Understanding Dyscalculia

Dyscalculia is a specific learning disability in math. Kids with dyscalculia may have difficulty understanding number-related concepts or using symbols or functions needed for success in mathematics.

It is a common learning issue that doesn’t just affect them at school—the challenges can also create difficulties in daily life. Fortunately, various supports and strategies can help kids gain the skills they need.

Snapshot: What Dyscalculia Is

Dyscalculia is a lifelong condition that makes it hard for kids to perform math-related tasks. It’s not as well known as dyslexia, but experts believe it’s just as common. At its core, it affects number sense—understanding quantities and concepts like biggest vs. smallest.

Mechanics & Memory

Kids may understand the logic behind math but struggle with the mechanics, such as recalling math facts or holding numbers in mind while performing multiple steps (working memory).

Note: While sometimes called "math dyslexia," this term can be misleading as dyscalculia and dyslexia are distinct conditions.

Key Challenges:
  • Recalling math facts
  • Number sense (quantities)
  • Multi-step working memory
  • Visual-spatial representation

Signs and Symptoms

Preschool
  • Trouble learning to count
  • Struggles to recognize patterns
  • Difficulty with number symbols
  • Doesn't understand counting meaning
Grade School
  • Recalling basic math facts
  • Identfying/using +, - signs
  • Reliance on finger counting
  • Trouble with number lines
Middle School
  • Difficulty with place value
  • Fractions and measurements
  • Keeping score in sports
  • Aligning numbers in columns
High School
  • Applying concepts to money
  • Grasping graphs and charts
  • Measuring recipes/liquids
  • Finding multiple approaches

Other Co-occurring Issues

Dyslexia & ADHD

43–65% of kids with math disabilities also have reading disabilities. ADHD can lead to math errors due to trouble paying attention to detail.

Executive Function & Anxiety

Weaknesses in working memory and planning make math difficult. Math anxiety can lead to poor test performance due to nervousness.

Possible Causes

Genes:

Dyscalculia tends to run in families, suggesting that genetics play a significant role in math scores and disabilities.

Brain Development:

Differences in brain structure/function in areas associated with numerical processing, memory, and planning.

Environment & Injury:

Linked to fetal alcohol syndrome, prematurity, or acquired through injury to specific brain parts.

Professionals Who Help

  • Special education teachers
  • Math tutors/Educational therapists
  • Child psychologists
  • Pediatric neuropsychologists

Source: NCLD, Understood