Various types of token economies and contingency contract systems are emerging throughout private and public educational programs. The basic idea of this book is that a token economy based on currency creates a real-life situation for children in the classroom. The goal of this book is to help the teacher establish a currency-based token economy that will make education in the classroom more relevant to the lives of children in today's society. It is intended to be a resource for methods courses for elementary, secondary, and special education teachers as well as supplementary reading for introductory courses in education and behavior modification. Chapter 1 justifies the use of a currency-based token economy in the classroom. This is followed by a chapter explaining the mechanics of such a system in the classroom. Chapter 3 explains how to identify and acquire reinforcers that the students can purchase with currency at a minimum cost to the teacher. The next chapter outlines basic information that is needed to implement any token economy for people who are unfamiliar with the concept. Chapter 5 describes in detail the skills needed to operate a currency-based token economy in the classroom, while the next chapter outlines the procedures for setting up and stocking the store and discusses the various responsibilities associated with it. The next two chapters offer suggestions for setting up a bank and cover the psychological effects of implementing such a system. An appendix lists books that were used in this project. (SK)