That matters because those signs appear before a child is expected to read at all. Dyslexia can be spotted early, and early is when support works best.
A specific difficulty with accurate or fluent word reading, rooted in how the brain processes the sounds of language. It is not related to intelligence, effort, vision, or how much a child has been read to.
Research consistently points to a cluster of underlying difficulties: phonological awareness, verbal working memory, and the speed of retrieving words from memory. Deficits in phonological and phonemic awareness are the most strongly associated, alongside difficulty with letter-sound correspondence and with repeating spoken nonsense words.
The practical version: a child with dyslexia has trouble connecting the sounds they hear to the letters they see, and that connection is the machinery of reading.
Because the core difficulty is with sound rather than with print, signals appear well before reading does.
Difficulty learning or remembering nursery rhymes
Trouble recognizing words that rhyme
Difficulty clapping or counting syllables in a word
Slow to learn letter names and the sounds they make
Persistent difficulty retrieving familiar words — knowing the word but not being able to summon it
A family history of reading difficulty, which is a genuine risk factor worth mentioning to the school
None of these alone means dyslexia. A cluster of them, particularly with a family history, is worth raising.
This is when the gap usually becomes visible, and it's the most important window for acting.
Guessing at words from the first letter or the picture rather than sounding them out
Reading that stays slow and effortful long after classmates have become fluent
Reading a word correctly on one page and not recognizing it on the next
Spelling the same word several different ways in one piece of writing
Avoiding reading aloud, or becoming distressed when asked
Written work far below what the child can express out loud
That last one is the signature pattern. A child who tells a vivid story and then writes three laboured sentences isn't lacking ideas or effort.
Dyslexia doesn't disappear, but bright children often compensate well enough that it goes unnoticed until the reading load increases.
Reading accurately but very slowly, so homework takes far longer than it should
Avoiding reading-heavy subjects and gravitating toward others
Difficulty with unfamiliar or technical vocabulary, which can't be guessed from context
Persistent spelling difficulties despite good comprehension
Extreme fatigue after reading tasks that classmates find routine
Strong verbal reasoning paired with weak written output
Some difficulties emerge later rather than being missed earlier. Researchers note that rapid naming and morphological awareness become more predictive of late-emerging dyslexia, which may not appear until the later grades.
These are different things and the distinction causes a lot of confusion.
Screening is a brief check — often 15 to 30 minutes — that flags children who may need more support. It measures things like phonological awareness and letter-naming speed. Screening is not a diagnosis. Its purpose is to pinpoint which early literacy skills need attention and to identify children who may need a fuller evaluation.
A psychoeducational assessment is a much longer evaluation by a registered psychologist, and in Canada it's the route to a formal identification.
Ontario has moved on this. The Ontario Human Rights Commission's 2022 Right to Read inquiry found the province's public schools were failing students with reading disabilities by not using evidence-based reading instruction, and made 157 recommendations covering curriculum, early screening and intervention. Ontario has since revised its elementary Language curriculum and introduced early reading screening in the primary grades.
Ask your child's school what screening has been done and what it showed. You're entitled to know, and it's a reasonable question at any point.
Not sure whether what you're seeing is dyslexia or ordinary variation? A free assessment will show you exactly which reading skills are solid and which aren't, usually in about an hour.
The evidence here is unusually clear, which is good news.
Structured, systematic phonics instruction — explicitly teaching the relationships between sounds and letters, in a planned sequence, with plenty of practice — is the approach with the strongest research support. Interventions targeting phonological processing are the most recommended for children at risk.
What that looks like in practice:
Explicit and sequential, not incidental. Sounds are taught deliberately, in order, rather than picked up from exposure.
Multisensory, using sight, sound and movement together.
Frequent and short. Regular brief sessions beat occasional long ones.
Individual or very small group, because the pace has to match the child.
Continued past the point of apparent success, since fluency needs consolidating after accuracy arrives.
Be sceptical of anything promising a cure — coloured lenses, brain-training games alone, or dietary changes don't have strong evidence as standalone treatments.
You don't need a diagnosis to start. Structured phonics helps any struggling reader, so support can begin while an assessment is pending, which is often a wait of many months.
This gets less attention than it deserves. Children with dyslexia are more likely to experience generalized anxiety, and show higher rates of depression.
The likely reason is straightforward: a child who works hard and still can't do what classmates find easy tends to conclude something about themselves. That conclusion forms early and is harder to undo than the reading difficulty itself.
What helps:
Name it. Children usually find it a relief to learn there's a reason, and that it isn't about being clever or trying hard.
Separate reading from intelligence explicitly, out loud, more than once.
Keep reading aloud to them. It maintains vocabulary and keeps books associated with pleasure rather than failure.
Use audiobooks without guilt. Listening to a book above their reading level builds vocabulary and comprehension.
Watch for avoidance, which is usually anxiety rather than laziness.
If you notice persistent low mood or anxiety, raise it with your family doctor rather than treating it as a school issue.
Not by itself — reversing letters like b and d is common in young children and isn't a reliable indicator. The more meaningful early signs involve sound rather than shape: difficulty rhyming, breaking words into parts, or hearing the individual sounds in a spoken word. If reversals persist well past the early grades alongside those sound-based difficulties, that combination is worth raising.
Risk signs can be spotted in Kindergarten, before formal reading instruction has really begun, because the underlying difficulties are with sound processing rather than print. That's why several provinces have introduced early screening in the primary grades. Earlier identification means intervention can start before a child has experienced years of failure.
Not to begin. Structured phonics instruction benefits any struggling reader, so support can and should start while you're waiting for an assessment. A formal identification generally carries more weight for documented accommodations and for support that follows a student through school, so it's still worth pursuing.
Dyslexia is a lifelong difference in how the brain processes language, so it isn't outgrown — but that's much less discouraging than it sounds. With effective instruction, children with dyslexia become capable readers, and many become strong ones. What changes is the effort required, not the ceiling.
Yes, and many do. Dyslexia affects word reading rather than reasoning, comprehension or capability, and students with appropriate support and accommodations succeed at every level of education. The strongest predictors are early identification, good instruction, and a child who hasn't concluded they're incapable.
The earliest signs of dyslexia are about sound, not letters — difficulty rhyming, hearing syllables, or connecting sounds to the letters that make them. They appear before a child is expected to read, which is exactly when help works best.
Ask the school what screening has been done. Start structured phonics support without waiting for a diagnosis. And pay as much attention to what your child believes about themselves as to what they can decode — talk to us if you'd like help working out where the reading is breaking down, and we'll match your child with a certified teacher who knows how to rebuild it.
This article is general information about reading difficulties. It is not a diagnostic tool and cannot identify dyslexia. If you suspect your child has a reading disability, speak with your child's school and a registered psychologist.
About the author
President of Tutorbright