This study aims to indicate fundamental problems and also to supply basic data for the reasonable distribution of the educational facilities in an effort to build better educational environments by examining and analyzing their changing process in primary and secondary schools in accordance with the changes in school year system in the period between 1900 to 1993. The following conclusion can be drawn : a. Separation of Middle and high schools due to the change of the school year system in 1951 into 6 - 3 - 3 - 4, has had great influence upon the arrangement of the educational facilities. b. Educational facilities in primary and secondary school are expanding, but they do not meet the criterion on an appropriate scale. Especially educational facilities of high schools need to be extended.