Exponential growth is a mega-concept which has many applications. It is fundamental to understanding how and why systems work and fail, be they natural or man-made systems. Lessons/activities in this booklet are designed for Florida teachers to help provide their students with an understanding of the nature and implications of exponential growth. Lessons/activities may be used in such diverse subject areas social science, sciences, home economics, English, and mathematics. The booklet is divided into four parts. Background information for teachers is presented in part one. Activities designed to foster understanding of the nature of exponential growth and to provide opportunities to reflect upon the consequences of exponential growth in the realms of energy and environmental consumption are provided in sections two and four respectively. Objectives and instructional strategies are included for activities/projects in these sections. Part three presents a list of 31 activities designed to help students develop insights into patterns of arithmetic/geometric growth. Most are relatively ambiguous in their assignment format to stimulate students to utilize their personal life experiences to connect to exponential concepts. "Forgotten fundamentals of the energy crisis," a paper by Albert A. Bartlett, is included in an appendix. (Author/JN)