This resource manual is designed to provide Peace Corps trainers, trainees, and volunteers with an opportunity to learn more about diversity in the United States so they may help others they are serving to understand what it means to be an American. Section I contains six activities for preservice training: Just the Facts; If I Were; Stereotypes: A Role Play; Panel Discussion of Diverse Volunteers; Subject Bomb; and Diversity Dialogues. Section II has four activities for inservice language and cultural training: Strategy Talk; Dispelling the Myths; Diversity Questionnaire; and Volunteer Skits on Diversity. Components of the activities in Sections I-II are title, objective, materials list, preparation, time, procedure, and notes, examples, or required materials. Section III consists of eight lessons for the classroom: Find the American Game; Concentration; The Ethnicity Game; American History/Holidays with a Twist; Teaching About Minority Historical Figures; American Life; Current Events/State of Affairs of Minority Americans; and Short Stories with Diverse Characters. Lesson components include objective, target group, preparation, procedure, and supplemental materials, including suggested resources for reading materials, reading passages, sample lesson plan, examples, and activities. Section IV contains essays that express Peace Corps volunteers' comments on their experiences. An appendix lists 49 resource organizations and an encyclopedia of associations. (YLB)