When your child isn’t speaking — or has very limited speech — the silence can feel enormous. Not because your child isn’t communicating. They almost certainly are, in ways you’re already learning to read. But the gap between what they need and what they can express, and the fear that the gap might not close, can be one of the most difficult parts of parenting a child with autism.
This article is written for parents in that place. It won’t offer promises about what your child will or won’t achieve — because no one can make those promises honestly. What it will offer is a clear, practical picture of what communication support for a nonverbal autistic child actually looks like, what strategies ABA therapists and speech-language pathologists use, what you can do at home, and how to take the next step if you haven’t already.
First: What “Nonverbal” Actually Means
The word “nonverbal” is used broadly, and it’s worth pausing on it — because it covers a very wide range of children.
Some children who are described as nonverbal produce no speech sounds at all. Others have some sounds or syllables but no functional words. Others have words but use them inconsistently or without clear communicative intent. Still others have lost words they once had. All of these children may be described as nonverbal or minimally verbal, but they have very different starting points and very different profiles of communication.
What “nonverbal” does not mean is that a child has nothing to say or is unable to communicate. Every child communicates — through behavior, through movement, through the direction of their gaze, through reaching or pulling or avoiding. The work of communication support is not starting from zero. It is building on what is already there.
It also does not mean that speech will never come. For some children, the pathway to verbal communication is long and not yet visible from where they are now. For others, verbal language develops later and differently than expected. There is no reliable way to predict an individual child’s trajectory — and any professional who tells you otherwise with certainty is overstepping what the evidence actually supports.
Why Communication Is the First Priority in ABA Therapy
In ABA therapy, communication is almost always among the very first goals targeted for a nonverbal child — and for a clear reason. When a child cannot communicate their needs, wants, pain, or discomfort effectively, the frustration that results often shows up as challenging behavior. Meltdowns, aggression, self-injury, withdrawal — these are frequently communication in the only form available to a child who doesn’t yet have another way to make themselves understood.
This means that building communication isn’t just about language development. It’s about reducing distress, improving wellbeing, and opening the door to every other area of learning and connection. A child who has a functional way to communicate — even through a single gesture, a picture card, or a device — is a more settled, more reachable child.
The Communication Strategies Used in ABA Therapy
A communication-focused ABA program for a nonverbal child is built around the child’s current abilities and what they find motivating. The strategies used are specific, evidence-based, and always individualized — but the approaches most commonly used include the following.
Functional Communication Training (FCT)
FCT is the strategy most directly aimed at giving a child a functional, appropriate way to express their needs. It starts by identifying what a child is trying to communicate through their behavior — “I want that,” “I don’t want this,” “I need help,” “I’m overwhelmed” — and then systematically teaches them an alternative way to express that same message.
That alternative might be a word, a sign, a gesture, pointing to a picture, pressing a button on a device, or handing someone a card. The specific form matters less than the function: the child has a reliable, effective way to communicate that gets a consistent response from the people around them.
Picture Exchange Communication System (PECS)
PECS is a structured programme that teaches children to communicate by exchanging picture cards with a communication partner. It begins with the simplest form of exchange — handing over a picture to request something they want — and gradually builds toward more complex communication like commenting, describing, and constructing simple sentences.
PECS is widely used because it doesn’t require a child to have any speech to begin, it can be started very early, and it often supports the development of verbal language rather than replacing it. Many children who begin with PECS go on to develop speech alongside their use of pictures.
Augmentative and Alternative Communication (AAC)
AAC refers to any tool or system that supplements or replaces spoken communication — including low-tech options like picture boards and communication books, and high-tech options like speech-generating devices and tablet-based communication apps.
Introducing AAC does not prevent a child from developing speech. This is one of the most common concerns parents share, and the research is consistent: giving a child an effective way to communicate does not reduce the motivation or development of verbal language. In many cases, it actively supports it by reducing frustration and increasing the number of successful communication interactions a child experiences.
A Speech-Language Pathologist (SLP) is the specialist best placed to assess which AAC system is the right fit for your child and to guide its introduction. This is one of the key reasons a combined ABA and speech therapy approach tends to serve nonverbal children particularly well — the ABA team supports the use of the system across environments and builds the communicative behaviors around it, while the SLP brings the specific expertise in language systems and AAC assessment.
Natural Environment Teaching (NET) for Communication
Rather than practising communication only in structured, table-based sessions, NET weaves communication opportunities into activities the child is already engaged in and motivated by. During play, during snack time, during a walk — the therapist creates natural moments where the child has a reason to communicate and the opportunity to practise doing so.
This matters because communication skills need to generalize. A child who can point to a picture card only during a structured session at a desk hasn’t yet learned to communicate — they’ve learned a performance. The goal is a child who uses their communication system spontaneously, with different people, in different places.
Mand Training
A “mand” in ABA terminology is a request — communicating to get something you want or need. Teaching a child to mand is typically one of the first communication goals in an ABA program, because it connects communication directly to motivation. When a child learns that communicating produces a desired outcome, they have a reason to communicate — which is the foundation everything else is built on.
What You Can Do at Home
The hours a child spends in therapy are a fraction of their waking day. Everything that happens in the hours in between shapes how quickly and how fully communication develops. Here are concrete things families can do at home that directly support what the therapy team is building.
Follow your child’s lead. Pay attention to what your child is already doing to communicate — where they look, what they reach toward, what sounds they make, what they move toward or away from. Responding to these signals as if they are intentional communication — because they are — reinforces that communication works and that you’re listening.
Create communication opportunities, not just requests. Rather than anticipating and meeting every need before your child has a chance to communicate, pause and create space for them to make an attempt. If they want a snack, hold it nearby and wait. If they want to play, wait for an attempt to initiate. These moments, repeated many times a day across natural routines, are where communication is actually learned.
Use consistent language and prompts. If the therapy team is using specific prompts, words, or signs, use the same ones at home. Consistency across environments is one of the most significant factors in how quickly a child develops and generalizes communication skills. Parent training gives you the tools to do this confidently — ask your BCBA if parent training is already part of your child’s program.
Reduce the demand for verbal responses. If your child is not yet verbal, asking them to “say it” as a condition of getting something can create pressure that shuts down communication rather than opening it up. Instead, accept and reinforce whatever communicative attempt your child makes — a look, a reach, a vocalization, a picture — and build from there.
Model communication without requiring imitation. Narrate your actions simply and clearly (“cup,” “open,” “more juice”) without demanding a response. This gives your child language input without the pressure of performance, and children often begin to use words or sounds they have heard repeatedly in low-pressure contexts.
The Role of Speech Therapy Alongside ABA
ABA therapy can address the behavioral and functional aspects of communication — building the motivation to communicate, reinforcing attempts, generalizing skills across environments. But the specific expertise in language systems, articulation, speech mechanics, and AAC assessment belongs to a Speech-Language Pathologist.
For nonverbal autistic children, a combined approach — where both a BCBA and an SLP are involved and communicating with each other — tends to produce more comprehensive outcomes than either service in isolation. At SenseBloom, speech therapy is offered alongside our ABA programs, meaning families don’t have to manage two separate providers to access coordinated support.
If you’re not sure whether your child might also benefit from speech therapy, this is worth raising directly with your BCBA or with your child’s pediatrician. Early involvement of an SLP — particularly for children with no functional communication system yet in place — is something most clinical teams would recommend without hesitation.
A Note for Parents Who Are Exhausted by This
Supporting a nonverbal child is demanding in ways that are hard to put into words unless you’re living it. The vigilance of always watching for communication attempts, the grief that can come in waves even when you’re fully committed to your child’s growth, the uncertainty about what communication will look like in a year or five years — these are real, and they are heavy.
It’s okay to find this hard. Seeking support for your own mental health and wellbeing is not a detour from supporting your child — it is part of it. SenseBloom’s psychotherapy services are available for children and youth, and if you are a caregiver managing your own stress alongside your child’s needs, that matters too.
Getting Started with Communication Support in the GTA
As a provider of ABA therapy in Toronto, SenseBloom supports nonverbal and minimally verbal children across the Greater Toronto Area, including North York, Ajax, Markham, and Whitby. Every program begins with a thorough assessment of where your child currently is and what their most meaningful next communication goals look like — not a template applied to every child, but a plan built around yours.
A free consultation is a no-pressure starting point if you’re not sure where to begin or what kind of support would be the right fit.
Frequently Asked Questions
Is my nonverbal child likely to develop speech? This is one of the most common and most difficult questions families ask, and the honest answer is that it varies significantly by child and cannot be reliably predicted. What research does consistently show is that early, intensive communication support — through ABA, speech therapy, or both — gives children the best opportunity to develop whatever communication skills they are able to develop. The goal of therapy is not to predict the future but to build toward it.
At what age should communication support begin for a nonverbal autistic child? As early as possible. The brain’s early developmental years are the most receptive window for building communication skills, and waiting for speech to “come naturally” when there are clear signs of delay is generally not recommended. If you’re noticing signs of concern, an assessment is the right first step regardless of your child’s age.
Will using AAC or PECS stop my child from developing speech? No. Research consistently shows that introducing AAC does not prevent or reduce verbal language development. In many cases, giving a child an effective way to communicate actually supports the development of speech by reducing frustration and increasing successful communication experiences.
What if my child resists using communication tools like picture cards or devices? Resistance to new tools is common and expected. A skilled ABA therapist or SLP will introduce AAC systems gradually and pair them with things the child finds highly motivating, so that communication becomes associated with positive outcomes rather than demands. The goal is always to make communication worth doing from the child’s perspective.
How do I know which communication approach is right for my child? This is a clinical question best answered through a proper assessment rather than a general article. A BCBA and SLP working together can evaluate your child’s current communication profile and recommend an approach — or combination of approaches — that fits where your child is right now.
This article is intended for general informational purposes and is not a substitute for individualized clinical guidance. Co-reviewed by Yasamin Yousefi , SenseBloom Therapy & Development.
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