This ethnic studies resource guide contains background readings and lesson outlines on various ethnic groups which elementary and secondary teachers can use to prepare classroom lessons. The guide was developed by teachers who attended a workshop sponsored by a federally funded ethnic studies project of the New York City Board of Education. The guide consists of two major sections. The first section contains historical and cultural background readings for teachers on the following ethnic groups: Black Americans, Chinese Americans, Greek Americans, Irish Americans, Italian Americans, Jewish Americans, Polish Americans, and Puerto Rican Americans. Also included for each ethnic group are bibliographies of print and nonprint materials for both students and teachers. The second part of the guide contains lesson ideas and activities that teachers can use to teach about the various ethnic groups. Included among the many suggestions for classroom activities are having students read books, view filmstrips, participate in classroom discussion, learn songs, play ethnic games, make picture books, and take field trips. (Author/RM)