What Is the Orton-Gillingham Approach?
If you've been researching reading intervention for dyslexia, you've probably come across the term Orton-Gillingham (often called OG). But what exactly is it, and why has it remained one of the most trusted approaches to reading instruction for nearly a century?
The Orton-Gillingham approach is a structured, evidence-based method of teaching reading, spelling, and writing. Originally developed by neurologist Dr. Samuel Orton and educator Anna Gillingham, it was designed to help students who struggle with language processing, including those with dyslexia.
Today, Orton-Gillingham principles form the foundation of many successful literacy programs and are widely used by dyslexia specialists, reading interventionists, and structured literacy practitioners.
Why Orton-Gillingham Works
Many children learn to read naturally through exposure and practice. Others need direct instruction that clearly explains how written language works. The Orton-Gillingham approach removes the guesswork by teaching the structure of the English language in a systematic and logical way.
Rather than asking students to memorize words, OG teaches them how sounds, letters, spelling patterns, syllable types, and word structures work together. This knowledge allows students to decode unfamiliar words independently and become more confident readers.
Key Features of Orton-Gillingham Instruction
Multisensory Learning
One of the most recognized features of Orton-Gillingham instruction is its multisensory approach.
Students learn using multiple pathways at the same time:
Visual (seeing)
Auditory (hearing)
Kinesthetic/Tactile (moving and touching)
For example, a student may say a sound aloud while tracing a letter and looking at it simultaneously. Engaging multiple senses strengthens memory and improves retention.
Explicit and Direct Instruction
OG lessons do not assume students will discover reading patterns on their own.
Skills are taught directly and clearly. Teachers explain concepts, model them, provide guided practice, and ensure students understand before moving forward. This reduces confusion and builds confidence.
Sequential and Systematic
Reading skills are taught in a carefully planned order.
Students begin with foundational concepts and gradually move toward more advanced skills. Each new lesson builds upon previously learned material, creating strong connections and preventing learning gaps.
Cumulative Review
Children need repeated practice to develop mastery.
In Orton-Gillingham instruction, previously taught skills are reviewed regularly so that learning becomes automatic and long-lasting. Review is built into lessons rather than treated as an afterthought.
Individualized Instruction
Every student learns at a different pace.
Orton-Gillingham instruction is flexible and responsive to individual needs. Teachers adjust the pace, provide additional practice when necessary, and build lessons around each student's strengths and challenges.
A commonly quoted principle is:
"Go as fast as you can, but as slow as you must."
This individualized approach helps students experience success while maintaining steady progress.
Phonics and Language Structure
Orton-Gillingham instruction emphasizes the structure of the English language.
Students learn:
Sound-symbol relationships
Phonograms
Syllable types
Spelling rules
Morphology (prefixes, suffixes, and word roots)
Understanding why words are spelled the way they are helps students become stronger readers and spellers.
Is Orton-Gillingham Only for Students with Dyslexia?
While Orton-Gillingham was originally developed for students with dyslexia, many other learners benefit from its structured approach, including:
Students with reading delays
Students with spelling difficulties
English language learners
Students who need additional support with literacy skills
Beginning readers
The explicit and systematic nature of OG instruction makes it effective for a wide range of learners.
What Does an Orton-Gillingham Lesson Look Like?
A typical lesson may include:
Phonogram review
Reading and spelling practice
Decoding strategies
Syllable instruction
Dictation of sounds, words, phrases, and sentences
Reading connected text
Review of previously taught concepts
Lessons are carefully structured while remaining flexible enough to meet the needs of the individual student.
The Bottom Line
Learning to read should not be a guessing game.
The Orton-Gillingham approach provides students with a clear roadmap for understanding how language works. Through explicit, systematic, multisensory instruction, students develop the skills and confidence needed to become successful readers and writers.
For children with dyslexia and other reading challenges, Orton-Gillingham instruction can be transformative—helping them move from frustration and uncertainty to confidence and independence.
