Swimming lessons for a child with DLD: explanations that land [2026]

A child with a developmental language disorder (DLD) often does not understand what is being said in the pool, even when watching closely. That is not defiance and not a hearing problem. One instruction at a time, demonstrating instead of explaining, and using the same words every lesson usually help such a child follow along, sometimes with a bit more repetition.

DLD is internationally called developmental language disorder and occurs in about 1 in 14 preschoolers. So in a group of twelve swim students there is regularly a child who only picks up half the instructions, often without anyone noticing. A swimming teacher does not diagnose that, and does not have to. Organizing the lesson so the child can still keep up, that is the job.

What a developmental language disorder is

The core in two sentences

A child with DLD has difficulty understanding and using language, without hearing loss, autism or another known cause explaining it. The disorder affects every language the child speaks, including the language that goes well at home.

The child who does not listen

The US NIDCD puts it plainly: a child sometimes does not follow instructions not because it is stubborn, but because it does not fully understand the words. Teachers easily interpret that behavior as restlessness, boredom or disinterest. In the pool that happens every week.

How common it is

About 1 in 14 preschoolers has a developmental language disorder, reports the NIDCD. The UK professional association of speech therapists RCSLT gives 7.58 percent of children. Those figures come from different countries and measurement methods, but they point the same way: this is not rare.

What DLD is not

Raising a child bilingually does not cause DLD. A bilingual child with DLD does not have more trouble than a monolingual child with DLD, although the disorder affects every language the child speaks. In a family that speaks another language at home you sometimes see something striking for that reason: the child chatters easily about football, but does not follow a simple instruction in the lesson.

It does not just grow out of it

DLD is a developmental disorder that persists, although its form changes with age. A preschooler with DLD makes many grammatical mistakes; a teenager with DLD avoids long sentences and struggles with figurative language. Support helps, and much of that support is in the way people around the child talk. That is where a swim teacher can make a difference: in how an instruction crosses the pool edge.

Why the pool is a tricky place

Echo, distance and water in the ears

A pool is an echoing space. The instructor stands on the edge, the child in the water, and between them there is splashing, shouting and reverberation. Words that remain clear in a quiet room disappear here. A child with DLD needs those words even more.

Listening and moving at the same time

Giving instructions while a child is using their arms demands a lot. The child must listen, turn the words into movement and at the same time float or stand. For a child who already finds language hard, that is too much at once.

Nodding without understanding

Children with language problems quickly learn to pretend they understand. They nod, say yes and look at what the others do. In a line of exercises that does not stand out, until the child must do something alone. Then it becomes clear the instruction never arrived.

Tiredness that looks like behavior

Following language for half an hour in a noisy space costs energy. A child who starts messing around after twenty minutes, disappears under water or gets angry, is often simply tired. The NIDCD describes that pattern: a child who struggles to communicate can become frustrated and show that in behavior.

Instructions that land

One instruction at a time

Do not say "grab your board, stand at the side and wait for my whistle". Say "grab your board". Wait. Then the next step. Every step you attach to an instruction is another chance for the child to lose track.

Demonstrate, then have them copy

The strongest instruction in the pool is an example. Demonstrate the movement slowly, let the child copy it and then do it together. Words remain necessary, but as support for what the child sees.

The same words, every lesson

Choose fixed terms and stick to them: board, edge, dive, back. Synonyms make things harder for a child with DLD. If the whole team uses the same words, a child does not have to decode the lesson anew each week.

Show where you are going

A pictogram on the pool edge, the equipment already laid out, pointing to where the exercise will take place: that gives anchors before the instruction starts. Gestures and facial expressions help too. Someone who talks with a hand in front of their mouth or from the other side of the lane, removes information without realizing it.

Give time to process

Children with DLD often need more time to process words. Leaving a few seconds of silence after an instruction feels long to the instructor, for the child it is normal. Repeating the question immediately throws away processing time and starts again.

Check with your eyes

"Do you understand?" almost always yields "yes". Ask the child to show something: point to the board, demonstrate the movement, see if they walk the right way. What you see is more reliable than what you hear.

What to avoid

Talking from the other side of the lane

Across ten meters of water your voice carries poorly and a child cannot see your mouth. Walk to the edge where the child stands, crouch and speak at eye level.

Shouting the same thing louder

If an instruction does not land, volume rarely helps. The issue lies with the words or their amount. Say it shorter, or show it.

Asking a child to retell

"What must you do?" seems like a good check, but it asks for language again. A child who can show the movement often understands the instruction. A correctly retold sentence says little about what happens in the water.

Comparing with the rest of the group

"Look how she does it" works for one child and blocks another. Someone who already feels behind will shut down at the comparison. Compare with the child s own previous lesson.

Signals you can pick up

The child looks at the neighbor

Children who miss the instruction copy the group. That works for simple lines and fails when the exercise differs from what the neighbor does.

Instructions are half executed

The child grabs the board, but does not lie down. Often only the first part of the sentence arrived and the rest dropped out.

Resistance to a new exercise

With a familiar exercise it goes well, with a new one the child shuts down. New means more language, and more language means a higher chance it will not arrive.

Parents recognize it at home

If parents say their child at home also "does not listen" as soon as two or three steps come together, that is a clue. They can often say which explanations work.

Why it matters that these children keep coming

Someone who misses the instruction does not enjoy lessons. That makes sense, but the consequences go further than a broken sequence of lessons.

Children drop out if the lesson does not land

A systematic review of research into dropout among swimmers names recurring reasons: lack of enjoyment, feeling that skills do not improve, and conflicts with the coach or other swimmers. French research among 160,861 swimmers shows how skewed that can be: of the weakest ten percent of thirteen year old girls, 78 percent stop, compared with 8.7 percent of the strongest ten percent. That research concerns competitive swimmers. The direction will feel familiar to any swim teacher.

The numbers behind drowning

The WHO counts about 300,000 drowning deaths worldwide per year. Children under five account for almost a quarter of that. For children aged 5 to 14 drowning is the third cause of death. Those numbers make clear what a child loses if they stop.

Ten years is a turning point

Royal Life Saving Australia reported in October 2025 that the drowning risk between ages 10 and 20 is thirteen times higher. More than half of ten year olds and 40 percent of fifteen year olds in that country cannot swim 50 meters. Sixty percent of children start swimming lessons before age three, and most have stopped before their seventh year. Royal Life Saving warns that many of those children later never learn to swim.

What that means for your own lesson

A child with DLD who understands the lesson stays longer. The extra minutes you spend on demonstrating and repeating show in a group that stays.

Design the lesson around the child

A consistent instructor and a consistent spot

Changing faces means changing voices, tempos and words. For a child with DLD that is extra work. Where possible, keep the same instructor and the same spot in the lane. If changes are unavoidable, a short handover helps: which words does this child know, which exercise is in progress, where do they get stuck.

A smaller group or a quieter moment

In a group of six a child must filter a lot. Four children, or a lesson at a quiet time in the pool, gives room to watch and do. That does not need to be a separate track. Sometimes it is enough to place this child at the edge of the group, closer to you.

Fixed routine in the build up

Start and end each lesson the same way: the same arrival, the same warm up, the same closing game. Predictability replaces part of the instructions. Someone who knows what will come needs to listen less to know what comes.

Measure progress without words

You cannot ask a child well how they are doing if words are difficult. Observing works: does the child do the movement independently, with help, or not yet? Swimmigo works with a score from 0 to 6 per exercise, across 7 levels and 86 skills. You fill in what you see, and parents can read on the level page what those levels mean.

Behavior that is not a behavior problem

Refusing, clowning, diving away: these are often attempts to leave a situation that requires too much language. Respond to the underlying cause. Fewer words, more demonstration, a short break from the group. A child who feels understood participates again.

Working with parents and the speech therapist

What to ask at intake

Do not ask for a diagnosis that may not exist. Ask what works: "What helps at home when you explain something?", "Which words does he already know?", "Is he seeing a speech therapist?" Parents often know exactly which cues land and which do not. That knowledge is more useful than a label.

Share what you see, in the family's language

A short update after the lesson takes two minutes and prevents a lot of uncertainty. Swimmigo sends messages with read receipts and the app is available in Dutch, English, German, French and Spanish, with Portuguese coming soon. For a family that is not yet fluent in the lesson language, that avoids a conversation where both sides search for words. Parents can view progress themselves via the parent page.

You do not diagnose

A swim teacher is not a speech therapist. If you see recurring signals, name them and refer to a speech therapist or doctor. Stick to what you observed: "He nods, but does the exercise differently. Maybe it is worth having this looked at."

Expectations you do not promise

Parents of a child with DLD have often had many conversations already. Be honest about what you can offer: more repetition, a calmer pace, extra explanation. Do not name a deadline you cannot guarantee, and do not promise a diploma you cannot award.

Diploma, pace and expectations

It usually takes longer

A child with DLD often needs more repetitions to link a movement to an instruction. That does not automatically mean an extra year, but a different pace. Look at what the child shows per level and track progress, instead of counting by date.

Safety requirements remain

In the end it is about a child who can rescue themselves in the water. You do not change that. What you can adapt is the route there: the order of exercises, the size of the steps, the amount of explanation.

A separate track or an adapted diploma

Some children complete the full track, others do not within the time a school uses. A separate diploma or an adapted track is then a valid outcome. In Zwemdiploma voor elk kind you can read how schools arrange that differently.

What the child notices

A child who hears every week that they do not listen eventually stops trying. A child who notices that the teacher explains differently keeps participating. You make that difference in the lesson.

What you record as a swim school

A score with a short note

A score says what a child did. A note says where they get stuck. "Understands arm over not, does it after demonstration" is useful information for the next lesson and for a colleague who fills in.

Handover within the team

With changing teachers the note is the group's memory. In Swimmigo the whole team sees the same progress, with roles for owner, manager and instructor. That way a child does not have to tell their story again each week. More about that is on the instructor page.

Messages and notifications

A short message after a milestone is often enough for parents. Swimmigo sends notifications in the same five languages and lets parents view progress themselves. The app is free for parents. A swim school chooses a Solo or School subscription, with 30 days free trial.

What the app does not do

Swimmigo does not diagnose and does not replace speech therapy. The app records what happens in the lesson and ensures parents and colleagues can see it. The pedagogical choices remain with you.

A child with DLD mainly needs different explanations: shorter, more visual and with more time. Someone who demonstrates instead of explains and keeps using the same words sees within a few weeks what a child dares and does change. Safety requirements remain; the pace may adjust.

More about how Swimmigo tracks progress and involves parents is on the how it works page and at the features.

Sources

• NIDCD (US): Developmental Language Disorder, updated May 8, 2023
• RCSLT (UK): Clinical information on developmental language disorder
• WHO: Drowning, fact sheet, May 1, 2026
• Royal Life Saving Australia: Parents urged to consider a second dose of swimming lessons before high school, October 30, 2025
• Monteiro et al.: Determinants and Reasons for Dropout in Swimming, a systematic review in Sports, 2017
• Difernand et al.: A survival analysis of dropout among French swimmers, Frontiers in Sports and Active Living, March 4, 2025