Physical factors include constant walking, standing, stooping, kneeling, crawling, reaching, use of hearing, smell, near/mid/far vision, depth perceptions, color and field of vision and bending; frequent carrying/lifting and handling; and occasional sitting, pushing/ pulling, climbing, reaching, travel and typing. The Teacher Aide, under the direction of the Child Care Center Manager, assists the Instructors in all aspects of the classroom operations, including performing various support and child supervision services to assist in the instruction and development of young children.