An Engaging- Interactive- Successful - Math Guide for Teachers, Parents and Literacy Practitioners Based on the Orton-Gillingham Approach to Literacy Instruction Understanding and Teaching OG Academic Math: For some students, mathematics is a road travelled in small steps. A successful multi-sensory approach leads the student through small increments of understanding toward unifying themes in mathematics. Student’s strengths and needs must be recognized and addressed with built-in “checks for error,” as well as a built-in system for building confidence and competence. The OG interactive, cognitive approach for learning math enables students to develop more effective ways of thinking about math and applying new skills. OG Academic Math Handbooks, Training Courses and Workshops are designed to provide teachers, instructional support staff, Orton-Gillingham practitioners and parents with hands-on, interactive math training.