Mathematics is a language of its own that is combined with the language (IE: English) in which it is being spoken. At first we learn the basics and the terminology to formulate formulas, thereby creating sentences and explanations as to how the formula works. Take this formula for example: a2+b2=c2. To a first grader this may just look like letters with floating two's. But, to a ninth grader they know that this is the formula for the Pythagorean Theorem.