Picture Exchange (PECS) Deeper: How to Start
For many Indian families, PECS is the first AAC approach they encounter. A therapist shows up with a binder of small picture cards, hands a single card to a child, and asks the child to give it back in exchange for a biscuit. It looks deceptively simple. Behind that simple exchange sits a structured six-phase system that has helped thousands of non-speaking children build communication from the ground up.
Getting PECS right at home, especially in the first months, makes a big difference to how far it can take a family. Getting it slightly wrong is also common and fixable.
What PECS actually is across its phases
PECS is a six-phase protocol. Phase one teaches the basic exchange: the child hands a single picture to a communication partner to request a desired item. Phase two builds persistence and distance: the child travels across a room to find a partner and exchange a picture. Phase three teaches discrimination between two or more pictures so the child chooses what she actually wants. Phase four introduces sentence structure with an "I want" strip. Phase five teaches responding to "what do you want". Phase six teaches commenting beyond requests.
Most children do not race through all six phases. Many spend significant time in phases one to three, where the foundation is built. Some children, especially older ones moving into PECS late, can move through phases faster.
This sits inside the broader AAC guide for Indian families, where PECS is one approach among several.
Setting up PECS for the first time
Before the first session, identify five to ten items your child genuinely wants. Not items you wish she wanted. Items she will work for. This usually includes specific food items, a favourite toy, water, a particular blanket or a tablet for video. The list is personal, and it is okay if it looks small or unsophisticated. The motivation is what makes the exchange happen.
Print clear photographs of these items, not generic line drawings, especially for the first phase. Real photographs are easier for young children to connect with the actual item. Laminate the cards. Attach velcro to the back. Create a folder or binder where cards live.
Start phase one in a one-to-one setting, ideally with two adults. One adult is the communication partner. The other physically prompts the child from behind, helping her pick up the card and hand it to the partner. The partner immediately gives the desired item. No words from the partner during the exchange in phase one. The exchange must be the loudest thing in the room.
Common mistakes Indian parents make
The most common early mistake is talking too much. Parents narrate the whole exchange, asking the child what she wants, naming the picture, telling her to give the card. This well-meaning narration buries the exchange and slows learning. In phase one, silence around the exchange is the rule.
The second common mistake is choosing low-motivation items. A parent picks pictures of vegetables and books because those feel educational. The child has no interest in working for these, so the exchange does not happen. Phase one must be built around items the child desperately wants, even if those items are unhealthy or limited. Educational expansion comes later.
The third mistake is rushing through phases. The therapist moves from phase one to two within a week because the child seems to be getting it. Phase one needs to be solid across many days, many partners, many settings before phase two begins. A shaky foundation collapses later.
The fourth, and perhaps most damaging, is using PECS as a punishment-reward system. Withholding the desired item to force communication is different from gently waiting for an exchange. The line between the two matters, and crossing it makes PECS feel coercive rather than empowering.
Moving through the phases at home
Once phase one is solid, phase two stretches the exchange. The child has to travel a few metres to reach the partner. Then the partner moves further away. Then the child has to find the picture binder before finding the partner. Each step builds independence.
Phase three introduces choice. Two pictures sit on the front of the binder. The child must choose between two items she wants, one strongly preferred and one less so, to start. Over time, both items are similarly preferred so the choice is meaningful. This phase teaches discrimination, which is where many children plateau and need careful work.
Phase four onwards adds language structure. The "I want" sentence strip becomes the unit of exchange. Phases five and six extend communication into responses and comments. By this stage, many children are ready to add other forms of AAC alongside, including speech-generating devices.
Using PECS at school and in public
PECS only works if the team around the child uses it consistently. The class teacher needs to know how to receive a picture. The shadow teacher needs to know not to verbally prompt. The school helper needs to know what to do when a child hands her a card.
A short briefing for the school team, ideally written down, helps. Include what the binder looks like, what each picture means, how to respond to an exchange and what not to do. Reinforce it with a brief in-person session with the SLP if possible.
In public, PECS often shrinks to a small portable book or a card lanyard. The full binder stays at home and school. The child carries five to ten essential cards for outside use, including emergency communication cards if relevant. This is part of the broader at-home early intervention idea that AAC must work where life happens, not just where therapy happens.
When PECS should evolve into something else
PECS is a stepping stone for many children, not a permanent system. Signs that it is time to consider next steps include the child mastering phases four, five and six, the child outgrowing the limited vocabulary that a binder can hold, the child showing motor and cognitive readiness for a tablet-based system, and the child wanting to comment, ask questions and have longer exchanges that PECS cannot easily support.
Transitioning from PECS to a high-tech device should not be sudden. Run both side by side for several weeks. Map the most-used pictures from PECS into similar positions on the new app. Involve the SLP in the transition planning. The vocabulary base built through PECS is a strong foundation that carries over.
For some children, PECS remains useful as a backup even after high-tech is the primary system. A laminated card book never runs out of battery and works anywhere. There is no shame in keeping both alive.
If you want a Carely SLP to come home and help you set up PECS phase one properly, or to plan a transition from PECS to another system, the Carely at-home therapy team can support that work.
Frequently asked questions
How long should phase one take?
It varies widely. Some children learn the basic exchange within a few sessions. Others need several weeks. The rule is to stay in phase one until the exchange is reliable across multiple partners, settings and items.
Can I do PECS without a trained therapist?
You can start with self-study, but a trained therapist makes the work much faster and avoids common pitfalls. If a fully trained PECS therapist is not available locally, a general AAC-trained SLP is the next best option.
My child throws the cards rather than handing them over. What do I do?
This is common early on. The two-adult setup with gentle physical prompting from behind usually solves it. The prompter shapes the hand to pick up the card and reach toward the partner, without verbal cues, until the exchange happens.
Do we need actual photographs or are symbol drawings okay?
Real photographs are easier for most young children to start with. As the child grows, line drawings and symbols can be introduced. Many systems blend both over time.
Will my child outgrow PECS?
Many do. Some children outgrow it within a year. Others stay with PECS for longer. The goal is not to use PECS forever. It is to give the child a way to communicate now and a stepping stone to whatever comes next.