What Is the Science of Reading?

The science of reading is the research on how children learn to read. It is not a program, a product or a method you can buy.

Children have to be shown directly how letters stand for sounds, taught in a planned order, and given enough practice that reading a word stops taking effort. They need the language half too: the talk, the stories and the vocabulary that decide whether a word they can read means anything to them.

Schools are changing how they teach reading to match that research, which is usually why a parent hears about it.

The distinction that matters most is not phonics against books. It is what a child is told to do with a word they cannot yet read: work it out from the letters, rather than guess it from the picture or the sentence.

What is the science of reading, in simple terms?

The science of reading is a body of findings built up over decades of research: what has to be taught, how to teach it, and what a child needs practice at. It describes how reading develops, and it is not a curriculum, a program or a teaching method.

What it found comes to four points. Each one has a boundary, and the boundaries are where most of the argument about reading actually sits.

1. Reading has to be taught. Children pick up speech from the people around them. Written words are a code, and most children do not work the code out from being read to. That is not an argument against reading aloud, which is where the vocabulary and the knowledge come from.
2. A beginner should work an unfamiliar word out from its letters, rather than predict it from the picture or the sentence. That is not an argument against pictures: a picture can carry the story or confirm a word the child has already read, as long as it is not what supplies the word.
3. Letter sounds are taught in a planned order. Which order matters less than having one, and the research is clearer about that than about any particular sequence.
4. Phonics is necessary and it is not sufficient. It should not be most of the teaching either. The language half is not an optional extra, and neither are spelling and writing.

Two landmark reviews sit behind those. The National Reading Panel’s report of 2000 is the landmark US review, and it found systematic phonics more effective than teaching little or no phonics. Castles, Rastle and Nation’s 2018 review is the plain-language summary of where the field has landed, and it asks for instruction “based on a deep understanding of how language and writing systems work.” That is why a school’s reading program has a sequence in it rather than a reading list. The boundaries are Vaughn and Clemens, who set out what the research keeps being taken to say and does not.

Why is the science of reading in the news?

The science of reading itself is not new. The attention is, and it arrived from three directions at once: journalism, state legislation, and the publishers who sell schools their reading programs.

Journalism came first. Sold a Story, from APM Reports, reported on the reading methods many American schools had been using, and it reached parents rather than only teachers.

Legislation followed. Many states now require schools to use evidence-based reading instruction and to train teachers in it, and Education Week tracks which states have passed those laws.

Publishers moved last, revising the programs that schools buy.

So if your child’s school has changed its reading program in the last few years, this is usually why.

Science of reading vs. balanced literacy: what is the difference?

Balanced literacy and the science of reading disagree about one thing: what a child should do when they meet a word they cannot yet read. The science of reading says work it out from the letters and the sounds they stand for. Balanced literacy says work out which word would fit, from the picture and the sentence around it.

Whole language came first, and it held that children learn to read much as they learn to talk, by being surrounded by books worth reading, and that the words would come. Balanced literacy was the later compromise. It added phonics lessons but kept whole language’s way of handling an unfamiliar word in the moment.

That way is called three-cueing, because it gives a stuck child three cues to try: look at the picture, think about what would make sense, and check the first letter. Letters come third, and only the first one. It is easier to call the habit what it is, so the rest of this page calls it contextual guessing.

The difference shows up in one moment:

Approach	What a stuck child is told to do
Balanced literacy, using three-cueing	Look at the picture, think about what would make sense, check the first letter
The science of reading	Work the word out from its letters, then use the picture or story to check it

What that habit looks like in a child is a guide of its own. That matters at the moment your child stops on a word, because the prompt you give is the habit they build: letters first, and the picture only to check.

Our guide to teaching reading at home covers what follows at the kitchen table. The evidence favors systematic phonics, and this is one of the few questions in early reading where it is not close.

What balanced literacy got right it got very right, and the science of reading keeps all of it: reading aloud to children, rich books and the idea that the point of reading is to understand and enjoy what is on the page.

“Traditional phonics” is a third thing, and not another name for the science of reading. Phonics is one part of it. The science of reading also covers how phonics should be taught, which is systematically, in a planned sequence, and explicitly, shown rather than left to be noticed. And it covers the language half that phonics does not touch.

Is the science of reading just phonics?

No, and phonics is only the part in the news because it was the part most often left out.

The National Reading Panel identified five components as a way of organizing the research, and a reader needs all five.

Phonemic awareness is hearing the separate sounds inside a spoken word, telling them apart and putting them back together, with no writing or text involved. A child who can tell you that “ship” starts with /sh/ and ends with /p/, or who can blend /c/ /a/ /t/ into “cat” out loud, has it. It is what makes phonics possible: a sound a child cannot hear on its own is a sound they cannot attach a letter to. How to build it is a listening game rather than a worksheet.

Phonics is linking those sounds to the letters that spell them. A child learns that m stands for /m/, that sh is one sound rather than two, and that the same sound can be spelled more than one way. Taught in a planned order, it is what lets a child read a word nobody has ever read to them. What order to teach it in is its own question, and the research is clearer about having an order than about which one.

Fluency is reading smoothly and accurately, without stopping to work out every word. It is not speed for its own sake. A child still sounding out every word can be perfectly accurate and still lose the thread of the sentence, because working out the words is using up the attention the meaning needs. Fluency is what frees that attention up.

Vocabulary is knowing what words mean, and it comes mostly from talk and from being read to rather than from reading. A child can sound out a word like “vast” correctly and still not know what it means, which is why the books you read aloud can be harder than the ones your child reads alone.

Comprehension is making sense of the text as a whole, and it is the point of the other four. It needs the words to be readable and the language to be familiar, which is why it fails for more different reasons than anything else on this list.

Castles and her co-authors are explicit that the field moves “beyond phonics, reviewing research on what else children need to learn to become expert readers.” So a program that teaches only phonics is doing part of the job.

The five are a way of organizing effective teaching rather than a complete account of what reading takes, and “the big five” is a label the field added afterwards rather than the Panel’s own phrase. Vaughn and Clemens are blunt about it: the Panel did not identify a big five, and treating those five as the only five things to do leaves out spelling, writing, oral language and background knowledge.

One idea ties the five together. Gough and Tunmer called it the Simple View of Reading in 1986: understanding a book takes both working out the words and understanding the language, so a child who is weak in either one struggles. Scarborough’s Reading Rope, from 2001, is the picture many schools draw of that idea, and the name you may meet in a school newsletter.

That is the more useful way to hold the list, because the five components are jobs a teacher does and these are jobs a child has to do:

What a child has to do	What it takes
Read the words on the page	Hearing the sounds in words, letter sounds, spelling words as well as reading them, and enough practice that a word becomes instant
Understand the language	Vocabulary, sentence patterns, and already knowing something about the subject
Do both at once, without effort	Enough reading that working the words out stops using the attention the meaning needs

Spelling sits in the first row, and writing and background knowledge belong beside it. None of the three is one of the five. That is the cost of the shorter list, and it is worth knowing when you are looking at a program: five tidy modules, one per component, can be a sign that the list was read as a checklist rather than a summary.

Sight words sit inside this rather than outside it, and teaching them works from the same idea. The common words that break the spelling rules are still learned, and the letters in them that do follow the rules are what help a child remember them.

Is the science of reading the same as Orton-Gillingham?

No. The science of reading is the research; Orton-Gillingham is one way of delivering teaching that follows it. Parents meet the two names together often enough that they get used interchangeably, and they are not the same kind of thing.

Orton-Gillingham is an approach rather than a single product, dating from the 1930s: an explicit, systematic, multisensory sequence, usually taught one to one or in a small group. Several programs describe themselves as Orton-Gillingham based, and they differ from each other.

How Orton-Gillingham and the science of reading fit together

“Orton-Gillingham based” tells you where a program came from, not how good it is. The approach was built out of the things the research supports, which is a fact about its ingredients rather than evidence about any particular program that uses the name: letter sounds taught directly, in a planned order, with practice until words become automatic. An Orton-Gillingham tutor and a well-taught classroom are doing recognizably the same work at different intensities, and what to check is the same list as anywhere else.

Most parents meet the name in one place, which is where a child is already struggling. It is usually delivered one to one or in a small group, by a specialist or a tutor rather than to a whole class, so it tends to come up after a school has flagged a difficulty. If that is where you have heard it, what to do when a school says your child is behind is the more useful guide.

It is also the tradition many dyslexia specialists train in. The International Dyslexia Association describes structured literacy as what works for children with dyslexia, which is the same explicit, systematic teaching this page describes, under the name schools use when dyslexia is the reason.

What ages does the science of reading cover?

The science of reading covers every age, starting earlier than most parents expect: it describes how reading develops from a child’s first conversations onward. What it asks of a 3-year-old is still not lessons.

Treat the ages below as markers, not as what a child should have mastered. What to expect is a different question, and Is My Child on Track With Reading? is the guide for it.

• At 3 and 4: talk, read aloud and play with rhyme and with the sounds in words. Some children this age make letter-sound matches and some do not, and both are normal. Rhyming and hearing sounds matter more at this age than letter knowledge does.
• At 5, in kindergarten: systematic phonics usually begins in earnest, and blending sounds into short words is the year’s work.
• At 6, in first grade: sounding out becomes reliable and then automatic, and more spelling patterns arrive.

What are common misconceptions about the science of reading?

The biggest misconception, that the science of reading is only phonics, has a section of its own above. These are the others.

“It takes the joy out of reading.” The opposite is the point. A child who has to fight for every word does not enjoy the book, and the quickest route to a child who reads for pleasure is a child who can read without effort. Read-alouds and rich books stay, and explicit teaching of sounds can be a game that takes 3-5 minutes.

“It is one program, curriculum or approach.” It names none. No single program is the science of reading, and no single classroom method is either. It is a body of research that many different programs draw on, some of them well.

“It is a marketing push.” Part of that is fair: publishers revised their reading programs and schools buy them. The research itself is not the product. It comes out of universities and research institutions with nothing to sell, and the National Reading Panel’s report is free to read. A publisher putting the label on a box does not make the box part of the research.

“My child is a visual learner, so phonics will not suit them.” The learning-styles idea has not held up. Pashler and his colleagues reviewed the evidence and found that matching teaching to a supposed style does not improve learning, which our guide to whether reading apps work goes into further. Teach the letter-sound code to every child, whatever style they are said to have.

Can I trust the science of reading?

It is not one study. It is decades of work across psychology, linguistics, education and brain research, tested and re-tested rather than asserted once.

Researchers agree on a narrower core than the label suggests, and the line between what is settled and what is still argued over is worth seeing laid out.

The question	Where the research stands
Should a child be taught letter sounds directly, or left to notice them from reading?	Settled: taught directly. Systematic phonics beat teaching little or unsystematic phonics in the National Reading Panel’s review
When a child meets a word they do not know, should they sound it out or guess it from the picture?	Settled: sound it out. No researcher argues for teaching a child to guess, and the picture’s job is to confirm a word after it has been read
Do the five components cover all of reading?	Settled: no. Spelling, writing, oral language and background knowledge are not among the five, and a child needs them too
Is there one best order to teach the sounds in?	Not settled. Having a planned order matters more than which order it is
What share of reading instruction should be phonics?	Not settled, beyond this: it is one part of it and not most of it
Which phonics program teaches it best?	Not settled, and this is where most of the public argument actually happens

You can act on the first three. If a program claims to have settled one of the last three, it is claiming more than the research does.

How can I tell if my child’s school teaches the science of reading?

You do not need to be a reading expert to tell, and you do not need to sit in on a lesson. Most American schools are updating their reading programs, and three questions to a teacher will tell you most of what you want to know.

Instruction that matches the research looks much the same in kindergarten and first grade, and the What Works Clearinghouse practice guide is the federal summary of it:

• Letter sounds taught in a planned order.
• Practice blending sounds into words, and spelling words from their sounds.
• Reading and talk every day, which is where vocabulary and comprehension come from.

Older approaches looked different. “Look at the picture” came first when a child got stuck, lists of whole words were memorized before sounding out was taught, and books for practice were chosen by difficulty level rather than by the sounds a child had been taught. Guided reading is the name for some of this.

The three questions:

1. Which phonics program do you use, and in what order does it teach the sounds?
2. When my child gets stuck on a word, what should I prompt them to do?
3. What kind of books come home for practice?

The second question tells you the most. If the answer is to look at the picture or to guess from the sentence, that is contextual guessing.

If what you really want to know is whether your own child is where they should be, the five-minute check at home is the place to start. If the school has already said your child is behind, what to do about it is a guide of its own.

How can I apply the science of reading at home?

Three principles cover what a parent can do at home, and none of them is a program.

Keep reading aloud and talking. A daily routine that fits around a school day is worth setting up once, but the principle is simpler than any routine: this is the language half, and the half an adult does better than any product ever will.

Spend a few minutes a day on sounds. Practicing with sounds and what to do when a child knows the letter sounds but cannot blend them both go into the how. Work on hearing the sounds inside words, letter sounds and blending them together.

When your child reads to you, letters first. Prompt “look at the letters” before “look at the picture”, and let the picture confirm a word afterwards rather than supply it. Why that order matters is worth reading if guessing has already become a habit.

Your child needs two kinds of book. The ones they read alone should mostly use the sounds they have been taught, so that the words are workable. The ones you read to them can be anything at all. Free decodable books and phonics resources lists places to find the first kind.

Books built from the sounds a child has been taught are a scaffold for a beginner, and a scaffold comes down. Sharon Vaughn and Nathan Clemens are explicit that decodable books suit a child who is just starting and that their use should fade: a child who stays on books built to one spelling pattern misses the vocabulary, the sentence shapes and the knowledge that other books carry. Once your child can work a word out, widen what they read.