The handbook for preschool teachers and aides presents job descriptions and outlines school regulations and procedures of the San Ysidro Preschool Program. Job descriptions cover the responsibilities of teachers and aides in such areas as pupil progress, learning environment, professional competence, adjunct duties, and personal qualities. School regulations regarding legal responsibilities, ethics, program activities/costumes, teacher and aide schedules, staff lunch, staff lounge, preschool inservice, school visitations, and home visits are provided. Detailed instructions for recordkeeping of attendance and absences, student cumulative data, and individualized development charts are supplemented by appendices containing the appropriate forms. Descriptions of special services such as health, meals, and transportation cover physical examinations, immunizations, daily health inspection, health education, report of accidents, children's lunches and snacks, and regulations for bus children. Guidance in field trip activiites, testing and review procedures, parent-teacher relationships and meetings, and use of school supplies, equipment, and library materials is also provided. (MM)