This qualitative case study, conducted in the Midwestern United States, explored the perceptions of teachers at two different elementary schools as they implemented a physical activity program during the school day. The program engaged students in daily physical activity through brief, organized, structured physical exercise. Interviews and classroom observations uncovered six primary themes. There were differences between urban-suburban schools, primary-intermediate grades, gender, teacher participation and enthusiasm, relationships to other lessons, variety in music selections, student leadership, and combining singing or chanting with physical activity. Teacher perceptions and researcher observations reported a positive impact on student motivation, school climate, attitude, self-esteem, and energy for academic tasks. Through these themes a deeper understanding of program implementation was gained, and recommendations for future implementation were created. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]