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About ASDEC


“As a middle school reading specialist, I was voted "Teacher of the Year" in Maryland, but it was not until I completed the Sounds In Syllables course that I can now proudly state that I am a specialist in reading”.

– Jennifer Galvez, Academic Therapist

Researchers estimate that 10-15% of the U.S. population is dyslexic;
yet only five of every 100 receive some form of intervention.

Dyslexia, simply put, means trouble with written language, with reading (decoding and comprehension), spelling, and writing. Dyslexia may also mean trouble with any, or a combination of several of the following:

    •    Grasping and remembering what one hears (receptive language)
    •    Using words to say what one wants to say (expressive language)
    •    Difficulty with abstract words and ideas
    •    Difficulty with memory and recall
    •    Poor memory for basic arithmetic facts
    •    Handwriting may be poor, chiefly from poor instruction

Brain research studies have shown that dyslexic individuals use different areas of the brain to process information; therefore, they may process information less efficiently, more slowly, and use more energy to do so.

Dyslexia is not an abnormality; it is not a disease or a condition that should be 'cured'. Dyslexia is a normal variation in human development. It brings with it skills, gifts, and talents critical to our society. The schools and agencies listed here provide excellent information about identifying and treating individuals with learning disabilities.


What does ASDEC do




Our History

In 2000, Claire Nissenbaum, F/AOGP. M.A., CAT founded ASDEC to help dyslexic children and adults overcome potentially life-long barriers to learning. Along with the clinical psychologist Betty Levinson, with whom she had partnered since 1974, Ms. Nissenbaum developed the only training center in the Washington, DC region that offers IMSLEC accreditedIDA endorsed evidence-based structured, multisensory techniques in language skills (decoding, fluency, spelling, writing, vocabulary, and comprehension), math.

Our Vision & Mission

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

ASDEC News & Updates


ASDEC Winter Courses and Workshops

ASDEC offers the only IMSLEC accredited IDA endorsed professional development in the DC region. Our online courses reach educators all over the world.  Join our growing community of multisensory specialists this winter!

ASDEC Academic Therapists 

Interested in Becoming an Academic Therapist?

Join us for 2020 information sessions:

January 14 from 10:30-12:00 at our ASDEC office in Rockville.

January 16 from 10:30-12:00 live online through Zoom

Sessions will also take place in Virginia. dates TBD

Please contact us to learn more .




New ASDEC Training for Parents and Teachers

ASDEC is pleased to present K-Reading KickStart Program, developed by Mona Iyer, AMS, CALT, CDT.  Ms. Iyer is an early childhood reading specialist with over 25 years teaching highly successful strategies for reading, writing, handwriting, and spelling.

K-Reading KickStart integrates foundational Orton-Gillingham methods with highly effective Montessori strategies for multi-sensory learning. 

Next Course: Summer 2020


ASDEC - Dyslexia Therapy, Training, and Parent Advocacy

17 West Jefferson Street, Suite 201
Rockville, MD 20850

Phone: 301-762-2414
Email: questions@asdec.org

Copyright ©2019. ASDEC All rights reserved.


ASDEC is accredited by the International Mulitsensory Structured Language Education Council (IMSLEC), one of two organizations in the US to receive the International Dyslexia Association (IDA) endorsement for meeting teacher training standards in reading.


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