One of a series of practitioner-oriented newsletters, the document provides elementary school principals with information about school discipline and Public Law 94-142 (The Education for All Handicapped Children Act and Section 504 of the Rehabilitation Act of 1973). Focusing on the impact of this law on general education classroom teachers and administrators, the article discusses the management and discipline challenges associated with the mainstreaming of handicapped students. In addition to giving handicapped students the same access to educational opportunity as nonhandicapped students, educators are encouraged to provide uniform standards of discipline for both. In the final section, administrators are urged to create a stable environment in which effective classroom management is equally established for all students. (LH)