orton-gillingham certification

News & Updates

Slant System™ Earns IDA Accreditation PLUS

We’re excited to share an important milestone: Slant System™ Structured Literacy and Dyslexia Specialist Certification…

Karla O'BrienJanuary 27, 2026

Dyslexia Science of Reading Success Stories

How the Slant System™ Transformed Literacy Instruction: Educator Spotlight on Heidi Craemer

In partnership with Classmates Literacy Foundation “Over the past year and a half, I’ve come…

Karla O'BrienDecember 10, 2025

Reading Fluency Science of Reading

Crossing The Bridge of Reading Fluency

When I think back to my earliest years of teaching, I can still remember the…

Karla O'BrienNovember 18, 2025

Dyslexia Success Stories

Spotlight on the Dyslexia Achievement Center: Empowering Learners Across Milwaukee

We’re pleased to highlight the Dyslexia Achievement Center (DAC), a Milwaukee-area learning center dedicated to…

Karla O'BrienNovember 18, 2025

Dyslexia Teaching Tools

A Conversation With the Creator of the Slant System™

Introducing, the magnificent and brilliant Marsha Geller! Guest Blogger: Marsha Geller In collaboration with Beth…

Karla O'BrienJune 17, 2025

Teaching Tools

OG Trained vs. OG Certified: Understanding the Science and the Practice

By Karla O'Brien In today’s educational landscape, terms like “OG trained,” “Science of Reading-aligned,” and…

Karla O'BrienMay 16, 2025

Science of Reading Teaching Tools

Building Automaticity: The 3-Part Drill in Orton-Gillingham Instruction

By Karla O'Brien One of the most essential and enduring components of an Orton-Gillingham (OG)…

Karla O'BrienMay 12, 2025

Dyslexia Phonemic Awareness Teaching Tools

From A to Z: How Alphabet Arcs Boost Early Literacy

An alphabet arc is a visual representation of the alphabet in an arc shape, typically…

Karla O'BrienFebruary 11, 2025

Dyslexia News & Updates Success Stories

Success Story: My “Rock Star” Readers

"The two 4th graders in the picture are both what I’d call “rock star” readers.…

Karla O'BrienDecember 17, 2024

Dyslexia Phonemic Awareness Teaching Tools

Mastering Speech-to-Print Connections with the Sound-Spelling Choices Chart

By Stacey Masliansky, Director of Teaching and Learning The newly revised Slant System Sound-Spelling Choices…

Karla O'BrienDecember 16, 2024

What is Slant System™?

Slant System™ Course Options

Find a Slant System™ Certified Tutor

Our Story

The Orton-Gillingham Approach

Classmates Educational Group, Inc.

orton-gillingham certification

Slant System Blog