Orton-Gillingham for Parents: What It Is and What to Expect

What Orton-Gillingham actually is

OG is an approach to teaching reading, not a single brand or boxed program. It was developed in the 1930s by Samuel Orton, a neurologist, and Anna Gillingham, an educator, who studied why some bright children struggled to read and built instruction around how the reading brain works.

Because it is an approach, you will see it delivered through different programs and materials — what they share is a set of principles, not a logo. (Edition 4)

The core principles

These are the features that make instruction "Orton-Gillingham," and they are also what the research supports for struggling readers:

• Explicit. The teacher directly explains the letter-sound relationships; nothing is left to discovery.
• Systematic and cumulative. Skills are taught in a logical order, and each lesson builds on the last.
• Multisensory. Seeing, saying, hearing, and writing are linked, so multiple parts of the brain build the reading circuit.
• Diagnostic. The teacher watches closely and adjusts to the individual child rather than marching through a fixed script.

What a session looks like

Sessions are usually short and tightly structured, often one-to-one or in a very small group. A typical lesson blends:

• A quick review of sounds and patterns already taught.
• A new sound or spelling rule, explained explicitly.
• Blending and word-building practice (m-a-t → "mat").
• Reading and spelling words and sentences that use the new pattern.
• Reading connected text that stays within the known code.

Consistency matters more than drama. Progress often comes from many calm, well-sequenced repetitions rather than any single breakthrough moment. (Edition 11)

OG, structured literacy, and the science of reading

You may hear all three terms in the same conversation. They relate like this: the science of reading is the research base; structured literacy is the instructional approach that applies it; and Orton-Gillingham is one of the original, well-known structured-literacy approaches.

So when a school says it uses "structured literacy" or "OG-based" instruction, it usually means explicit, systematic, multisensory teaching rooted in the same principles. The important question is not the label — it is whether the instruction your child receives actually has those features. (Edition 12)

Questions to ask a tutor or program

• Is the instruction explicit and systematic, with a defined scope and sequence?
• Is it one-to-one or small group, and how often? (Frequency and intensity matter.)
• How is my child's progress measured, and how will you show it to me?
• What training and certification does the instructor hold?
• What does a typical session include, and how much practice happens between sessions?

You are not interrogating anyone. A confident, well-trained instructor will welcome these questions.

What progress looks like

Real progress is usually gradual and measurable: sounds become automatic, spelling gets more predictable, reading gets smoother, and confidence grows. Expect weeks, not days, and ask for the data along the way.

OG is not magic, and it is not a cure. It is careful, well-structured teaching that fits how reading is built. For many children with dyslexia, that is exactly what makes the difference. (Edition 27)