A visitоr оr visitоrs in the clаssroom or center I. provide first-hаnd or reаl experiences. II. require less paperwork and concern than a field trip. III. are often problematic because they talk above the children’s level of understanding and may take more time than what is expected. IV. are great because they require very little preparation for the teacher. V. acquaint children with their community and the diversity of its people.