Why Is It So Hard To Learn Math?

If you are having difficulty learning math, you already know you are not alone. Many people struggle with math. In fact, it is the one discipline in which low grades and low performance are almost universally acceptable because they are so common. For example, a parent is more likely to excuse a lower report card grade in math than in any other subject because that parent probably got lower grades in math when he or she were in school.

But why is math so hard to learn? If we look at the natu...