O-G Resources

This is a video of a partial OG lesson.

Typical phonemes (letter sound) and graphemes (written representation) that are taught explicitly and systematically in Orton-Gillingham (not presented in order taught, but grouped by type).

What is the difference between the O-G approach and a program based on O-G?

  • A program is a set of scripted materials and does not require in-depth knowledge, and because of this, must be followed exactly as designed.
  • Someone that is certified as an O-G professional has considerable training and can use their knowledge and training to adjust their teaching strategies to match a student’s learning style – diagnostic and prescriptive.
Comparison of Structured Language Programs

The organizations listed below have been accredited by the International Dyslexia Association for meeting the Knowledge and Practice Standards for Teachers of Reading in Structured Literacy.  “The term “Structured Literacy” is not designed to replace Orton Gillingham, Multi-Sensory or other terms in common use. It is an umbrella term designed to describe all of the programs that teach reading in essentially the same way.”  There are 2 paths to receiving training in Structured Literacy:  1.) through university programs accredited by the IDA, and 2.) through independent organizations accredited by the IDA.  Highlighted below are the major independent organizations. 


Overview of the agencies that certify/train those in MSLE instruction:

Academy of Orton-Gillingham Practitioners and Educators (AOGPE)

  • The only organization expressly established and authorized to set standards for the practice of the Orton-Gillingham Approach, to certify teachers, and to accredit instructional programs that meet these standards.
  • Contact them for a list of certified tutors in your area.
  • Orton-Gillingham Introductory Online Course
    • This 10-hour online course was developed by the Fellows of the Academy to help teachers, parents, tutors, and other education professionals understand and recognize dyslexia.
  • Levels of Certification
  • Required Reading Lists

Academic Language Therapy Association® (ALTA®)

The Alliance for Accreditation and Certification of Structured Language Education, Inc. (The Alliance)

  • Consists of IMSLEC and ALTA members

International Multisensory Structured Language Education Council (IMSLEC)

  • Certifies the organizations that train teachers to become ALTA certified.

Orton Gillingham International (OGI)


Reference:  What is Orton-Gillingham?