WHAT ARE LEARNING DISABILITIES?

Learning disabilities aren't contagious, but they can be genetic. That means they can be passed down in families through the genes, like many other traits we get from our parents and grandparents. Someone with a learning disability probably has other family members who have had some learning troubles, too.

Kids with learning problems are sometimes surprised to find out that one of their parents had similar troubles when he or she was in school. But kids today have an advantage over their parents. Learning experts now know a lot more about the brain and how learning works — and it's easier for kids to get the help they need.

Dyslexia is a learning disability that means a kid has a lot of trouble reading and writing. Kids who have trouble with math may have dyscalculia (say: dis-kal-kyoo-lee-uh). And people who have trouble forming letters when they write may have dysgraphia (say: dis-graf-ee-uh). Other kids may have language disorders, meaning they have trouble understanding language and understanding what they read.

It can be confusing, though. What qualifies as "trouble" enough to be diagnosed as a learning disability? Reading, doing math, and writing letters may be tough for lots of kids at first. But when those early troubles don't fade away, and it's really difficult to make any progress, it's possible the kid has a learning disability.

Attention deficit hyperactivity disorder (ADHD) is sometimes thought of as a learning disability but it's not usually considered one. Why? Because most kids with ADHD can learn in school without special assistance, even though they may be easily distracted or have trouble sitting still in class. Although ADHD itself isn't a learning disability, researchers believe kids with ADHD may be more likely to have learning disabilities.