When behaviour is doing the work of words

A child pushes a worksheet to the floor. Another bites their wrist in a crowded queue. A teenager slams a bedroom door after answering “fine” to every question.

Each action may carry information. None comes with a reliable translation printed underneath.

Communication is wider than speech

Children communicate through speech, writing, signs, pictures, gaze, movement, facial expression, objects, devices and the changes they make around them. Some of these are intentional messages. Others are responses that adults can learn from even when the child did not plan them for an audience.

NICE defines expressive communication in its learning-disability guidance as including verbal and non-verbal forms such as gesture, gaze, signing and methods that supplement or replace speech or writing ^[1]. That does not mean every gesture or action has one exact sentence attached. It means adults should look beyond spoken language when deciding whether a child has communicated.

A child may use fluent speech for interests and facts but struggle to report pain, uncertainty, fear or the need for a pause. Available words change with pressure.

Start with possible messages, not a translation

Common messages include:

• stop;
• help me;
• I do not understand;
• I need more time;
• this hurts;
• move away;
• I need a break;
• I want that;
• I am finished;
• notice me; or
• something has changed.

Write “may mean” beside each possibility. Throwing a worksheet may stop an inaccessible task on Monday and express frustration after a peer comment on Tuesday. Biting a wrist may appear with pain, waiting, overload or loss of a familiar item.

Use the behaviour decoder to compare what happened before, the child's condition at the time and what the action changed. Include occasions when the child managed the same situation another way.

Separate understanding from expression

A child can know what they want and lack a workable way to express it. They can also repeat the instruction without understanding what action it requires.

Check both directions:

• What reached the child? Was the language short, concrete, supported by context and given enough processing time?
• What could the child send back? Could they decline, ask a question, request a pause and report pain without constructing a full spoken sentence?

Echolalia, automatic agreement or silence should not be treated as proof of understanding. Ask the child to show the next step or offer a meaningful choice. The article on literal language gives ways to make instructions clearer without making them childish.

Choose a message that can compete with the behaviour

If sweeping materials away stops a task in one second, “Please may I have a short break because I am becoming overwhelmed?” is not a realistic replacement during high pressure.

Begin with a faster form:

• place a break card on the desk;
• push the work to an agreed waiting position;
• point to stop, help or finished;
• use one sign or gesture;
• press a stored message on a device;
• send a single symbol or word; or
• move to an agreed safe place.

The first message can be brief. Adults can help the child add detail after the immediate need has been heard.

Match the form to the difficult moment. A picture stored in a bag will not help in the swimming pool. A spoken phrase may disappear during shutdown. A device that takes several screens to navigate may be too slow for urgent pain.

Make the new route work

Teaching the message is only half the task. The child needs to experience that adults notice it and respond consistently.

Agree what each message brings:

Break means the task pauses for three minutes and stays available to return to with help.

Stop means the adult stops touching or speaking while they check what must happen next for safety or care.

Help brings a prompt, demonstration or smaller first step.

A message does not guarantee every requested outcome. “No” must be heard even when an essential action still needs to happen. An adult can say, “I hear no. The medicine is still needed, so let us ask which form and timing are possible.” False choice teaches the child that communication changes nothing.

Respond promptly during practice. If the card receives a long lecture while pushing the work away ends the task immediately, the behaviour remains the more efficient route.

Do not remove one form to force another

Augmentative and alternative communication, or AAC, includes approaches that support or replace spoken communication. It may be unaided, such as signs and gestures, or aided, such as pictures, a communication book or a device.

RCSLT guidance says AAC should be considered individually and as part of a whole communication programme; systems may suit people with many different speech, language and communication profiles ^[2]. The presence or absence of one diagnosis does not decide whether a communication tool could help.

Keep successful signs, pictures, writing or device access available when speech emerges. Do not withhold an AAC system as a reward, remove it during conflict or insist that the child repeats the message verbally before it is honoured. Communication access is not a bargaining token.

Adults also need to learn the system. Model the same symbol or device message in ordinary life without demanding imitation. Keep it charged, within reach and supported across settings.

Create backups for predictable failures. Keep a small paper board beside a device, a printed choice near the bath or a shared gesture for places where equipment cannot go. A backup should preserve the child's core messages, not become a reason to stop maintaining their preferred system.

Teach communication partners too

A child's message works only when other people recognise it. Write a brief description of the form, likely meaning and expected response for family, school, clubs and respite staff. Include early signals as well as the clearest version. A child may first look at the door, then push work away, and only later throw it. Responding to the early signal makes communication safer and more efficient.

Check that adults do not assign one permanent meaning. Moving away might mean no, pain, noise, uncertainty or a need for time. A communication profile can say "usually asks for space; check for pain and show what happens next" rather than presenting a guaranteed translation.

If somebody misses the message, repair the interaction. Name what you now understand and respond if the need can still be met. The child should learn that communication can be clarified, not that one imperfect attempt has used up their chance.

Keep the route available with unfamiliar adults. A support that works only with one parent is valuable, but the plan should gradually help other trusted people recognise and honour it without making the child start from the beginning each time.

Check the need behind the message

Better communication does not make an inaccessible task accessible or treat pain. If a child repeatedly asks to escape noise, alter the sound and setting as well as teaching “break”. If “toilet” appears alongside distress and soiling, investigate health and access rather than praising the request and continuing unchanged.

Read when pain or illness may be changing behaviour if the pattern is new, physical or unexplained.

NICE autism guidance asks practitioners to consider communication, physical health, mental health, environment, routine and predictability when behaviour becomes challenging ^[3]. Avoid reducing the whole picture to “they need to use their words”.

Practise outside the hardest moment

Introduce the message when the child is regulated and the outcome is easy to deliver. Create brief, genuine opportunities:

Pause a familiar activity, show the “more” symbol and respond as soon as the child uses or reaches towards it.

Offer a manageable task, model “help” once and provide help immediately.

Avoid manufacturing distress or withholding an essential item to test communication. Practise enough for the route to feel familiar, then prompt it early in the real sequence.

Notice partial attempts. A glance towards the card, first sound, hand movement or move towards the safe place may be the child's available version under pressure.

Keep the message valid as the child grows

A teenager may not want a laminated card displayed in front of peers. Ask what feels private and age-respectful: a phone note, agreed hand signal, coloured pass, direct message or ordinary phrase.

Do not replace the child's preferred words because adults find them too blunt. “Stop” can be clearer than a socially polished sentence. Teach additional forms for different settings without making access to help depend on performance.

Make sure every adult knows the child's yes, no, pain and emergency signals. Record what is known and what remains uncertain. Invite correction from the child whenever possible.

When to ask for specialist help

Ask about speech and language therapy when a child has difficulty understanding language, expressing needs, using communication across settings or accessing an AAC system. A speech and language therapist can assess the child's broader communication profile; they are not there only to work on pronunciation.

Seek review if communication skills are lost, distress is increasing, the child cannot report essential needs or current strategies work only with one trained adult. Sudden loss of communication also needs medical consideration.

If behaviour is dangerous, act for immediate safety while preserving communication access. A communication plan reduces future barriers; it does not replace urgent help.

A useful next step

Choose one repeated sequence and write the shortest likely message: stop, help, break, pain, more time or something else. Ask how the child could send it before speech becomes unavailable.

Select one form, place it where the difficulty occurs and agree the adult response. Practise during a low-pressure moment, then notice early attempts in real life. The aim is not to make every message sound conventional. It is to give the child a route that is understood sooner, costs less and keeps more people safe.