News: Multisensory Math Online Registration now open

Multisensory Math 1 Online:  Next Course: Fall 2017

Based on the Orton-Gillingham philosophy of teaching, Multisensory Mathematics I applies the research-based Concrete-Representation-Abstract (CRA) approach to teaching mathematics as advocated by the National Math Panel and the NCTM. Participants learn to apply this methodology in guiding students from foundation skills and numeracy to place value, operations, fractions and decimals. Participants learn to use manipulatives effectively to reinforce concepts, aid memory and enhance performance for all students. Strategies for helping students learn and retrieve math facts are stressed as well as structured procedures for computational accuracy. This approach is especially effective with students who learn differently, inclusion classes and ESL learners. The approach is effective for initial instruction as well as remedial work at all levels and is compatible with all curricula and programs.


"The support, the resources, the collegiality are all wonderful. I have found my niche.”  - Merida Hurkett, ASDEC Clinical Director
The Atlantic Seaboard Dyslexia Education Center is a private, non-profit 501(c)(3) accredited by the International Multisensory Structured Languages Education Council (IMSLEC). Established in 2000, ASDEC's foundation is based on more than three decades of educational experience serving students with language-based learning disabilities. ASDEC's graduate-level training in structured multisensory language instruction enables teachers, tutors, parents and other educators to teach success to students with even the most severe learning disabilities.

Our Vision

ASDEC will become the regional leader for training, support, and advocacy of evidence-based multisensory teaching strategies essential for individuals who are dyslexic or have learning differences.

Our Mission

As a nationally accredited professional development center, ASDEC trains and certifies Academic Therapists and educates teachers, tutors, parents, and school leaders in effective methods to help individuals who are dyslexic or have other learning differences. Through our efforts, we enable individuals to achieve success, to acquire increased confidence in their talents, and to realize their full potential.

How We Accomplish this Mission


We train, certify and support Academic Therapists to deliver evidence-based multisensory instruction in reading, spelling, written language, mathematics, and study skills to students who are dyslexic or have other learning differences.

We adapt and tailor existing methodologies, and develop new ones, to teach individuals who are dyslexic or have other learning differences.

We train teachers to deliver effective multisensory educational strategies.

We provide ongoing professional development to Academic Therapists, teachers and other educational leaders in evidence-based multisensory teaching strategies.


We provide phone consultations and conduct parent seminars and information sessions.

We provide referrals for students and adults who need intensive, individualized instruction.

We provide direct instructional services to children who are dyslexic or have other learning differences.

We provide classes to help adults who are dyslexic or have other learning differences.


We raise public awareness about the need to identify and remediate dyslexia and other learning differences with the most effective evidence-based multisensory techniques.

Atlantic Seaboard Dyslexia Education Center
22 West Jefferson Street, Suite 307, Rockville, MD 20850
Phone: 301.762.2414

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