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 introduces the concept of the improper integral. These types of integrals have one or more limits of the integration occur at infinity. Many problems are solved that teach the student how to properly solve integrals of this type. Teachers User Instruction & Resource Guide - Includes Recommended books & Calculus Websites.