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Why Your Toddler "Forgets" English Words — and the 3-Layer System That Makes Them Stick

Kateryna Ivanova Kateryna Ivanova 25 min read
Young mother sitting on a living room rug at eye level with her toddler, who holds up a red apple and speaks

It happens at almost exactly the same point for every family. Somewhere around week six, a mother messages me a version of this: "She had about thirty English words. She used to say 'apple', 'shoes', 'more', 'open'. This week I asked her what it was and she just looked at me. It's like the last two months didn't happen."

And then, almost always, comes the conclusion she has already drawn: the method isn't working, my English isn't good enough, she needs a real teacher.

All three of those conclusions are wrong, and the reason is one of the most useful things I can teach a mother in her first year of doing English at home. Toddlers very rarely forget English words. What actually happens is that three completely different things get mistaken for forgetting — and because they look identical from the outside, mothers apply the wrong fix to all three. The most common wrong fix, repeating the word more times, makes two of the three worse.

This guide separates them. You will get a four-question test you can run in your kitchen this afternoon to find out which one you are dealing with, the memory science that explains each, and a specific repair for each — including the rule that changes home English more than any other single thing I teach: a word needs five places, not fifty repetitions.

Young mother sitting on a living room rug at eye level with her toddler, who holds up a red apple and speaks

Quick answer

A toddler who stops saying English words she used to say has almost certainly not lost them. Three different things look like forgetting: (1) the word never encoded properly — she heard it many times but never used it herself; (2) the word is stored with only one retrieval cue — it exists only in the room, ritual or object where it was learned; or (3) the word is stored but loses the race to a stronger, better-practised word in your home language. Only the first is a learning problem. The other two are access problems, and they are fixed by changing where and how you ask — not by drilling the word again. The single most reliable repair is to use the same word in five different contexts rather than repeating it fifty times in one.

What "forgetting" actually means at ages 1–5

When an adult says "I forgot the word", they usually mean it is gone. When a two-year-old appears to forget an English word, something much more specific is going on, and it helps enormously to know that memory has three separate stages that can each fail independently.

Encoding is how a word gets in. Storage is whether it stays. Retrieval is whether your child can get it back out at the moment you ask. Mothers almost always assume the problem is storage — that the word has evaporated. In four years of watching this pattern in families, storage is almost never the problem. It is nearly always encoding or retrieval.

There is a second distinction that matters even more, and it is the one that causes the most unnecessary panic. Recognition and recall are not the same skill, and recognition comes first by a wide margin. Your child can know a word perfectly well in the sense that she will turn her head, point, fetch the object, or laugh at the right moment — and still be unable to produce the sound herself on demand. That gap is not a defect. It is the normal architecture of early vocabulary, and it is why "she can't say it" is very weak evidence for "she doesn't know it".

What failedWhat you see at homeIs the word lost?What actually fixes it
Encoding — it never got inBlank look; no reaction even to the object; never used it spontaneouslyIt was never really thereChange how it goes in: action, choice, emotion, the child's own hands
Retrieval cue — filed in one placeKnows it in the bath but not in the kitchen; knows it with her cup but not with yoursNo — stored, but only findable in one settingFive contexts, deliberately varied
Retrieval competition — it loses the raceSays the Ukrainian or Russian word instantly instead; sometimes gets it a beat laterNo — it is simply slower than its rivalWait time, forced choice, and English-only moments

Read that table twice before you do anything else. If you take the wrong row, you will spend three weeks drilling a word your child already knows, which is the fastest way I know to make a toddler resent English.

The four-question test: which one is it?

This takes about ten minutes and needs one object your child used to name in English — let's say an apple. Do it when she is fed, rested and in a good mood. Do not call it a test, do not use a serious voice, and stop instantly if she loses interest.

Question 1 — Recognition. Put the apple next to two other things and say, warmly, "Where's the apple?" If she looks at it, touches it or hands it to you, the word is stored. Full stop. Everything after this is an access problem, not a learning problem.

Question 2 — Forced choice. Hold up the apple and a banana: "Apple or banana?" Choice questions bypass the hardest part of recall — she only has to pick between two options rather than search her whole vocabulary. If she can answer here but not to an open question, you have a retrieval issue, and it is a mild one.

Question 3 — Change the room. Take the same apple somewhere else entirely: the hallway, the balcony, the car. Ask again. If the word appears in one place but reliably vanishes in another, you have found the context trap, and it is the most common single cause I see.

Question 4 — Listen to what comes out instead. When she doesn't say "apple", does she say nothing at all, or does she immediately produce the word in your home language? Instant substitution with the home-language word is not forgetting. It is competition: two labels for one object, and the better-practised one wins.

Test resultDiagnosisGo to
No reaction even to recognition (Q1)Shallow or absent encodingCause 1
Recognises, but only in one room or with one object (Q3)Single retrieval cue — the context trapCause 2
Home-language word arrives instantly instead (Q4)Retrieval competitionCause 3
Answers forced choice, not open questions (Q2)Normal recall lag — needs the prompt ladderThe prompt ladder
Understands everything, produces almost nothing, in every languagePossibly a silent period — a different topicUnderstands but won't speak

Cause 1: the word never really got in

This is the only genuine learning failure of the three, and it has one overwhelmingly common source: the word was repeated at the child rather than used by the child.

Psychologists have understood since the 1970s that how deeply information is processed at the moment of learning predicts how well it is remembered far better than how many times it was repeated. Craik and Lockhart called this levels of processing, and the practical version for a toddler is beautifully concrete: the more of her body and her intentions a word passes through, the more firmly it lodges.

Here is the same word, "apple", entering a child's memory at five different depths. The difference in retention between the top row and the bottom row is not small — it is the difference between a word that fades in a fortnight and a word she still has next year.

DepthWhat it looks likeWhat the child doesHow well it holds
1. LabellingYou point and say "apple"ListensWeakest — fades fastest
2. Labelling with attentionYou hold it up, she looks, you name itLooks and listensWeak
3. Action"Wash the apple." "Put the apple in the bag."Moves her bodyGood — this is why TPR works
4. Choice"Apple or banana?" and she gets what she choseDecides, and the decision has a consequenceStrong
5. NeedShe wants the apple and the word gets it for herUses the word as a toolStrongest — often one-trial learning

Most home English lives permanently at depths 1 and 2, because that is what "teaching" feels like it should look like. Almost all of the durable learning happens at 3, 4 and 5. If your diagnosis was Cause 1, you do not need more exposure. You need to move the same word two rungs down this table, which usually costs nothing and takes no extra minutes in your day.

The most powerful rung is the last one. A word that genuinely gets a child something she wants — the apple, the door opened, one more turn — is learned with a speed that no amount of pointing can match. This is also why the games in learning English through play outperform flashcards so decisively: in a game, the word does something.

Cause 2: the word lives in only one place

Mother in a bright kitchen holding a red apple while her toddler on a step stool reaches for it and speaks

This is the cause almost nobody explains to parents, and it accounts for more "she's forgotten everything" messages than the other two combined.

Memory does not store a word as a clean dictionary entry. It stores the word together with the circumstances in which it was learned — the room, the light, the object, your voice, the time of day, what she was doing with her hands. Retrieval then works best when those circumstances come back. Psychologists call this the encoding specificity principle (Tulving and Thomson), and the most famous demonstration involved scuba divers who learned word lists either underwater or on the beach: they recalled markedly more when tested in the same environment they had learned in.

Your kitchen is your child's underwater. If "apple" was learned exclusively at snack time, sitting in the same chair, from the same fruit bowl, then "apple" is not filed under apple. It is filed under snack-time-in-my-chair. Take her to the supermarket and ask her what that red thing is, and the cue is missing, so the word is missing. She has not forgotten it. You have removed the handle it was stored by.

This produces the exact pattern mothers report as forgetting: the word is perfect at home and absent everywhere else, or perfect for weeks and then apparently gone when the routine changes — a new flat, a holiday, dropping the afternoon nap, starting nursery.

The five-context rule

So here is the rule I give every mother in the course, and it is the highest-value single change most families make:

A word is not learned when it has been repeated fifty times. It is learned when it has been used in five genuinely different contexts.

Five contexts give a word five separate handles, so that any one of them can pull it out. Fifty repetitions in one context give it one very polished handle that only works in that room. Here is what five contexts looks like for a single word across an ordinary week — note that this adds no new time to your day at all.

ContextWhereWhat you sayWhat changes
1. The real objectKitchen, snack time"Here's your apple."Baseline
2. A different settingSupermarket, park bench"Look — apples! So many apples."Place
3. A pictureBook, on the sofa"Where's the apple? There it is."Real object → symbol
4. Pretend playToy kitchen, teddy's picnic"Teddy wants an apple. Give teddy the apple."Reality → imagination
5. A song or rhymeCar, bath, tidy-up timeAny counting or fruit song with the word in itMelody as an extra cue

Do that with ten words rather than fifty repetitions of twenty words, and the difference by month three is dramatic. It is also the reason the method I teach is built on daily rituals across the whole day rather than a single "English time" — a lesson slot is, by definition, one context.

Cause 3: the word is there but loses the race

Your child has two labels competing for one thing. One of them she has heard several thousand times, from everyone she loves, since birth. The other she has heard a few hundred times, from one person, for two months. When she reaches for the concept, both labels start moving, and the stronger one arrives first almost every time.

This is not confusion, and it is not a sign that the two languages are tangled. Bilingual children keep their languages remarkably well separated from very early on. It is simply that access speed follows practice, and the home language has a colossal head start. Researchers describe this in terms of relative exposure and language dominance: the proportion of a child's input that is in a language predicts the vocabulary she has in it, and the ease with which she reaches it.

Three things follow from this, and all three are reassuring:

  • Silence is not loss. A word that loses the race is still fully stored. You will often see this half a second later — she says the Ukrainian word, then adds the English one quietly, to herself. That is the losing runner arriving.
  • Relearning is astonishingly fast. When a word that seemed "gone" comes back after one or two exposures rather than the twenty it originally took, that is proof it was never gone. Ebbinghaus named this savings, and it is the single best evidence you have that your work is still in there.
  • Dominance shifts, and it shifts both ways. A child who starts an English-medium nursery can flip within months. That does not erase what you built — it changes which language wins the race.

The fix is not more repetition. It is removing the competition for short, predictable stretches: one ritual per day where the home-language label is simply not available, because you are playing a game whose rules are in English, or because teddy genuinely only understands English. If your child actively protests at English rather than simply defaulting to the home language, that is a different problem with a different solution — see when your child refuses to speak English.

Why forgetting is the mechanism, not the failure

Here is the idea that changes how mothers feel about all of this, and I wish it were taught in every parenting book.

Memory that is never allowed to fade never gets strong. Since Ebbinghaus mapped the forgetting curve in the 1880s, and across a very large modern literature on distributed practice, the finding has been consistent and slightly counter-intuitive: material revisited after a delay, when it has partly faded, is retained far better than material revisited immediately. Robert Bjork's term for this is desirable difficulties — the effort of retrieval is not a symptom of weak learning, it is the thing that causes strong learning.

Translated for your kitchen: the moment your child pauses, frowns and then produces "apple" is worth more than ten fluent instant repetitions. That struggle is the word being strengthened. When mothers see the pause and rush to fill it — "apple, it's an apple, say apple" — they remove precisely the mechanism that would have made it permanent.

So the goal is not to prevent forgetting. The goal is to keep catching words on the way down. That is what the schedule below is for.

The three-layer system that makes words stick

Everything above resolves into three layers. Most home English does layer one thoroughly, layer two by accident, and layer three not at all — which is exactly the profile that produces a vocabulary that grows for six weeks and then stalls.

LayerJobWhat it looks likeMost common error
1. EncodingGet the word in deeplyAction, choice, need, emotion, her own handsLabelling and pointing only
2. RetrievalMake her pull it back outQuestions she must answer; gaps she must fill; wait timeTelling her the word instead of letting her reach
3. ConsolidationLet it settle and revisit it spaced outSleep, and planned returns at days 1, 3, 7, 21Massing everything into one day and never returning

A useful self-check: for every ten minutes of English you do today, how many seconds does your child spend producing rather than listening? If the honest answer is under thirty seconds, layer two is your bottleneck, and no amount of extra input will fix it.

How to ask so she has to reach for it

Mother crouching to her toddler's eye level at a market fruit display while the child holds up a red apple

Retrieval practice — the finding that being tested on material beats re-reading it — is one of the most robust results in memory research. But you cannot test a two-year-old, and you should not try. What you can do is climb a ladder of prompts, each of which asks for slightly more, and drop back a rung the moment she struggles twice.

RungPrompt typeExampleUse when
1Model — no demand"That's an apple."Brand new, or a bad day
2Recognition"Where's the apple?"She reacts but doesn't speak
3Forced choice"Apple or banana?"She recognises reliably
4Cloze — the gap"You're eating an…?" (and wait)She answers choices easily
5Open recall"What's this?"She fills gaps confidently
6Delayed recall"What did we buy at the shop today?"She names things on sight

Three rules make this work, and they matter more than the ladder itself:

  • Wait five full seconds. Count them. Adults typically wait about one second before filling a silence, and young children processing a second language routinely need three to five. Most "she doesn't know it" verdicts are delivered two seconds too early.
  • Never ask twice. If the answer doesn't come, drop a rung and turn it into a model: "That's right — it's an apple." No sighing, no "come on, you know this". A second demand converts a memory problem into a motivation problem, and motivation problems take far longer to repair.
  • Ask no more than three times in one interaction. Beyond that you have stopped playing and started examining, and toddlers can feel the difference instantly.

The revisit schedule that fits a real day

Spaced repetition is usually presented as an app with a review queue. That is useless with a two-year-old. But the principle underneath it is not, and it maps neatly onto rituals you already have. The plan below tracks a handful of words at a time — five is plenty — and each return costs seconds, not minutes.

WhenWhat to doRitual to hang it onTime
Day 0Introduce at encoding depth 3–5: action, choice or needWherever it naturally occurs1–2 min
Day 0, laterOne more use, in a different roomBath or bedtime20 sec
Day 1Prompt ladder, rung 3 (forced choice)Breakfast20 sec
Day 3New context — picture book or pretend playStory time1 min
Day 7Rung 4–5, out of the houseWalk, shop, car30 sec
Day 21Delayed recall — mention it from memory, no object presentAny conversation15 sec

Six touches over three weeks, in five different contexts, totalling under five minutes per word. Compare that to what most families do: forty repetitions in one week, in one room, then nothing. The second approach costs more time and produces less.

How many repetitions does a word actually need?

You will find confident numbers online — "children need 70 repetitions", "it takes 21 days" — and I want to be straight with you about them: those figures are marketing, not findings. When a blog gives you a precise universal number for how many times a child must hear a word, it has invented it, and that should lower your trust in everything else on the page.

What the research does support is that the number varies enormously — from a single exposure to many dozens — and that it is driven by factors you can actually influence:

  • Concreteness. "Apple" is far easier than "again" or "gentle". Concrete nouns you can hold arrive fastest; function words and abstractions take longest.
  • Depth of encoding. A word that got her something she wanted can be learned in one trial. A word she was shown a flashcard of may need fifty.
  • Number of contexts. Varied contexts dramatically reduce the total exposures needed for durable learning.
  • Share of exposure. A child hearing English 20% of her waking time will need more calendar weeks per word than one hearing it 50% — the same learning, spread over more days.
  • Emotional salience. Words attached to laughter, surprise or strong wanting stick disproportionately. This is not sentimentality; it is how memory is weighted.

So the honest answer to "how many times?" is: fewer than you fear, if you use the word well; more than you can bear, if you only point at it.

The layer almost everyone skips: sleep

Consolidation — the process that moves a fragile new memory into durable storage — happens substantially during sleep, and in the age group we are talking about that includes naps. Research with toddlers and infants has repeatedly found that a nap after learning new words supports retention and, importantly, generalisation: the ability to apply a newly learned label to a new example rather than only the exact object it was learned on.

That generalisation point is directly relevant to everything above, because generalising is precisely what breaks the context trap. Two practical consequences:

  • Put new words before sleep, not after. The last twenty minutes before a nap or bedtime is prime real estate. A bedtime story, a quiet naming game, three words in the bath — this is the highest-value English slot in the day, and it is one most families are already awake for.
  • A week of bad sleep will look exactly like forgetting. Teething, illness, a time-zone change, a dropped nap — vocabulary regresses visibly and then recovers. Before you conclude the method has failed, check whether the last fortnight was a normal sleep fortnight.

The seven-day rescue plan for faded words

Use this when a specific set of words — say five to eight — has gone quiet. It is deliberately small. Rescuing five words properly beats re-teaching thirty badly.

DayFocusWhat you actually do
1DiagnoseRun the four-question test on three of the words. Write down which cause you found. Do no teaching at all today.
2Re-enter at depthBring each word back through action or need, never through pointing. Five words, five moments across the day.
3Second contextSame words, different room. If day 2 was the kitchen, today is the hallway, the car, outside.
4Symbolic contextThe same words in a book and in pretend play. Real object → picture → teddy.
5Rest and singNo questions today. Songs and stories containing the words. This is not a day off — it is spacing.
6RetrievalPrompt ladder, rungs 3 and 4 only. Five seconds of wait time. Never ask twice.
7Out of the houseUse every word once, somewhere that is not home. Note which ones survive the trip — those are genuinely learned.

Then leave those words alone for two weeks and come back on day 21. The gap is not neglect. The gap is what makes them permanent.

Nine mistakes that cause forgetting

MistakeWhy it backfiresDo this instead
Drilling the same word in the same placeBuilds one retrieval cue that fails everywhere elseFive contexts, deliberately varied
Filling the pause after one secondRemoves the retrieval effort that creates strengthWait five seconds, every time
Asking "what's this?" repeatedlyTurns play into examination; invites refusalMaximum three prompts per interaction
Adding new words while old ones fadeNothing gets the spaced returns it needsCap active words at five to eight
Testing in front of other peoplePerformance pressure suppresses productionNever perform your child
Re-teaching from zero when a word goes quietWastes the savings effect; signals failureAssume it is stored; change the cue
Flashcard stacks as the main methodEncoding depth 1; no context variety; no needGames, rituals and real objects
Doing English only in one daily slotOne slot is one context, by definitionSpread across morning, meals, walk, bath
Judging a fortnight of illness or bad sleepConsolidation is impaired; regression is temporaryWait for a normal week before judging

Holidays, trips home and long breaks

A three-week trip to see grandparents, where the child is immersed in the home language and hears no English at all, produces the most alarming version of this pattern: a child who arrives back apparently having lost half of what she had.

She has not. What has happened is a temporary swing in dominance plus the removal of every English retrieval cue at once. In my experience with families, most of it returns within one to two weeks of normal routine, and it returns through the savings effect — one or two exposures rather than twenty. The practical measures are small:

  • Take one portable ritual with you — the same three songs, or the same bedtime book. It preserves a cue that does not depend on your kitchen.
  • On return, restart with the oldest, best-established words, not the newest. You want early wins, and the oldest words come back fastest.
  • Expect a 7–14 day recovery and do not add anything new until it has happened.

For families raising children away from their home country, this cuts both ways — the same mechanisms apply to keeping Ukrainian strong. That balance is worth its own read: English for Ukrainian children abroad.

When it isn't memory at all

Everything in this guide assumes typical language development in a child who is progressing normally in her strongest language. My background includes speech therapy as well as language teaching, and this is the point where I want to be careful rather than reassuring.

Loss of English words is not, by itself, a warning sign. The following patterns are worth a professional conversation, and note that every one of them is about overall language, not English:

  • Loss of words in every language, especially the home language, sustained over weeks
  • Loss of skills she previously had — not just words, but gestures, pointing, waving, responding to her name
  • Reduced eye contact or a drop in social back-and-forth alongside the language change
  • No clear words at all by around 18 months, or no two-word combinations by around 30 months, counted across all her languages together
  • Any regression that is sudden and does not recover within a few weeks

If you do seek an assessment, ask one question that changes the quality of the answer enormously: "Which languages did you assess?" A bilingual child evaluated in English alone will often look delayed when she is not. Her vocabulary must be counted across all her languages together — that combined total is the developmental measure, while the English share is only a measure of how the method is going. Confusing the two is the single most common reason bilingual children are wrongly flagged. There is more on this in does bilingualism delay speech? and on measuring progress properly in how to tell whether your child is actually learning English.

Where this fits in Mommy & Me English

If you have read this far, you may have noticed that almost none of the fixes above involve doing more English. They involve doing the same English in more places, asking instead of telling, waiting five seconds, and coming back on day 7 instead of day 1.

That is not a coincidence. It is the whole design principle behind the method I teach. Mommy & Me English is built for mothers of children aged one to five, and it is structured around daily rituals — morning, meals, walks, bath time, bedtime — precisely because rituals solve the two hardest problems in this article at once. They deliver the context variety that breaks the context trap, and they deliver the spacing that consolidation needs, without asking you to find an extra half hour that does not exist.

There are no textbooks and no cramming, because cramming is exactly the pattern that produces six weeks of progress followed by a stall. And your own English does not need to be perfect — the mechanisms above are about how a word is used, not how flawlessly it is pronounced. If that worry is the one holding you back, it is answered directly in teaching English when you're not fluent yourself.

Frequently asked questions

These are the questions mothers ask me most when words start going quiet.

Toddler talking animatedly to their laughing mother on a golden-hour park path while holding an apple

Where to go next

If you keep one sentence from this guide, keep this one: your child almost certainly has not forgotten the word — she cannot currently find it, and the handle you gave it only works in one room. Give it five handles instead of fifty polishes, ask instead of tell, wait five seconds, and come back in a week.

That is the entire repair, and it costs no additional time in a day that has none to spare.

If you would like the whole method rather than the repair — the rituals, the games, the songs and the week-by-week structure that keeps words from fading in the first place — that is what Mommy & Me English is. You can see how it fits together on the Mommy & Me journey page. I am Kateryna: Trinity College London CertTESOL, NILE Young Learners trained, with a background in speech therapy and primary education and over nine years teaching young children — and the mother's-eye view of all of this is the part I care about most. The free starter guide gives you a first week you can begin tomorrow.

And the mother whose daughter "lost" thirty words in week six? We ran the four-question test on a Tuesday. The child pointed to every single object correctly. Nothing had been lost at all — it had simply all been learned at one small table, in one chair, at one time of day. Three weeks later the words were back, this time in the car, the lift, the park and the bath. They have not gone anywhere since.

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Questions readers ask

Why does my toddler forget English words she used to know?

In almost all cases she has not lost them. Three different things look like forgetting: the word never encoded deeply (she heard it but never used it), the word is stored with only one retrieval cue (it works in the kitchen but nowhere else), or the word is stored but loses the race to a stronger word in your home language. Only the first is a learning problem. The other two are access problems and are fixed by changing where and how you ask, not by repeating the word more.

Is it normal for a 2-year-old to stop using words she previously said?

Yes. Early vocabulary is uneven, and words routinely drop out and return, especially during illness, teething, disrupted sleep, a house move or the start of nursery. A short quiet spell in one language, while overall communication keeps developing, is a normal part of bilingual development. Sustained loss of words across every language, including your home language, is a different matter and is worth a professional conversation.

How do I tell the difference between forgetting and a silent period?

Ask about history. Forgetting means she produced the words and then stopped. A silent period means she never produced them at all — she understands a great deal, follows instructions and reacts correctly, but has not yet started speaking that language. The silent period is a normal stage that can last weeks or months and needs patience rather than repair.

My child says the Ukrainian word instead of the English one. Is she confused?

No. Bilingual children separate their languages from very early on. What you are seeing is competition for access: two labels exist for one thing, and the better-practised one arrives first. It is a speed difference, not a confusion. Give her five full seconds, offer a forced choice ("apple or banana?"), and create short daily stretches where only English is available — a game with English rules, or a toy that genuinely only understands English.

How many times does a child need to hear a word before she remembers it?

There is no fixed number, and any site that gives you a precise universal figure has invented it. The real range runs from a single exposure to many dozens, and it depends on how concrete the word is, how deeply it was encoded, how many different contexts it appeared in, and how emotionally salient it was. A word that gets your child something she actually wants can be learned in one go; a word on a flashcard may need fifty.

Should I correct her when she uses the wrong word?

Not directly. Recast instead: reply naturally using the correct form without drawing attention to the error. If she says "more apple" while pointing at a pear, say "You want more pear? Here's the pear." She hears the correction embedded in a normal reply. Explicit correction at this age raises anxiety about speaking, which suppresses production — and production is exactly what you are trying to increase.

How long should I wait after asking before giving her the answer?

Five full seconds. Count them silently. Adults typically wait about one second before filling a silence, while a young child processing a second language often needs three to five seconds to retrieve a word. Most "she doesn't know it" conclusions are reached two seconds too early — and the pause itself, that visible effort of reaching, is the moment the memory is being strengthened.

Is it bad to ask "what's this?" over and over?

Yes, beyond about three prompts in one interaction. At that point you have stopped playing and started examining, and toddlers detect the difference immediately. Repeated demands convert a memory problem into a motivation problem, which takes far longer to repair. If an answer does not come, drop down a rung — turn the question into a friendly statement ("That's right, it's an apple") and move on.

Do flashcards help children remember English words?

They are one of the weakest tools available for ages one to five. Flashcards deliver shallow encoding, no context variety and no real need for the word, which is precisely the combination that produces fast fading. The same minutes spent on a game, a ritual or a real object your child handles herself will produce far more durable vocabulary. Cards work best as one context among five, never as the main method.

My child forgot everything after a three-week holiday. Have we lost it?

Almost certainly not. A long trip removes every English retrieval cue at once and swings language dominance toward the home language, which together produce a dramatic-looking drop. Most of it returns within one to two weeks of normal routine, and it returns after one or two exposures rather than the twenty it originally took — that speed is your proof the words were never gone. Restart with the oldest, best-established words and add nothing new until recovery.

Does screen time help vocabulary retention?

Very little for this age group, on its own. Passive viewing gives no retrieval practice, no response to the child, and usually only one context. Where video does help is as an additional context for words she is already meeting in real life, and as a source of native voices and songs. Watch with her and talk about it, and it becomes useful; leave her with it alone and it mostly does not transfer.

How many new English words should I introduce at once?

Five to eight active words at a time is plenty for a toddler. The limiting factor is not how many words she can hear but how many can receive the spaced returns and context variety they need to stick. Families who add new words weekly while old ones quietly fade end up with a vocabulary that never grows, because nothing ever completes the cycle.

Does my child need to nap for words to stick?

Sleep matters more than most parents realise. Consolidation — the process that turns a fragile new memory into a durable one — happens substantially during sleep, and research with toddlers has found that a nap after learning supports both retention and the ability to generalise a new word to new examples. Practically: put new words in the twenty minutes before a nap or bedtime, and expect a fortnight of broken sleep to look exactly like forgetting.

She knows the word at home but never says it at nursery. Why?

This is the context trap in its clearest form. The word was stored together with the circumstances it was learned in — your voice, that room, that object — and at nursery none of those cues are present, so the word is not retrievable even though it is fully stored. The repair is to use the same word deliberately in five different settings, so it has five separate handles rather than one.

When should I worry that this is a speech or language problem?

Losing English words alone is not a warning sign. Seek an assessment if words are being lost across every language including your home language over a period of weeks, if she is losing skills she previously had such as pointing, waving or responding to her name, if social back-and-forth drops away, or if there are no clear words by around 18 months or no two-word combinations by around 30 months counted across all her languages together. If you do go, ask which languages were assessed — a bilingual child evaluated in English alone often looks delayed when she is not.