Progress with PECS for Global Developmental Delay

When words feel out of reach, a single picture handed to you can become your child's first true 'I want to talk to you' — and that changes everything.

In short

With the Picture Exchange Communication System (PECS), many children with Global Developmental Delay (GDD) make real, steady progress — beginning with handing over one picture to ask for something they love, and growing into building short sentences, commenting on their world, and often using more spoken words along the way. Because PECS gives a child a reliable way to be understood, it usually reduces frustration and challenging behaviour too. Progress is gradual and child-led, but for many families that first independent picture exchange is a turning point.

What progress can look like

PECS is taught in structured phases, and a child with GDD can move through them at their own pace:

• Phase 1 — the first request: your child learns to pick up a picture of a wanted item and place it in your hand. This is the breakthrough moment — communication becomes intentional and initiated by your child.
• Phase 2 — persistence and distance: they learn to travel to their picture board and to you, building independence and motivation to communicate.
• Phase 3 — choosing: discriminating between pictures to choose what they actually want.
• Phases 4–6 — building language: combining pictures into simple sentences ("I want… biscuit"), then describing, asking and commenting ("I see… dog") — the foundations of real conversation.

Alongside this, families often notice fewer meltdowns (because needs are finally being met), more eye contact and shared attention, and for many children growth in spoken words — PECS does not hold speech back; the evidence shows it often encourages it.

What shapes the pace

Every child with GDD is different. Progress depends on consistent daily use across home, therapy and school, motivating items your child genuinely wants, and a coordinated team. PECS works best woven into speech and language therapy and used by everyone around your child — not just in the therapy room.

The Pinnacle way

AbilityScore® is part of Pinnacle’s developmental assessment. Diagnosis, where needed, requires an appropriately qualified healthcare professional — never from an app or online form. Our therapists assess where your child sits today, choose the right communication approach, and coach your family to use it everywhere. Explore our speech and language therapy support, understand how we build your child's developmental profile, and learn more about Pinnacle Blooms Network.

Trusted sources

American Speech-Language-Hearing Association (ASHA) guidance on augmentative and alternative communication (AAC); American Academy of Pediatrics (HealthyChildren.org) on supporting communication in developmental delay; WHO guidance on nurturing care and early childhood development.

Next step — Want to know if PECS is right for your child? Book an assessment with a Pinnacle speech-language therapist.

This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.