ASDEC Multisensory Mathematics


Multisensory Math 1 online: Winter

"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

Based on the Orton-Gillingham philosophy of teaching, Marilyn Zecher's Multisensory Mathematics I applies the research-based Concrete-Representation-Abstract (CRA) approach to teaching mathematics and recommendations of  the What Works Clearinghouse and the National Council of Teachers of Mathematics. Participants learn to apply this methodology in guiding students from foundation skills and numeracy to place value, basic operations, fractions and decimals. Links to pre-algebra and algebra are also included.  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 for teachers who work 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.

Participants should expect to invest approximately 3-4 hours per week to complete the video viewing requirements, the readings and assignments. The course includes over 30 hours of instructional videos, two face to face video conferences and a lesson plan project for those seeking ASDEC credit. There is a completion certificate with fewer assignments for those who only wish to take the course for their own edification. Those seeking graduate credit through Trinity University have one additional project which enhances their own teaching skills.

Watch a sample lesson from Marilyn Zecher's Multisensory training

Click here for a list of course requirements.

Next Course
January 11 - April 6, 2020 
Participants will meet online with Instructor for two 90 minute sessions, evening and weekend schedules are available. Dates TBD after the start 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.
Register now


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.  

Contact us at [email protected]

ASDEC - Dyslexia Therapy, Training, and Parent Advocacy

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Rockville, MD 20850

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

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