Why We Introduce AAC Early (And Why It Helps, Not Hinders, Speech)

Every family we work with wants the same thing: for their child to be understood, connected, and confident.

At Each Speech Pear Plum, we introduce AAC — Augmentative and Alternative Communication — early and purposefully, because communication is a human right, not something we wait for.

Let’s unpack what AAC is, why early introduction is best practice, and what the evidence says.

What Is AAC?

AAC includes tools and strategies that support communication, such as:

• Gestures and sign, including key word signing

• Picture symbol systems (e.g., PECS)

• Communication boards and books

• Speech-generating devices and apps

• PODD books (Pragmatic Organisation Dynamic Display)

AAC is not a single device — it’s a communication system tailored to each child’s strengths.

Best Practice: Communication Before Speech

Speech develops slowly and unevenly. But communication doesn’t need to wait for words.

Best practice frameworks in speech-language pathology and developmental disability support agree on two key principles:

1. Communication access first — all children should have means to express wants, needs, thoughts, and feelings from the start.

2. Language learning drives speech development — when language is modelled and used consistently, spoken language often grows, even in children who initially use AAC.

These principles are supported by national guidelines including:

• ASHA (American Speech-Language-Hearing Association) Position on AAC

  • “…AAC should be considered early and integrated into intervention.”

• International Society for Augmentative and Alternative Communication (ISAAC)

  • "AAC supports language development, social participation, and quality of life."

What the Evidence Says

Multiple high-quality research studies show that:

• Introducing AAC early does not impede speech development

• It increases overall communication, including spoken language

• Children with AAC use more language, more often, and have greater participation

• AAC reduces frustration and supports behaviour regulation

Here’s a sample of the peer-reviewed evidence:

• Millar, Light & Schlosser (2006) — AAC does not reduce speech outcomes; it supports them.

• Romski et al. (2010) — Children with ambiguous or limited speech who receive AAC demonstrate enhanced language development versus those who do not.

• Mirenda (2003) — AAC supports language, literacy, participation, and reduces behavioural stress.

• Light, Binger & Zajic (2012) — Longitudinal outcomes show that AAC supports both expressive and receptive language over time.

Early AAC Reduces Frustration and Builds Confidence

Think of communication as a building — language, ideas, motivation, and confidence are the bricks.

Without a means to communicate, children practise silence — and this limits language growth.

When we introduce AAC:

• Children express needs more clearly

• Behaviour stops functioning as the only communication tool

• Participation increases in home, play, childcare, and school

• Confidence grows — and motivation to try speech increases

Addressing the Common Question About Introducing AAC Early

“Will AAC stop my child from talking?”

The research consistently says: No. Introducing AAC does not stop speech — if anything, it gives a framework for speech to grow.

Why?

Because AAC:

• Provides a model of vocabulary and language structure

• Increases opportunities to communicate meaningfully

• Reduces communication stress

• Engages children socially and functionally

• Many children go on to develop speech alongside AAC.

Evidence-Informed Best Practice

When we introduce early AAC, we follow these evidence-based practice principles:

• Partner-Assisted Modelling (PM) — Adults model AAC alongside speech

• Systematic Language Input — consistent modelling of vocabulary and grammar

• Functional Communication Targets — goals based on real-life needs

• High-Frequency Intervention — AAC isn’t a one-off; it’s embedded in routines

• Collaborative Implementation — with parents, educators, therapists, and support workers

These approaches are validated in research and clinical guidelines, including:

• ASHA Practice Portal on AAC

• Better Communication Practice Guides (NSW Health)

Practical Supports and Resources

Here are resources for families and professionals to explore:

• AAC Language Lab — vocabulary sets, modelling, and implementation tips

• PrAACtical AAC — research summaries and practical AAC strategies

• ISAAC — global AAC advocacy, education, and community

• AAC-RERC — access to research, videos, and interventions

• ASHA AAC Resources — evidence-based articles and clinical guides

What This Means for Your Child

Introducing AAC early means:

• Your child has a voice today

• You reduce frustration and build connection

• You support language and communication growth

• You lay a foundation for future speech and participation

AAC is not a last-resort — it’s best practice for children who struggle to communicate.

At Each Speech Pear Plum, we:

• Celebrate every form of communication

• Focus on meaning before words

• Use evidence-based AAC strategies

• Partner with families to make communication joyful

Your child deserves a voice — let’s make sure they get one.

For more information or to book an assessment, visit Each Speech Pear Plum or contact us directly. We’re here to support your child’s journey to better communication, ensuring they have the most fun along the way.