grows. Both outcomes happen, and you don't have to pick one path over the other.

How many words should be on an AAC device for a beginner?

Most SLPs start beginners with 9 to 16 core vocabulary symbols and expand from there. Words like 'more,' 'want,' 'stop,' 'help,' 'go,' and 'no' make up around 80 percent of daily communication and work across many situations. Devices often ship with hundreds of symbols, and starting with too many tends to overwhelm new users. Fewer, larger, well-chosen targets usually get a child up and running faster.

My child uses their AAC device at home but not at school. What should I do?

This comes up a lot and it's fixable. Usually it means school staff aren't modeling the device or aren't giving the child real chances to communicate with it. Ask for an IEP meeting to add specific AAC goals, staff modeling requirements, and data collection to the plan. Under IDEA, if AAC is written into the IEP, the school has to implement it. A communication log between home and school helps too.

Is an iPad AAC app as good as a dedicated device?

For many kids, yes. Research increasingly shows similar outcomes between good AAC apps on tablets and dedicated devices, and the app market has matured quite a bit. Dedicated devices are sturdier and harder to turn into entertainment devices, which some families prefer for that reason alone. What matters most is how the vocabulary is organized, how the child accesses it, and the quality of modeling, not whether it's a tablet or dedicated hardware.

Who pays for an AAC device?

There are several routes. Medicaid covers AAC as durable medical equipment in most states with a physician's prescription and SLP documentation. If AAC is written into an IEP as necessary for education, the school district provides it at no cost under IDEA. Private insurance may cover part or all of the cost depending on the plan, and some nonprofits and state assistive technology programs offer loans or grants. Dedicated devices typically run from around $200 to $8,000 depending on the system.

My child is frustrated with the AAC device and throws it. What do I do?

Throwing or refusing the device is usually communication in its own right: it's too hard to use, it isn't getting results, or it's missing vocabulary the child actually needs. Check whether it's physically comfortable to access, whether it has words for high-priority wants and feelings like 'frustrated' and 'stop,' and whether you're responding consistently every time it's used. Easing up the pressure and increasing modeling usually turns this around within a few weeks.

Can a child use AAC if they have some speech?

Absolutely. AAC fits any child whose natural speech isn't meeting their daily communication needs, no matter how much speech they already have. Plenty of effective AAC users have partial speech. Using both together is called 'multimodal communication' and ASHA specifically supports it. The goal is always to expand a child's overall communication toolkit, not to replace what's already working.

How often should AAC be modeled each day?

Most SLP guidance aims for modeling across every daily routine, roughly 100 or more models a day once you count meals, dressing, play, bath time, and transitions. That sounds like a lot, but it breaks down to about 10 to 15 modeling moments per routine across an ordinary day. Consistency beats perfection here: even 40 to 50 models a day gives meaningful input compared with using the device only during formal practice sessions.

Should siblings and grandparents use the AAC device too?

Yes, whenever they can. Kids learn a lot about communication just by watching it happen around them. When a sibling casually uses the device to ask for something or comment during play, it normalizes the device and adds modeling beyond what parents alone can offer. A short, informal walkthrough for grandparents or siblings, showing them 10 to 15 core symbols and what each means, goes a long way. The more the device is woven into ordinary family life, the more natural it becomes to use.

What is the difference between low-tech and high-tech AAC?

Low-tech AAC covers picture boards, PECS (Picture Exchange Communication System), symbol books, and any paper-based system that doesn't need power. High-tech AAC means speech-generating devices and tablet apps that produce synthesized or recorded voice. Both have research support, and some children do especially well with low-tech tools early on. Many families use both. The best AAC is simply whichever one the child actually uses most consistently to communicate.

How do I know if my child needs a new AAC evaluation?

It's worth requesting a new evaluation if the child has used the same setup for a year or more with no real progress, if their physical or cognitive abilities have changed significantly, if the vocabulary no longer matches their interests or school curriculum, or if they've started refusing the device altogether. An SLP experienced with AAC can run a feature-matching evaluation to see whether a different system or access method would work better.

Can AAC help a child with autism who uses a lot of echolalia?

Yes. Echolalia and AAC use often show up together and can actually support each other. Echolalic phrases sometimes carry real meaning, and AAC gives a child extra, specific vocabulary to add detail beyond scripted phrases. Some research suggests children who use echolalia as a communication strategy respond well to AAC when the vocabulary is tied closely to their own interests and routines. This is a good area to work through with an SLP who knows both AAC and echolalia well.

Sources

1. Moorcroft, A., Scarinci, N., & Meyer, C. (2019). 'I've come to terms with it being a marathon, not a sprint': AAC implementation. Disability and Rehabilitation: Assistive Technology.: Less than half of surveyed families reported their AAC-using child communicating with the device across multiple settings.
2. American Speech-Language-Hearing Association (ASHA): Augmentative and Alternative Communication: ASHA states AAC supports communication development and does not hinder speech; expectant waiting and aided language stimulation are evidence-based AAC strategies.
3. Biggs, E. E., et al. (2018). Aided modeling intervention research review. American Journal of Speech-Language Pathology, ASHA.: Aided language modeling was associated with gains in symbol comprehension and expressive symbol use in children with complex communication needs.
4. Balandin, S., & Iacono, T. (1998). A few well-chosen words. Augmentative and Alternative Communication. Taylor & Francis.: Core vocabulary accounts for approximately 80 percent of words used in daily communication across contexts.
5. Romski, M., & Sevcik, R. A. (2005). Augmentative communication and early intervention. Infants & Young Children. Lippincott Williams & Wilkins.: Meaningful gains in functional AAC use typically appear after several months of consistent modeling and intervention.
6. American Academy of Pediatrics (AAP): Early Intervention: Early intervention, including AAC support, is associated with better developmental outcomes than delayed initiation.
7. Drager, K. D. R., et al. (2006). Dynamic displays and symbol-based AAC for young children. Augmentative and Alternative Communication.: Research on display density suggests that starting with fewer, larger targets improves beginning AAC user accuracy and uptake.
8. U.S. Department of Education: Individuals with Disabilities Education Act (IDEA), Assistive Technology: Under IDEA, assistive technology including AAC must be considered for every child with an IEP; if determined necessary, the school must provide it.
9. Centers for Medicare & Medicaid Services (CMS): Medicaid Coverage of Augmentative and Alternative Communication Devices: Medicaid covers AAC devices as durable medical equipment in most states with appropriate documentation from a physician and SLP.
10. Binger, C., & Light, J. (2007). The effect of aided AAC modeling on the expression of multi-symbol messages. Journal of Speech, Language, and Hearing Research. ASHA.: Shared book reading and aided modeling during predictable routines are associated with gains in AAC device use and language comprehension.
11. Millar, D. C., Light, J. C., & Schlosser, R. W. (2006). The impact of AAC on natural speech development. American Journal of Speech-Language Pathology. ASHA.: A meta-analysis found no evidence that AAC inhibited speech development and found positive effects on speech and language in many participants.