This study establishes guidelines for planning future public schools based upon identified global, societal, and educational trends that likely will impact the types of school facilities built. Sixty-six guideline elements were developed and judged as essential, highly desirable, and significant by 13 national educational facility planning specialists. Major conclusions from the study are that educational practitioners advocated systematic, proactive, long- and short-range facility planning; that aesthetic, psychological, and behavioral environmental enhancement factors were key areas in future school designs; and that schools should be designed to offer optimal comfort to all inhabitants with flexible spaces where teachers and students can learn, relate, and explore. Appendices provide the interview guide: Guidelines of Planning Future Public School Facilities; an annotated list of jury participants; the facility questionnaire used to assess the guideline elements; and the respondent ratings to the individual guideline elements. (Contains 129 references.) (GR)