Calculus essentially takes the fundamentals of algebra and extends them to include rates of change between quantities. The concepts are taught entirely through step-by-step example problems of increasing difficulty. It works by introducing each new concept in an easy to understand way and using example problems that are worked out step-by-step and line-by-line to completion. This lesson begins with introducing the concept, a limit in Calculus. This concept of the limit is then used to present the formal mathematical definition of the derivative. This limit-based definition of the derivative is used to solve several problems that allow the student to gain practice in finding derivates of functions. Teachers User Instruction & Resource Guide - Includes Recommended books & Calculus Websites.