The following physical demands are representative of those that must be met by the employee to perform the essential functions of the job: sitting, standing, reaching, walking, lifting, bending, crouching, kneeling, climbing, pushing, pulling, finger dexterity, carrying, repetitive motions, speaking, listening, and visual acuity. The employee must demonstrate physical strength, agility, and energy to perform essential job functions and to ensure health, welfare, and safety of all students and of self.