"Schools at Work in 48 States" is a record of a cooperative study made over a period of two and a half years by nine staff members of the elementary school section of the Office of Education, with the advice and help of their co-workers. Such a study requires that the group of persons working together arrive at some commonly accepted principles of education in order that as they visit schools they may not only observe and record, but also be able to identify what they have seen and heard with these principles of good teaching and learning. Over a period of a year's time and preliminary visits, the Elementary Section staff discussed the contributions of each subject area to a total school program that is good for children. They continued such discussion as reports of visits were made in an attempt to relate principles and practices throughout the study. Information about ways of working to improve education for children needs to be shared on a broad basis, not to bring about undesirable uniformity, but rather to stimulate widespread discussion and evaluation of elementary school practices. It is hoped that the bulletin may help improve classroom teaching and bring about closer relationships between school and community. An index is provided. (Contains 2 footnotes.) [Visitors and reporters who contributed to this bulletin include: Effie G. Bathurst, Paul E. Blackwood, Glenn O. Bough, Mary Dabney Davis, Wilhelmina Hill, Gertrude M. Lewis, Helen K. Mackintosh, Arne W. Randall, and Elsa Schneider. Best copy available has been provided.]