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When a Child Has Dyslexia and Dyscalculia, Treat the Math Issues Separately

By Daniel Ansari, PhD on

When people hear that a child has a reading issue like , they often assume his only struggle is with reading. They typically don’t think about whether he may also have a math issue like . The same is true in reverse.

But that assumption is wrong. Research has shown that kids who struggle with learning to read often also struggle with math and understanding numbers. It goes the other way, too. In fact, some researchers believe about two out of three children who struggle with learning math also struggle with literacy.

In my own research, I’ve rarely met a child with math issues who doesn’t also struggle with another area of learning (or multiple areas). The child may have more severe difficulties in one area versus another. But he still struggles with both.

We don’t yet fully understand why dyslexia and dyscalculia often co-occur. Early research suggests there may be similar genes that impact reading and math. But no matter how strong the connection, there are still big differences between these two learning differences.

It’s tempting to think there might be a way to “feed two birds with one hand” when helping kids who have both dyscalculia and dyslexia. It certainly would be more efficient. But for now, there’s no such approach.

Researchers have looked at the role of and attention in math and reading. They’ve also tested whether training systems in those areas can help improve learning skills involved with math and reading. But the programs didn’t have an impact on those skills.

The takeaway is that parents and educators can’t approach dyscalculia and dyslexia the same way. You have to treat the math difficulties with effective math teaching approaches. And at the same time, you have to treat the reading difficulties with teaching tools that are known to help struggling readers.

In young children with both learning differences, that means working on strengthening phonemic awareness for reading. It also means helping them to understand quantity and the relationship between number symbols and quantities for math. (Some people call this number sense.)

Reading programs based on the Orton–Gillingham (OG) approach are known to be effective. There’s no such thing as OG for math, however. Even so, there are teaching strategies that can improve skills. And there are accommodations at school that can support your child, too.


Any opinions, views, information and other content contained in blogs on Understood.org are the sole responsibility of the writer of the blog, and do not necessarily reflect the views, values, opinions or beliefs of, and are not endorsed by, Understood.

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