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Dyscalculia and Definitions of Learning Disabilities

DSM-V:  Specific Learning Disorders (SLDs) are defined in The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), published by the American Psychiatric Association. SLD is defined as a "Specific Learning Disorder-- with impairment in Mathematics (315.1), Reading (315.0), or Written Expression (315.2). SLD is "a neurodevelopmental disorder of biological origin manifested in learning difficulties and problems in acquiring academic skills markedly below age level and manifested in the early school years, lasting for at least 6 months, not attributed to intellectual disabilities, developmental disorders, or neurological or motor disorders." 

What is it like to have Dyscalculia?

You're copying, "15.17 " saying it aloud,  "fifteen seventeen,"  but you write,  "15.70".   It sounds almost identical.

You're copying, "264.69" saying aloud,  "two sixty-four sixty-nine,"  but you write,  "369.49"  
Sixty sounds like 3
You preserved the idea of 3 suggested by "sixty" and unconsciouly wrote, " 369.49".
You recalled a 4 and remembered the pattern of ending with 9.
Read this new article (Jan. 8,  2018), Smart Thick Kid- Living with Dyscalculia.

Do you have a learning disability?

           (1)  Complete The Dyscalculia Checklist
           (2)  Complete The Learning Disabilities Checklist
           (3)  Need a professional diagnosis?   Get tested for Dyscalculia and LDs.
           (4) Watch a video on Dyscalculia Signs and Research

29% of American 15-year-olds are Incompetent in Math, only 6% are Competent

⚠ In 2015, 29% of 15-year-olds in the United States of America, scored deficient (in the lowest 10%) on international tests of mathematical literacy- that's 3 in every 10 students below proficiency Level 2- worse than half (35) of the 69 countries tested. Only 6%, scored above 90% proficiency (Level 5), worse than 36 countries. Source: NCES, 2016, p.23.

Two Free College Courses via Coursera to Improve Your Math Ability

(1) Introduction to Mathematical Thinking by Dr. Keith Devlin at Stanford University 

(2) Learning How to Learn by Dr. Barbra Oakley at University of California-San Diego   [TedTalk]  

Mindshift by Barb Oakley 
a Mind for Numbers by Barb Oatley
 A Mind for Numbers: How to learn Math and Science, even if you flunked Algebra.
    Mindshift: Break through barriers to learning and discover your hidden potential.

Dyscalculia Signs and Research Video

 List of References: Experts, Authors, & Research featured in this Dyscalculia Signs & Research [Video].