This report is intended as a summative overview of the current research and program information related to the rescheduled school year. As such, it deals with (1) present models of rescheduling, (2) the school vacation, (3) basic comparative cost analysis, (4) busing requirements, (5) curriculum design requirements, (6) career opportunities for professional staff, and (7) conclusions and recommendations. The plans considered are those that limit the number of students in attendance at any one time to less than the total enrollment and those that accelerate completion of school to less than the traditional 12 years by extending the length of the school year. In the first group, the report covers the four-quarter plan, the four-quarter plan with rotating vacations, the twelve-four plan, and the 45-15 plan. The continuous four-quarter plan and the 11-month plan are discussed as representative of the second group. Some of the specific plans representative of a combination of the two principles are discussed: the New York Multiple Trails Plan, the New York Continuous Progress Plan, the Metro-Atlanta Plan, and the Flexible All-Year School Plan. A useful table compares the characteristics of major plans on the basis of the length of the school year and school day; divisions in school year; grade levels; time required to effect savings in classrooms, number of teachers, and dollars; vacations (other than Christmas and Spring Break); advantages; and obstacles to change. (Author/DN)