Instructs students in Ammonia Refrigeration and Industrial Maintenance by lecturing in classroom and laboratory setting, developing and providing individual instruction as required, and arranging field trips and guest lectures. Evaluates student performance by grading classroom work, observing laboratory skills, and counseling students on personal and educational problems. Develops or revises vocational education curriculum by researching educational and professional material, reviewing and selecting textbooks, developing course outline and objectives, and preparing lesson plans and instructional aides. Maintains classroom records, including attendance records, personnel data, competency files, progress reports, and graduate follow-ups. Orders and/or requisitions and inventories supplies and equipment. Assists in scheduling of classes and use of equipment and registration of students. Conducts advisory committee meetings concerning curriculum, job vacancies, and student recruitment. Prepares and presents information to public schools and civic organizations and sponsors student clubs and organizations. Attends various workshops and conferences. Performs other duties as assigned.