Given that the vast majority of people reading this book will never ever have to teach calculus, you might be wondering why in the world the topic is being addressed here. Well, even though you might not teach calculus, chances are that when teaching math and science you are using results that come from the application of calculus. When Junior asks where in the world the formula for the volume of a sphere comes from, you can go beyond saying, “It’s calculus, Junior,” to giving Junior a rough idea of the process involved in finding that formula. So no, calculus won’t be taught here but rather what will be taught is an understanding of the basic concepts upon which calculus is based.