The methodology used in the evaluation of this unit is the same as that described in SO 000 468. Twenty-seven teachers were selected for the field trial thereby involving approximately 1,250 ninth through twelfth grade students. This unit has six integral activities and one optional scheduled as the second activity: 1) Operation Bigger Beef; 2) Games Illustrating the Spread of Ideas; 3) A Lesson from Sports; 4) European Expansion; 5) Canada: A Regional Problem; 6) Different Ideas About Cattle; and, 7) Culture Change, a Trend Toward Uniformity. Some of the specific conceptual objectives are an understanding of: cultural diffusion, cultural regions, cultural relativity and interdependence, the increasing similarities among cultures around the world, and the complexity of culture and cultural change. The unit test concerning the attainment of the unit objectives indicate that activities 2, 3, 4, 6, and 7 were effective in communicating their major objectives. The ratings on the effectiveness of the unit as a whole and the individual activities as to student and teacher interest, enjoyment, and student learning are given. A number of revisions are suggested for each activity. See SO 000 468 for a list of the related reports. (SBE)