This volume utilizes biography-social science research findings, classroom management techniques, and a language/communication analysis system to consider multi-ethnic interaction in the classroom. After defining ethnicity and making a case for "heritage ethnicity" and "scholastic ethnicity," the concept of stereotyping and its relation to ethnicity are investigated. Other aspects of ethnicity discussed include verbal communication, nonverbal communication, orientation modes, social value patterns, and intellectual modes. Literature dealing with these phenomena is reviewed and direct observation data from classroom interactions are used to supplement the investigations presented. The relationship of basic and advanced notions about the impact of ethnicity, particularly in the schools, are critically defined through sample profiles/checklists and charts. Appended are a nonverbal observation checklist and classification system and a matrix format which allows a social value pattern to be described by a series of numbers. (Author/EB)