CHICAGO --The chancellor of the City Colleges of Chicago says he plans to retire at the end of the academic year. Wayne Watson was appointed chancellor of the system of seven community colleges in 1998. Among the achievements in his tenure were faculty seminars for teachers to improve their skills and Project Align, a program in which local universities work with Chicago Public Schools students. Watson also oversaw vocational training programs for students in health care, the culinary field and construction. The 62-year-old Watson says the past decade has been challenging and rewarding. Chicago Mayor Richard Daley says Watson has provided strong leadership in his tenure. About 115,000 students attend the City Colleges of Chicago.