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"Thank you for a wonderful class!  I wish this course were required for all teachers and a part of teacher preparation courses.  I will be encouraging as many colleagues as I can to try and get into your class.  I have learned an abundant amount of valuable strategies that will benefit me, my colleagues and my students for a very long time. I have already been using what I have learned in my second grade classroom and am seeing results. I can’t wait to do summer school with grades 1-3 so that I can reach more students who need these approaches.  I feel encouraged that we can finally begin to close some gaps and not just watch the gap increase by doing the same things more slowly over and over but instead use systematic OG approaches that will in fact truly help our students close their gaps in learning and become more confident in their abilities. " 

- Erika Clark, teacher

Multisensory Mathematics I Online 

Fulfills one course requirement for Teaching Level Certification

Based on the Orton-Gillingham philosophy of teaching, Marilyn Zecher's Multisensory Mathematic 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.

Watch a sample lesson from Marilyn Zecher's Multisensory training

Participants receive Math Manual that includes teacher re-producible masters as well as a starter kit of math manipulatives.

Next Course
April 12-July 7, 2019

Participants have unlimited access to the 30 hour Math 1 Lecture series, materials and the community blog.
Participants will meet online with instructors for two onlnie sessions.  Dates TBD.  We offer a range of dates to select for these meetings, dates will be determined the first week of class.

There is no set time that you must be signed in except during the online sessions with the instructor.

Cost: $875.00, which includes Shipping and Handling costs for course manual and Manipulatives starter kit.
Discount prices available for schools that register 6 or more teachers. 

Participants receive Math Manual a few days prior to the start of class that includes teacher re-producible masters as well as a starter kit of math manipulatives. 

Online Access to the class videos and materials will be available on the first day of class. We will send you an email with course login information one day prior to the start of class.

Graduate Credit
Graduate Credit From Trinity University is available for an additional fee. Please complete this  form along with payment and submit it to [email protected] by the first day of the course.

Course requirements for Credit

Register now

ASDEC - Dyslexia Therapy, Training, and Parent Advocacy

17 West Jefferson Street, Suite 201
Rockville, MD 20850

Phone: 301-762-2414
Email: [email protected]

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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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