If you have ever wondered why some children pick up reading with ease while others struggle year after year, the science of reading holds the answer. Decades of research from cognitive scientists, linguists, and reading specialists have given us a clear picture of how the brain learns to read and which teaching methods work best.
Try a free Orton-Gillingham introductory course to see how structured literacy puts the science of reading into practice.
This guide breaks down what the science of reading actually means, walks through its two most important models (the Simple View of Reading and Scarborough’s Reading Rope), and explains why schools across the country are moving away from balanced literacy and toward structured, evidence-based instruction.
What Is the Science of Reading?
The science of reading is a large body of research, built over more than five decades, that explains how people learn to read and write. It draws on work from cognitive psychology, neuroscience, linguistics, education, and communication sciences. According to The Reading League, this research “has culminated in a preponderance of evidence to inform how proficient reading and writing develop; why some have difficulty; and how we can most effectively assess and teach.”
A few points worth knowing:
- The research spans thousands of studies conducted in multiple languages around the world.
- It is not a single program, curriculum, or teaching method. It is the evidence base that should inform all of those things.
- It tells us that reading is not a natural process. Unlike spoken language, which children acquire through exposure, reading must be taught through direct, explicit instruction.
When educators talk about “following the science of reading,” they mean grounding their instruction in what this body of research has confirmed works, rather than relying on tradition, intuition, or outdated theories about how children learn to read.
Why Does the Science of Reading Matter for Teachers and Parents?
Research from the National Assessment of Educational Progress (NAEP) shows that roughly two out of three fourth graders in the United States read below proficiency. That number has remained stubbornly consistent for decades. The science of reading matters because it points to a clear reason for the gap: many classrooms still use instructional approaches that lack scientific support.
For teachers, understanding the science of reading means being able to:
- Choose curriculum and methods backed by evidence rather than publishing trends
- Identify students who are at risk for reading difficulties before they fall behind
- Provide targeted intervention that addresses the root cause of a student’s struggle
For parents, the science of reading provides a framework for evaluating the instruction their child receives. It helps parents ask the right questions at school conferences, select supplemental programs that work, and support reading development at home with strategies that research has validated.
Read our Science of Reading guide written specifically for parents to learn how to support your child’s reading growth at home.
The Simple View of Reading: A Starting Point
One of the most widely cited models from the science of reading is the Simple View of Reading, developed by Gough and Tunmer in 1986. It uses a straightforward formula:
Decoding (D) x Language Comprehension (LC) = Reading Comprehension (RC)
The multiplication sign matters. If either decoding or language comprehension is zero, reading comprehension will be zero, no matter how strong the other skill is. A child who can decode words fluently but does not understand the vocabulary or sentence structures will struggle to comprehend text. A child with a rich vocabulary and strong listening comprehension but poor decoding skills will be unable to access the words on the page.
The Simple View helps teachers and parents understand that reading difficulties can stem from different sources. Some students need phonics-based decoding instruction. Others need vocabulary and language development. Many need both. The model makes it easier to pinpoint where a student’s reading breakdown is happening and target instruction accordingly.
Scarborough’s Reading Rope: A Closer Look at the Skills Involved
While the Simple View gives us a useful formula, Scarborough’s Reading Rope (developed by Hollis Scarborough in 2001) offers a more detailed map of the skills that weave together to produce skilled reading. The model visualizes reading as a rope made of multiple strands, each representing a different skill. The strands become more tightly woven as a reader gains proficiency.
The Language Comprehension Strands
Five strands make up the upper portion of the rope:
- Background Knowledge: The information and understanding a student brings to a text from prior experiences, conversations, and reading. Students with relevant background knowledge comprehend text more effectively.
- Vocabulary: Knowing the meaning of words, including depth of understanding and how words connect to one another. Vocabulary weaknesses are one of the strongest predictors of later reading comprehension difficulties.
- Language Structures: Understanding syntax (how words are arranged in sentences) and semantics (what those arrangements mean). Students must parse the relationships among words in a sentence to extract meaning.
- Verbal Reasoning: The ability to make inferences, draw conclusions, understand figurative language, and analyze what is read.
- Literacy Knowledge: Familiarity with text structures, genres, and print concepts, from knowing how to hold a book to recognizing the organizational patterns of informational text.
The Word Recognition Strands
Three strands make up the lower portion of the rope:
- Phonological Awareness: Understanding that spoken words are made up of individual sounds (phonemes). This skill allows students to blend sounds together to read words and segment words to spell them.
- Decoding: Using knowledge of letter-sound relationships, syllable patterns, and morphology to read unfamiliar words. Decoding is strengthened when students practice encoding (spelling) the same words.
- Sight Recognition: The ability to recognize words instantly without sounding them out. This develops through repeated, successful decoding, not through memorizing word shapes.
The rope metaphor communicates something important: these skills are interconnected. They develop best when taught together rather than in isolation. A lesson that builds background knowledge while also teaching relevant vocabulary and phonics patterns will produce stronger readers than one that treats each skill as a separate checkbox.
Explore the 5 Components of Reading for a deeper look at how these skills connect in the classroom.
How Did the Science of Reading Change Classroom Instruction?
For much of the late 20th century, the dominant approach to reading instruction in American schools was balanced literacy. Under this model, teachers surrounded students with books, encouraged “cueing” strategies (using pictures, context clues, and first-letter guesses to identify unknown words), and minimized explicit phonics instruction. The idea was that children would learn to read much the way they learned to speak: through immersion and exposure.
The science of reading challenged this approach on several fronts:
- Cueing is not how skilled readers process words. Eye-tracking and brain imaging research showed that proficient readers process every letter in a word. They do not skip words or guess from context. Teaching children to guess undermines the decoding pathways their brains need to build.
- Immersion alone is not sufficient. The National Reading Panel report (2000) reviewed thousands of studies and concluded that systematic, explicit phonics instruction produces significantly better reading outcomes than approaches that teach phonics incidentally or not at all.
- Predictable text does not build decoding skills. Books with repetitive sentence patterns (“I see a dog. I see a cat.”) teach memorization, not reading. Decodable texts, which use phonics patterns the student has already learned, build genuine word-reading ability.
This shift, sometimes called the “reading wars,” has led more than 40 states to pass legislation requiring evidence-based reading instruction. Schools are replacing balanced literacy programs with structured literacy, an approach built directly on the science of reading.
What Is Structured Literacy and How Does It Connect to the Science of Reading?
Structured literacy is the instructional approach that puts the science of reading into practice. The International Dyslexia Association defines structured literacy by its content (what is taught) and its principles (how it is taught).
Content areas include:
- Phonology (the sound system of language)
- Sound-symbol association (connecting sounds to letters and letter patterns)
- Syllable instruction (recognizing and reading syllable types)
- Morphology (prefixes, suffixes, roots, and how they change word meaning)
- Syntax (sentence structure and grammar)
- Semantics (meaning at the word and text level)
Instructional principles include:
- Explicit: Skills are taught directly. The teacher models, explains, and demonstrates rather than expecting students to discover patterns on their own.
- Systematic and cumulative: Concepts are taught in a logical order, building from simple to complex, and each new lesson reviews what came before.
- Diagnostic: Teachers continually assess student understanding and adjust instruction based on what each student needs.
- Multisensory: Lessons engage visual, auditory, and kinesthetic pathways simultaneously, which strengthens memory and learning.
The Orton-Gillingham approach is one of the oldest and most well-known structured literacy methods. Developed in the 1930s by Dr. Samuel Orton and educator Anna Gillingham, it laid the foundation for many of the structured literacy programs used in classrooms and intervention settings today.
What Does the Research Say About Structured Literacy Results?
The evidence base supporting structured literacy is large and consistent. Key findings include:
- A meta-analysis published in the Journal of Educational Psychology found that systematic phonics instruction improved reading outcomes across age groups, ability levels, and socioeconomic backgrounds.
- The National Reading Panel identified five pillars of effective reading instruction: phonemic awareness, phonics, fluency, vocabulary, and comprehension. Structured literacy addresses all five through a coordinated scope and sequence.
- Research on students with dyslexia consistently shows that structured, multisensory intervention produces significant gains in decoding accuracy, reading fluency, and spelling. The Orton-Gillingham approach and programs based on its principles have the strongest track record in this area.
Structured literacy is not only for students with reading difficulties. Research confirms that explicit, systematic instruction benefits all students, including those learning English as a second language, students in under-resourced schools, and students without any identified learning challenges.
Learn how the science of reading and structured literacy compare to understand where the research ends and the teaching begins.
How Can You Apply the Science of Reading at Home or in the Classroom?
Putting the science of reading into action does not require advanced training. Here are practical steps teachers and parents can take right away:
For Teachers
- Audit your phonics instruction. Is it systematic and explicit? Does it follow a clear scope and sequence, or are phonics skills taught as they come up in reading? A structured scope and sequence matters.
- Replace predictable readers with decodable texts. Decodable books use only the phonics patterns students have already been taught, giving them genuine practice applying what they have learned.
- Teach phonemic awareness directly. Blending, segmenting, and manipulating sounds in spoken words is the foundation for decoding. Spend 10 to 15 minutes daily on phonemic awareness, especially in grades K through 2.
- Build vocabulary and background knowledge intentionally. Read aloud from rich, complex texts. Discuss word meanings. Connect new topics to what students already know.
- Use assessment data to guide instruction. Screening tools can identify students who need additional support before they fall significantly behind.
For Parents
- Read aloud every day. Even after your child can read independently, reading aloud builds vocabulary, background knowledge, and a love of books.
- When your child gets stuck on a word, point to the letters. Encourage sounding out rather than guessing from pictures or context.
- Ask your child’s school about their reading curriculum. Is it aligned with the science of reading? Does it include systematic phonics? These are fair and important questions.
- Choose programs that teach phonics explicitly. If your child needs extra support, look for Orton-Gillingham-based programs that follow a structured, multisensory approach.
Browse 15 science of reading activities you can use in your classroom or at home this week.
Frequently Asked Questions
What are the 5 components of the science of reading?
The five components, identified by the National Reading Panel, are phonemic awareness, phonics, fluency, vocabulary, and reading comprehension. Effective reading instruction addresses all five areas through explicit, systematic teaching rather than relying on any single component in isolation.
What is the difference between phonics and the science of reading?
Phonics is one part of the science of reading, not the whole thing. Phonics teaches the relationship between letters and sounds. The science of reading is a broader body of research that also covers vocabulary development, language comprehension, fluency, and how the brain processes written text. Effective reading instruction, informed by the full science of reading, goes beyond phonics alone.
Is the science of reading only for students with dyslexia?
No. While structured literacy (the instructional approach based on the science of reading) was originally developed for students with dyslexia, research shows it benefits all learners. Explicit, systematic instruction helps every student build stronger decoding skills, larger vocabularies, and better reading comprehension.
How is the science of reading different from balanced literacy?
Balanced literacy encourages students to use context clues, picture cues, and guessing strategies to identify words. The science of reading shows that skilled readers process every letter in a word and that guessing strategies can actually hinder reading development. Structured literacy, based on the science of reading, teaches phonics and decoding explicitly and systematically.
Where to Go from Here
The science of reading gives teachers and parents a research-backed roadmap for helping every child become a confident, skilled reader. Whether you are a classroom teacher looking to strengthen your phonics instruction or a parent trying to understand why your child is struggling, the evidence is clear: explicit, systematic, structured literacy instruction works.
PRIDE Reading Program is built on Orton-Gillingham principles and aligned with the science of reading. The fully scripted lessons make it possible for teachers, tutors, and parents to deliver evidence-based instruction with confidence, without requiring years of specialized training.
Explore PRIDE Reading Program’s structured literacy curriculum and see how the science of reading comes to life in every lesson.