This series covers essential subjects in Trigonometry and Pre-Calculus with exceptional clarity so that students will feel well prepared to move onto Calculus and Physics. What sets this series apart from other Trigonometry teaching tools is that 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 teaches students the properties of exponential functions and provides practice with working problems that involve exponentials. Graphs of several exponential functions are drawn and students are taught how the properties of the exponential function change as the sign of the exponent changes. Teachers User Instruction & Resource Guide - Includes Recommended books & Trigonometry Websites.