The big debate: when should children learn to read?

When should children learn to read? It’s one of the most debated questions in primary education and the answer depends a great deal on where in the world you ask it. Walk into a reception classroom in the UK and you’ll likely see four-year-old children working through phonics sessions. Visit a Finnish preschool at the same age, and you’ll find children playing, singing and exploring stories together, with formal reading instruction still years away.

For international school teachers, this isn’t just an academic question. It shapes daily practice in classrooms filled with children from different educational systems, each arriving with their own expectations of what ‘learning to read’ should look like. Understanding the reasoning behind different approaches to early years reading can help you make more confident, informed decisions in your own setting, regardless of the curriculum you’re following.

The case for starting early

In the UK and the US, formal reading instruction typically begins between the ages of four and five. Children move into structured phonics programmes almost as soon as they begin school, learning their letter sounds, blending and simple decoding skills from their very first term.

The reasoning behind this early years reading approach is straightforward. Proponents argue that starting children young gives them a head start, building foundational skills before academic demands increase. They suggest that early exposure to print helps children become confident, independent learners sooner, which can support their progress across the wider curriculum.

There’s also a practical argument. In systems with early formal instruction, reading becomes a tool for learning almost immediately. Children who read fluently by age six or seven can access information, follow instructions and engage with subject matter in ways that aren’t possible for non-readers.

Read more about How to get students into the rhythm of reading (for pleasure and for progress!)

The case for starting later

Scandinavian countries take a markedly different approach. In Finland, formal reading instruction typically doesn’t begin until children start primary education at age 7 – a full two to three years later than in the UK or the US. Before this, children spend their early years in play-based settings focused on social skills, oral language, and general development rather than letters and sounds.

Advocates of this later-start model argue that children who begin formal reading instruction later often catch up quickly, sometimes within just a year or two, and they go on to show strong reading comprehension by the time they reach upper primary school.

The thinking is more about sequencing: Finnish early year settings prioritise multiliteracy via spoken language, vocabulary and a love of stories before children learn to formally decode text. By the time reading instruction begins, children often have a rich oral foundation to draw on, which may support faster progress once decoding starts.

It’s useful to keep in mind that ‘later’ doesn’t mean ‘less’. Early years literacy is very much present in these systems but expressed differently – through talk, story and play rather than structured phonics lessons.

What the evidence says

So what does the research actually tell us? It’s complicated, and any teacher trying to draw firm conclusions from a single study or comparison should proceed with caution.

International comparisons, such as PISA rankings are often used to argue in favour of one system or another. Finland’s consistent ranking of above-OECD-average reading scores is frequently cited as evidence for a later start. However, other systems with early instruction also report strong outcomes.

Nevertheless, it’s important to note that these comparisons don’t isolate the age of reading instruction as the deciding factor. Cultural attitudes to education, teacher training, class sizes and family literacy all vary enormously between countries and any of them could influence outcomes independently of when formal reading begins.

What seems reasonably well supported is that the quality of early language exposure matters more than when specific reading instruction begins. Children who experience rich, varied language interactions in their early years, regardless of when decoding is formally taught, tend to be better prepared for reading when it does begin in school.

The Simple View of Reading (SVR), a widely used model in reading research, proposes that reading comprehension depends on two separate skills: decoding and linguistic comprehension. A child needs both to understand text – recognition of the words on a page can be taught earlier or later, but understanding the language itself requires years. Linguistic comprehension is developed gradually through talk, story and interaction, regardless of when formal reading instruction begins.

The role of play in early literacy

Play looks different depending on the system, but its function is the same. It may be a book corner with props for acting out a story that’s been read together. Or it might involve building dens outdoors while adults provide vocabulary to help describe what they’re doing.

The common factor for both is talk. Rhyming games build an ear for sounds within words that support later decoding. Story time introduces sentence structure and narrative sequence long before independent reading. Imaginative play pushes children to use language for negotiating roles, inventing dialogues or explaining rules to a friend.

None of this requires a formal curriculum. It requires time and adults to join in the play rather than simply supervising, while asking questions, introducing new words and modelling the construction of stories.

Implications for international schools

International schools rarely have the luxury of a single, consistent starting point. Your classroom might include a child who began phonics at age three in an early UK-curriculum nursery, sitting next to another who was in a play-based Scandinavian-style setting with no formal reading instruction at all.

Rather than assuming a fixed starting point for the class, it’s important to assess where each child actually is. Early years literacy foundations, oral language, vocabulary and listening skills may be strong even in children who have yet to start formal reading. These foundations are worth building on.

Having conversations with families is essential, so they understand why their child’s experience may look different to what they expected. It can also mean resisting the pressure to standardise too early, if a more flexible approach may be beneficial for your diverse classroom.

There’s no single right age, only the right response

There is no universally correct age to begin formal reading instruction. Countries with strong educational outcomes exist at both ends of the spectrum, and the research points more towards quality and consistency of language exposure than to any specific starting age.

For international school teachers, the most useful takeaway may not be a definitive answer but a mindset: stay responsive, meet children where they are, and treat early years reading as a part of a rich language journey.

Further reading

Explore more perspectives from our Big Debate series with blogs such as The big debate: Does handwriting still serve a purpose in today’s schools? or The big debate: Is the significance of oracy in schools just empty words?  

Browse our range of literacy and reading resources for international primary learners.