During half of the twentieth century, three new divisions gradually worked their ways into the existing structure in the American educational system. The kindergarten carne first and was attached as a lower rung of the educational ladder. It has gradually become an integral part of American public school system. Secondly, the two-year junior college was superimposed on the top of the educational ladder. The place of junior college is still undefined; some look upon it as a part of higher education while others accept it as an extension of the secondary school. Third new division to work its way into the structure was the junior high school. It was not attached to the existing system but carved out of the middle.