During the freshman and sophomore years, civil engineering students take courses in chemistry, physics, mathematics, computer analysis, engineering mechanics, material science, graphics, and surveying. In the junior year, civil engineering students complete basic courses in seven areas of the discipline. These courses emphasize solution of practical engineering problems and extend a student's scientific background and analytic abilities. In the senior year, civil engineering students select professional electives in one or two areas of most interest and take a senior design sequence. Senior design teams focus upon open-ended design problems that require synthesis from several specialty areas for effective solution and introduce students to the requirements of professional engineering practice. An engineer's job isn't finished until a design has been transmitted to those who will implement it, so courses in oral and written communications are included in the curriculum. An engineering student must also develop awareness of and sensitivity to non-technical aspects of society, thus courses in fine arts, humanities, and social sciences are included as well.