Professional exemption: The employee has a primary duty of performing work requiring knowledge of an advanced type in a field of science or learning customarily acquired by a prolonged course of specialized intellectual instruction and study or has a primary duty of teaching, tutoring, instructing, or lecturing in the activity of imparting knowledge and is employed and engaged in this activity as a teacher. Oversee day-to-day operations of the concession stands, which may include: Ensure concessions are running according to schedule, including opening and closing.