By Published On: March 20, 20266.4 min read
Different Types of Learning Differences

READ Academy of Sacramento

Do You Know These 3 Common Learning Disabilities?

What they are, why they overlap, and what you should know.

By Leah Skinner | March 2026

Key Takeaway

Dyslexia, dysgraphia, and dyscalculia are closely connected learning differences that often appear together. This helps explain why a child receiving reading support may still struggle with writing and math. A single diagnosis does not always capture the full picture. In this article, we break down what each condition looks like, why they frequently co-occur, and what that means for educators to create an effective intervention plan.

Most parents who find us don’t have a formal assessment. What they have is a suspicion that’s been growing. Something a teacher mentioned at a parent-teacher conference. A pediatrician who said, you might want to look into this. A tutor who picked up on something the school never brought up. Some parents just knew. They sat at the kitchen table every night watching their child struggle and felt it long before anyone put a name to it. What almost none of them have is the full picture. They came in focused on one thing, usually reading, because that’s the thing someone pointed to. What nobody told them is that the child who can’t decode words is very often the same child who avoids writing anything down, loses track of time, and can’t hold numbers in their head. These things travel together. Knowing that changes everything about how you help your child.

Leah Skinner, M.Ed., Founder, READ Academy

Dyslexia, dysgraphia, and dyscalculia are not three separate problems. They are three expressions of the same underlying difference in how the brain processes and encodes information. They share the same neurological roots, which is why they co-occur at rates most parents are never told about. Research shows 30 to 47 percent of children with dyslexia also have dysgraphia, and roughly 40 percent also show signs of dyscalculia. Understanding each one individually matters. Understanding how they connect matters more.

Dyslexia

A language processing disorder. Not a vision problem. Not a lack of effort

Dyslexia affects a person’s ability to spell and read. Reading comprehension, fluency, and writing are all impacted. Severity differs from person to person, so one child with dyslexia may have reading and writing skills that are more impaired than another, but the underlying cause is the same.

Dyslexia mainly affects reading and spelling. Students will have difficulty sounding out words, often replacing harder words with simpler or more familiar ones. They mix up similar-looking letters, “b” and “p,” “d” and “q”, and struggle to read at a steady pace. Remembering information from a passage they just finished is genuinely hard, not selective.

Because dyslexia is a language processing disorder, it affects both written and spoken language. A student with dyslexia may also have difficulty expressing themselves verbally, not just on paper. This surprises a lot of parents who assumed the challenge was purely about reading.

In school, the impact shows up in finishing assigned reading, retaining information, spelling tests, and essay writing. Outside school, it shows up in remembering a grocery list, reading directions, knowing left from right, and verbally expressing feelings in a stressful moment. These are not exaggerations. They are the daily reality for a student with dyslexia who has not yet received the right support.

What Actually Helps

Phonetic-based instruction and explicit training in pattern recognition. Structured literacy programs, including the Barton System and the Wilson Reading System, begin with phonetic basics and build systematically, making sure each concept is fully understood before the next is introduced. At READ Academy, Wilson Reading System is our primary language arts program, used across all grade levels.

Dyscalculia

Dyscalculia affects a person’s ability to understand numbers, including concepts related to time, amounts, sequencing of events, and math problems. While it gets called “number dyslexia,” it is important to understand the distinction: dyslexia is a language processing disorder, while dyscalculia is a difficulty with the concepts of numbers themselves. They affect life in very different ways and require very different interventions.

Dyscalculia weakens number sense, the ability to understand the number system and how numbers relate to each other. Any experience tied to number sense is affected, which can expand into many areas of life that do not obviously involve math at all.

In school, students need to learn counting, “more” and “less,” different representations of numbers (the word “seven” versus the numeral “7”), and how to work through math equations. All of these become significantly harder with dyscalculia. Outside of school, dyscalculia affects money, time management, scheduling, directions, spatial awareness, and a long list of everyday experiences most people take for granted.

Having dyscalculia does not mean a child is “bad at math.” Their difficulty comes from how their brain is structured, not from a lack of intelligence or effort. That distinction matters enormously for how we talk to students about what they are experiencing.

What Actually Helps

Structured learning with visual and tactile methods. Tools like blocks and color-coded graphs make mathematical concepts more concrete and easier to retain. Calculators matter too, students with dyscalculia should be encouraged to use one whenever possible, so they can demonstrate their understanding of the problem-solving process without the burden of calculation. At READ Academy, we use Making Math Real, a multisensory methodology specifically designed for students who process math differently.

Dysgraphia

The clearest sign of dysgraphia is not messy handwriting. It is the gap between what a student can say and what they can write. Ask a child with dysgraphia to explain something out loud and they will often do it well. Ask them to write it down and you get three sentences, missing half of what they just told you. The knowledge is there. Getting it onto paper is where everything breaks down.

In written expression, this gap shows up in patterns most parents and teachers recognize once they know what to look for: answers that are much shorter than the student’s actual understanding, real difficulty getting started even when the student knows what they want to say, writing that lacks organization or detail, sentences that follow the same simple structure over and over, spelling and grammar errors that persist even when the student knows the rules, and a consistent avoidance of any task that requires writing.

The problem is that what a teacher sees is the output. A few sentences, a half-finished paragraph, a paper that does not reflect what the student said out loud ten minutes earlier. Without knowing about dysgraphia, it is easy to read that as laziness or not trying. It is almost never that. The act of writing is slow and effortful enough that by the time a student gets words on the page, the thinking behind them has already moved on.

Dysgraphia does not go away when a student switches to typing, though typing removes a significant barrier. The written expression piece, the organizing, the starting, the getting ideas out in a coherent sequence, still needs direct instruction. That is what structured writing programs address.

What Actually Helps

Typing as an accommodation removes a significant barrier for many students. Structured writing instruction addresses both the physical mechanics and the cognitive process of written expression. At READ Academy, we use the Institute for Excellence in Writing (IEW), which provides sequential, systematic instruction that helps even the most reluctant writer develop as a communicator, regardless of what their handwriting looks like.

When All Three Show Up Together

Most of the students we enroll at READ Academy do not have just one of these conditions. Dyslexia, dysgraphia, and dyscalculia share neurological roots and frequently co-occur. A child who struggles with reading often also has difficulty with writing. A child with number-processing challenges often also struggles with sequencing, which shows up in writing as well.

This is one of the reasons a general assessment, or a single-subject tutor, often falls short. If you address the reading and leave the writing and math alone, the student is still spending most of their school day fighting against their own brain.

A comprehensive dyslexia and learning disability assessment identifies which conditions are present, to what degree, and what the right intervention looks like for that specific student. That profile is what allows instruction to actually work.

Dyslexia

Language processing, reading, spelling, verbal expression

Dysgraphia

Written expression, oral/written gap, output does not reflect understanding

Dyscalculia

Number sense, math, time, money, sequencing

If you came here trying to make sense of specific learning differences like dyslexia, dysgraphia, and dyscalculia, it may be because the labels alone have not answered what is actually going on for your child. Most people have heard of dyslexia. Far fewer are familiar with dysgraphia or dyscalculia, and even fewer understand how often these learning differences overlap. We hope this gave you a clearer picture of what each condition looks like, why they so often appear together, and what that means for effective intervention.

These learning differences are not isolated struggles to address one at a time. They are connected expressions of the same underlying neurological wiring. Understanding that connection can change how you see your child, how you talk with teachers, and what kind of support you know to pursue next.

Questions Parents Ask

Honest answers to the things families want to know.

Does dyslexia mean my child sees letters backwards?

No. This is one of the most persistent myths about dyslexia, and it causes real harm because children who don’t reverse letters often go unidentified for years. University of Michigan’s Dyslexia Help confirms there is no evidence that dyslexic children actually see letters or words backwards. Reading Rockets notes that while reversals can be part of the picture for some children, they are not the most common or most important indicator. Dyslexia is a language processing disorder. The challenge is in connecting written symbols to sounds, not in how the eyes physically see the page.

Why is my child still struggling after getting reading help?

Because reading intervention targets one condition. If your child also has dysgraphia or dyscalculia, those are separate neurological challenges that reading help does not address. A 2025 review in Frontiers in Education found that the co-occurrence of dyslexia and dyscalculia places children at significantly higher risk of continued underachievement even when one condition is being treated. Writing struggles and math struggles that persist after reading intervention are frequently signs that the other conditions were never identified. The intervention was working on one branch while the roots stayed untouched.

Can a child have dyslexia, dysgraphia, and dyscalculia at the same time?

Yes, and it happens far more often than most families are told. Research cited by the Colorado Department of Education puts the co-occurrence rate for dyslexia and dyscalculia at approximately 40%. WPS Publish’s comorbidity research found that between 30% and 47% of children with dyslexia also show dysgraphia symptoms. These three conditions share neurological roots, which is why they travel together. A comprehensive assessment is what identifies which are present and how they interact.

Will my child's school test for these, or do I need to go somewhere else?

Schools can screen for reading difficulties, but their evaluations are designed to determine eligibility for special education services, not to diagnose specific conditions. As Kidvokit explains, a school evaluation focuses on educational impact, not clinical diagnosis. Decoding Dyslexia Oregon notes that schools do not diagnose dyslexia and that a private evaluation is a separate process entirely. A comprehensive private assessment, like the one offered at READ Academy, identifies the specific conditions present, their severity, and what instruction needs to look like.

Is dyscalculia just being bad at math?

No. The American Academy of Pediatrics via Banner Health describes dyscalculia as an impairment in the brain-based processes necessary for math, not a reflection of effort or intelligence. It affects number sense at a foundational level, which bleeds into time management, handling money, directions, and sequencing. A child who seems perpetually disorganized, loses track of time, or can never seem to make change may be dealing with dyscalculia, not carelessness.

Something seems off but no one has officially said anything. What do I do?

Trust it and act on it. The International Dyslexia Association states clearly that parents often recognize signs of dyslexia before anyone else does, and that the wait-and-see approach costs children critical intervention time. Ignite Dyslexia puts it plainly: follow your gut and pursue answers until you are satisfied. Early identification produces better outcomes because the brain is most adaptable in the early years. If something feels wrong, a comprehensive assessment is the fastest way to know what you are actually dealing with.

LS

About the Author

Leah Skinner, M.Ed.

Leah Skinner, M.Ed., Founder of READ Academy, holds a Master of Education: Dyslexia Specialist and is a Doctoral Candidate in Reading, Literacy, and Assessment. As a passionate Certified Dyslexia Therapist and Education Advocate with over 20 years of experience and mother of five neurodiverse sons, she guides Sacramento families through every step of their educational journey, fostering confidence, independence, and lifelong academic success. After five years at a school for dyslexic students, Leah opened READ Academy in 2020 to bring specialized, evidence-based instruction to a larger community in Sacramento. She is supported by her husband and five sons, four of whom are dyslexic.

Watch

3 Common Learning Disabilities: What Every Parent Should Know

Chapters

  • 0:00 —  Introduction: The hidden connection between three conditions
  • 0:18 —  Leah Skinner on what a struggling child is really telling you
  • 0:35 —  Dyslexia: A language processing disorder
  • 1:18 —  What actually works for dyslexia
  • 1:51 —  Dysgraphia: The expression gap
  • 2:25 —  How to bridge the gap for students with dysgraphia
  • 2:43 —  Dyscalculia: Number sense, not just math
  • 3:13 —  What works for dyscalculia
  • 4:11 —  The hidden connection and co-occurrence rates
  • 4:50 —  What this means for finding real support
  • 5:00 —  Why treating one condition at a time doesn't work
  • 5:18 —  The path forward: Recognize, connect, support

Listen

Full audio narration with Leah Skinner, M.Ed.

0:00 / 0:00

3 Common Learning Disabilities

Leah Skinner, M.Ed., READ Academy

Chapters

  • 0:00 —  Introduction: The hidden connection between three conditions
  • 0:18 —  Leah Skinner on what a struggling child is really telling you
  • 0:35 —  Dyslexia: A language processing disorder
  • 1:18 —  What actually works for dyslexia
  • 1:51 —  Dysgraphia: The expression gap
  • 2:25 —  How to bridge the gap for students with dysgraphia
  • 2:43 —  Dyscalculia: Number sense, not just math
  • 3:13 —  What works for dyscalculia
  • 4:11 —  The hidden connection and co-occurrence rates
  • 4:50 —  What this means for finding real support
  • 5:00 —  Why treating one condition at a time doesn't work
  • 5:18 —  The path forward: Recognize, connect, support

In This Episode

Leah Skinner walks through the three most common learning disabilities seen at READ Academy, dyslexia, dysgraphia, and dyscalculia. She explains what each condition actually looks like in daily life (not just in the classroom), why they frequently appear together, and what real intervention looks like for a student who has one or more. If you have been trying to understand what your child is dealing with, this is a practical 15-minute listen.

View Full Transcript

0:00 Have you ever looked at a bright child, maybe even your own, and wondered why they work so, so hard, but just can’t seem to keep up in school? Well, if that sounds familiar, you’re in the right place. We’re going to look at three common learning disabilities. But what’s really important is the hidden connection between them. Uncovering that is the key to finding the right support.

0:18 This quote from Leah Skinner just gets right to the heart of it. It’s such a powerful reminder that when a child is giving it their all and still struggling, that’s not some flaw in their character. No way. It’s a signal. And our job is to figure out what that signal means.

0:35 All right. First up, let’s talk about dyslexia. What is it at its core? It all comes down to how the brain processes language. It’s a neurological thing. It affects how a person handles language, which makes reading, writing, and spelling incredibly tough. And let’s get a couple of things straight right now. It is not a problem with their eyes, and it has absolutely nothing to do with how smart they are or how hard they’re trying. Dyslexia isn’t just a school problem. In the classroom you see the classic signs like trouble sounding out words or mixing up letters. But it doesn’t just stop when the bell rings. It can pop up in everyday life, like struggling to remember a grocery list or even just telling left from right.

1:18 But here’s the good news. We know what works. The research is so clear on this. Specific, really structured approaches make a huge difference. We’re talking about things like phonetic-based teaching and proven programs like the Wilson Reading System. These things systematically build those language skills they need from the ground up.

1:51 Okay, next up is dysgraphia. If you’ve ever met a kid who can tell you this incredibly detailed, amazing story, but then can barely write a single sentence, you’ve probably seen dysgraphia in action. It’s all about that frustrating gap between knowing something and being able to write it down. Dysgraphia is a written expression disorder. The biggest clue isn’t just messy handwriting. It’s the huge, glaring difference between what a student can say out loud and what they can manage to get down on paper. On one side, that’s what a student can say, these detailed, organized, brilliant thoughts. But then on the other side, that’s what they can write. Maybe just a couple of short sentences that don’t even begin to cover what’s in their head. The ideas are there. It’s like the bridge to the page is out.

2:25 So how do we help them build that bridge? Simple tools can be a game changer. Just using a keyboard can take away the whole physical struggle of handwriting. And on top of that, structured writing programs like IEW can systematically teach them how to get those amazing thoughts organized and out onto the page.

2:43 And finally, let’s touch on dyscalculia. This one gets dismissed all the time as just being bad at math. But it is so much deeper and more fundamental than that. Dyscalculia is really a core difficulty with something called number sense. It’s about that basic ability to understand what numbers even mean and how they relate to each other. This doesn’t just mess with math class. It can affect their whole understanding of time, space, and how much of something there is.

3:13 In school, it’s trouble with counting or getting concepts like more versus less. But in real life, it shows up as trouble with money, always being late, or even getting lost easily and struggling to keep a schedule. To make math make sense, we have to make it real and tangible. Structured, multisensory approaches are the answer here. Using things they can touch and see, like blocks and graphs, helps them actually feel the numbers. And yes, a calculator is an absolutely crucial tool. It lets them focus on solving the problem, not just getting stuck on the basic math.

4:11 OK, so we’ve looked at dyslexia, dysgraphia, and dyscalculia one by one. But now we get to the real aha moment, the hidden connection, and why you so often see these three showing up together. We have a habit of treating these like they’re three totally separate issues. But that’s a huge mistake. They aren’t separate problems at all. They’re just different ways that the same underlying brain wiring shows up. Nearly half, 47% of kids with dyslexia, also have dysgraphia. And 40% also show signs of dyscalculia. This kind of overlap isn’t just common. It’s practically the norm.

4:50 What does this really mean? It means that dyslexia, dysgraphia, and dyscalculia aren’t different trees. They’re all branches growing from the exact same neurological roots. And that is the key to understanding why a child might be struggling in so many different ways all at once. It means we can finally stop guessing and start knowing. It shows us the real path to support that actually works.

5:00 This is exactly why hiring a tutor for just one subject often doesn’t work. Think about it. If you get a reading tutor for a child who also has dysgraphia and dyscalculia, they are still fighting a battle for most of their school day. You’re only helping with one piece of a much, much bigger puzzle.

5:18 So the path forward becomes pretty simple. Step one, we have to recognize the signals we’ve talked about. Step two, we have to understand the connections between them. And finally, step three, we need to find comprehensive support that helps the whole child, not just one isolated struggle. Getting a diagnosis, that’s a huge first step. But it’s not the final destination. The real goal is to have answers that make sense of the entire picture.

Stop guessing. Start knowing.

Finally having answers is where your child’s transformative journey begins. A comprehensive dyslexia assessment gives you a clear picture of what is happening and what to do about it.

Give us a call

(916) 258-2080

2565 Millcreek Dr, Sacramento, CA 95833

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