This is the 21st in a series of yearly updates of judicial decision summaries for case law related to elementary and secondary education issues. One can use previous and future editions to track decisions on appeal or to see trends in case law. The cases included, with a few exceptions, were selected from court decisions found in federal and regional reporters from July 1, 1999, to June 30, 2000. These cases provide a general overview of school-law issues for practicing administrators, teachers, and school-board members. As in the past, this monograph is intended principally to provide broad-scope treatment of case law involving issues in public schools. Cases were selected based on their relevance to current problems in the public-school setting, their definitiveness as articulations of law, and their dependability as consistent guides to education policymaking and practice. The case summaries emphasize succinct treatment of legal issues in an effort to inform without presenting unnecessary complexity or procedural irrelevancies. They dispose of extensive narrative and background commentary. The summaries are not intended to be legal advice. Included are an explanation of the legal reference notes, a glossary of legal terms, and an index. (Author/WFA)