ABILITY TO: Learn schedules, procedures, and the use of tools and equipment used in custodial work; Work without immediate supervision; Learn to use cleaning materials, disinfectants, and equipment used in custodial work; Understand and carry out oral and written instructions; Establish and maintain effective working relationships with those contacted in the course of work. Under supervision, to keep assigned buildings, classrooms, laboratories, hallways, lavatories and office spaces clean and orderly; to perform custodial tasks in the care of floors, chalkboards, white boards, furniture, walls, and equipment; and to perform related work as required.