The major activities conducted in this project included visitations to school systems with operational year-round programs, study and analysis of the various types of year-round school organizational plans, and identification and analysis of problems inherent in year-round operation of schools. The major objectives of the study were to determine whether a year-round program would benefit the district, what type of program would be best to implement, and what changes in curriculum would have to be made. The document summarizes the main features of the study, describing the program content and the procedures followed, the project personnel, the dissemination of information, and the project evaluation and costs. Appendixes provide discussions of the quinmester plan and the calendar adopted and present a timetable for plan adoption, the reasons for considering an extended school year, and a position paper on the extended school year. Descriptive outlines and school calendars of the 45-15 plan, rotating four-quarter plan, continuous four-quarter plan, elective quarter plan, trimester plan, and the optional quinmester plan are presented. Copies of local sample newspaper articles describe the publicity accorded the year-round school operation. (Pages 27, 28, 53, 64, and 65 may reproduce poorly.) (Author/DN)