The Most Common Learning Disabilities
Author: Thomas C. Weiss
Published: 2019/02/27 - Updated: 2026/01/05
Publication Type: Informative
Category Topic: Special Education - Related Publications
Page Content: Synopsis - Introduction - Main - Insights, Updates
Synopsis: This information provides a practical reference for understanding the neurologically-based processing problems that characterize common learning disabilities. The article is authoritative because it distinguishes learning disabilities from intellectual disabilities and clarifies that individuals with these conditions typically have average to above-average IQs. Parents, educators, and healthcare professionals will find this particularly useful as it outlines specific warning signs for six major categories: dyslexia (affecting 5-17% of the US population), dyscalculia, dysgraphia, dyspraxia, auditory processing disorder, and visual processing disorders.
Each section details observable symptoms - from letter reversal and poor spelling in dyslexia to difficulties with mathematical concepts in dyscalculia - making it easier to recognize when a child or adult may need professional evaluation. The information serves families navigating educational accommodations, teachers developing individualized instruction plans, and older adults who may be experiencing cognitive changes, offering clear descriptions without medical jargon that help distinguish everyday learning challenges from diagnosable disabilities - Disabled World (DW).
Introduction
Learning disabilities are broadly defined as neurologically-based processing problems that can interfere with learning basic skills such as reading, writing and/or math.
Main Content
A learning disability is not an intellectual disability, a learning disability is a disability that affects a person's ability to process information. People with learning disabilities possess an average to above average IQ - (ldapei.ca/types-of-learning-disabilities.html). It's important to note that attention deficit hyperactivity disorder (ADHD) and autism spectrum disorders (ASD) are not the same as learning disabilities - (webmd.com/children/guide/detecting-learning-disabilities).
Because of the wide variations it's not always easy to identify learning disabilities, as there is often no single symptom or profile that you can look to as proof of a problem. However, some warning signs are more common than others at different ages. Common signs that a person may have learning disabilities can include:
- Clumsiness
- Poor memory
- Trouble telling time
- Problems with math
- Problems paying attention
- Trouble following directions
- Problems staying organized
- Problems reading and/or writing
NOTE: These signs alone are not enough to determine that a person has a learning disability. Only a professional can diagnose a learning disability.
Dyslexia - Reading Disability
Approximately 5 to 17% of the US population have dyslexia. The main signs or symptoms of dyslexia are:
- Poor spelling
- Below average spelling
- General vocabulary skills
- Letter and word recognition
- Reading speed and fluency
- Delay in being able to speak
- Trouble telling left from right
- Problems learning the alphabet
- Understanding words and ideas
- Giving up on longer reading tasks
- Trouble learning foreign languages
- Difficulty learning songs and rhymes
- Difficulty expressing thoughts or feelings
- Confusing short words such as: and, the, but
- Slow rate of reading, both silently and out loud
- Reversing letter shapes and the letters in words
- Difficulty organizing written and spoken language
- Difficulties rhyming words and learning new words
- Problems making the links between letters and sounds
- Problems following directions that involve multiple steps
- Having a hard time understanding what others are saying
- Difficulty understanding questions and following directions
- Difficulty learning new words (vocabulary), either while reading or hearing
- Problems remembering numbers in sequence (Phone numbers, Addresses etc.)
Dyscalculia: Disability in Math
Children with Dyscalculia often have problems learning mathematical concepts, and memorizing mathematical facts and/or understanding structure of mathematical problems on the page such as:
- Numerical organization
- Quantity, place value and time
- Trouble describing math processes
- Difficulty with math-related word problems
- Trouble making change in cash transactions
- Messiness in putting math problems on paper
- Trouble understanding the time sequence of events
- Trouble with logical sequences (E.g. steps in math problems)
Dysgraphia: Writing Disability
Difficulties in handwriting that can cause loss of academic achievement through inability to construct compositions or extended written texts and can include:
- Illegible writing
- Spelling problems
- Problems with grammar
- Trouble writing down ideas
- Saying words out loud while writing
- Writing organization and coherence
- Neatness and consistency of writing
- Accurately copying letters and words
- Strong dislike of writing and/or drawing
- Difficulties or awkwardness holding a pencil
- Lack of control of spacing and sizing of letters
- Trouble writing down thoughts in a logical sequence
- Losing energy or interest as soon as they start writing
- Leaving words unfinished or omitting them when writing sentences
- Grammatical and punctuation errors within sentences and poor paragraph organization
Dyspraxia: Motor Skills Disability
Dyspraxia is a nonverbal learning disability, for example:
- Motor clumsiness
- Lack of organizational skills
- Problems with social relationships
- Disorders of speaking and listening
- Poor skills governing visual-spatial relationships
Dysphasia (Aphasia): Language Learning Disability
Signs of a language based disability may include:
- Fluency of speech
- Problems with verbal language
- Inability to retell a story or narrate a first-hand anecdote
- Difficulties understanding the meanings of words and directions
Primary Progressive Aphasia (PPA) - Facts and Information
Auditory Processing Disorders
Auditory processing disorder (APD), also known as central auditory processing disorder (CAPD), is a hearing problem that affects about 5% of school-aged children. Auditory processing disorders may cause a person to struggle with distinguishing similar sounds, as well as other difficulties.
Children with auditory processing disorder are thought to hear normally because they can usually hear sounds that are delivered one at a time in a very quiet environment. However, they may not distinguish slight differences between sounds in words, even when the sounds are loud and clear enough to be heard. Symptoms of APD can include:
- Child may be disorganized and forgetful
- Conversations may be hard for the child to follow
- Noisy environments may be upsetting to the child
- Verbal math problems may be difficult for the child
- Child's behavior and performance improves in quieter settings
- Easily distracted or unusually bothered by loud or sudden noises
- Child may have difficulty following simple or complicated directions
- May have reading, spelling, writing, or other speech-language difficulties
Visual Processing Disorders
These are disorders that can result in missing subtle differences in shapes or printed letters, losing place frequently, struggles with cutting, holding pencil too tightly, or poor eye/hand coordination. Visual Processing Disorders can cause people to struggle with seeing differences between similar letters, number, objects, colors, shapes and patterns.
It is important to note that many children may have trouble reading, writing, or performing learning-related tasks however, this does not mean they may have learning disabilities.
Insights, Analysis, and Developments
Editorial Note: While this overview offers valuable insight into the spectrum of learning disabilities, it reinforces a critical point often overlooked in educational settings: struggling with academic tasks doesn't automatically indicate a disability. The distinction matters because mislabeling typical developmental variations can create unnecessary anxiety for families, while missing genuine learning disabilities delays crucial interventions. What makes this information particularly relevant today is the growing recognition that learning disabilities exist on a continuum, with many individuals displaying combinations of symptoms across categories rather than fitting neatly into single diagnostic boxes. As neuroscience research continues to reveal how diverse brains process information differently, the focus is shifting from deficit-based thinking toward understanding cognitive diversity - recognizing that alternative processing styles may require different teaching approaches but don't diminish a person's intellectual capability or potential for achievement - Disabled World (DW).
Author Credentials: Thomas C. Weiss is a researcher and editor for Disabled World. Thomas attended college and university courses earning a Masters, Bachelors and two Associate degrees, as well as pursing Disability Studies. As a CNA Thomas has providing care for people with all forms of disabilities. Explore Thomas' complete biography for comprehensive insights into his background, expertise, and accomplishments.