Effectiveness of the Orton-Gillingham Approach: A Research-Based Program

 

In our previous blog, we explored various categories of students with Additional Learning Needs, including Specific Learning Disabilities (SLD).

According to the DSM-5, a Specific Learning Disorder is a neurodevelopmental condition with a biological basis that leads to cognitive difficulties associated with specific behavioral signs. Students with SLD experience persistent challenges in acquiring academic skills in areas such as reading, writing, and mathematics.

Among these, Dyslexia is characterized by difficulties in reading, Dysgraphia by writing challenges, and Dyscalculia by challenges in mathematics.



This blog delves into the obstacles faced by students with dyslexia and our evidence-based intervention rooted in the Orton-Gillingham (OG) Approach.


Understanding Dyslexia

Dyslexia is commonly defined as difficulty with mastering the fundamental elements of the language system despite adequate classroom instruction. The signs of dyslexia can vary widely among individuals and may evolve over time. Generally, students with dyslexia experience difficulties in:

  • Decoding: Sounding out words

  • Encoding: Spelling words

  • Fluency: Reading at an appropriate pace with minimal errors

A primary indicator of dyslexia in the school setting is difficulty with phonemic awareness, such as sounding out letters and blending sounds. Even in early grades, some students may show signs of dyslexia, including:

  • Difficulty mastering letter-sound associations at the same rate as peers

  • A lack of enthusiasm for learning about letters and sounds

  • Confusing visually similar letters

  • Limited progress despite repeated practice with letters and sounds

 

Older students may experience additional struggles such as:

  • Omission of letters or words when reading

  • Transposition of letters in words

  • Confusion between letters like /b/ and /d/, /g/ and /j/, /m/ and /n/, /w/ and /v/

  • Slow and laborious reading with frequent errors in spelling, particularly with non-phonetic words

  • Minimal use of punctuation or spacing between words in written sentences

  • Copying words letter-by-letter instead of as complete words

Intervention: The Orton-Gillingham Approach

There are several effective programs for addressing reading difficulties, including the Orton-Gillingham Approach, the Barton Reading System, and the Wilson Reading System. At Mayoor Private School, we implement the Orton-Gillingham (OG) Approach, a direct, explicit, multisensory, structured, sequential, diagnostic, and prescriptive method to teach literacy skills in reading, writing, and spelling. This approach is taught through a one-on-one inclusion model where the teacher tailors instruction to the student's unique needs.

The OG approach engages multiple senses, allowing students to connect with language concepts through sight, sound, touch, and movement. Students with dyslexia require a deeper understanding of language structure than their peers and must be taught explicitly and systematically to reach the same core understanding










All Inclusion Teachers at Mayoor Private School are trained in the OG approach and have successfully applied this program over the past three years, creating individualized lessons based on each student’s level and pacing instruction to suit their strengths and challenges.

Success Rates with the Orton-Gillingham Approach

Among the students recorded in our Inclusion register, 30% have been identified as having Specific Learning Disabilities. When initially referred by their class teachers, these students typically struggled in decoding, encoding, and fluency. Their progress through OG intervention varies according to the severity of their dyslexia. For example:

  • Some students, whose dyslexia is more severe (above 70%), may require extended support.

  • Others, with moderate dyslexia (around 40-50%), may begin reading independently after six months of targeted intervention.

Progress rates differ among students, but all have shown improvement from their starting points, and parents are thrilled to see their children developing essential reading skills.

Conclusion

The Orton-Gillingham Approach remains one of the most effective research-based methods for helping students with dyslexia and other reading difficulties achieve literacy. Its structured, individualized approach has allowed students to overcome significant obstacles in reading, writing, and spelling, empowering them to make meaningful progress.


For more information on the Orton-Gillingham approach and its principles, please visit:



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