The physical environment of the classroom is a web of interrelated and, in many instances, interdependent variables. To examine the effects of the physical environment of the classroom, a total of 45 annotated citations are grouped under the following categories: (1) importance and description of classroom environment; (2) individual factors of lighting and heating, color and noise, seating, and general variables; (3) impact upon students; (4) designing and planning for classroom environments; and (5) creative use of classroom environment. There seems to be general agreement as to the basic affect of spatial arrangement, seating, and general aesthetic appeal of a classroom. Many authors stressed that the environment of a classroom needs to be examined and planned just as any other teaching strategy. Included in the paper are a glossary and a 63-item bibliography. (MLF)