What Orton-Gillingham is
Orton-Gillingham is not a program you can buy. It is an approach, a set of principles for teaching reading, and it is the foundation nearly every evidence based dyslexia program is built on.
It grew out of the work of Samuel Orton, a neurologist studying reading difficulty in the early twentieth century, and Anna Gillingham, an educator and psychologist who turned his observations into a teaching method. The approach predates the modern research on phonological processing by decades and has largely been confirmed by it.
Because the name is not a single trademarked product, the quality of what is offered under it varies enormously. Two providers can both say Orton-Gillingham and be doing quite different things. That is why the principles below matter more than the label.
The defining principles
These are the properties that make instruction genuinely Orton-Gillingham. If several are missing, the label is decorative.
- Explicit Every concept is taught directly and stated out loud. Nothing important is left to be inferred.
- Systematic and cumulative A planned sequence from simple to complex, with earlier material continuously revisited.
- Multisensory Visual, auditory and kinesthetic channels used together. A student sees the letter, says the sound and writes it in one linked action.
- Diagnostic and prescriptive The therapist assesses continuously and adjusts the next lesson based on what happened in this one.
- Synthetic and analytic Students learn both to build words from parts and to break words down into them.
- Emotionally sound Lessons are structured so the student experiences success rather than repeated failure, because motivation is part of the method rather than a nice extra.
Inside a lesson
A well run session follows a consistent structure. The predictability itself is therapeutic, because a student who knows what is coming spends less energy bracing for it.
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Sound review
Rapid drill of previously taught letters and sounds, both seeing the letter and saying the sound, and hearing the sound and writing the letter.
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New concept
One new element introduced explicitly, with the student discovering the pattern through guided examples before it is named.
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Word level practice
Reading and spelling words containing the new pattern, including nonsense words so decoding cannot be bypassed by memory.
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Connected text
Reading sentences and passages controlled so they use only patterns already taught. Success here is by design, not by luck.
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Written expression
Dictation and composition applying the same patterns, because spelling and writing consolidate reading rather than sitting beside it.
Programs built on the approach
Several published curricula implement Orton-Gillingham principles with varying structure and training requirements. You will meet these names in North Texas schools.
- Take Flight. Developed in Texas at the Luke Waites Center for Dyslexia and Learning Disorders. Widely used in Texas public schools and designed to be delivered by a trained therapist.
- Alphabetic Phonics. An earlier Texas developed curriculum in the same lineage, and the basis for several later programs.
- Wilson Reading System. Highly structured, with its own certification pathway, common for older students.
- Barton Reading and Spelling. Designed to be delivered by tutors and trained parents, with scripted lessons.
- Slingerland. A classroom adaptation of the approach, used for whole group instruction.
No single one of these is best in the abstract. What matters far more is whether it is delivered with fidelity, often enough, by somebody trained in it.
Verifying the claim
Because anyone can print Orton-Gillingham on a flyer, verify it with questions rather than accepting the term.
- Which specific curriculum do you use? A named program is checkable.
- What training did you complete in it, and how many supervised hours? Supervised practicum hours are the difference between a weekend workshop and a qualification.
- May I see the scope and sequence? A structured program has one on paper.
- How do you decide what comes next? You want to hear about data from the last session, not about a fixed schedule.
- How is progress measured and reported to me? Ask for the measure and the interval.
Academic Language Therapy covers the providers with the deepest training in these methods, and what their credentials mean.
