The Community High idea, according to the 1972 blueprint, was to use the city as classroom – thereby creating a "school without walls" where students could develop their own curricula by drawing on experiences and resource people throughout the community. Although the concept was new to Ann Arbor, planners took inspiration from similar innovative programs then springing up in other cities, including the Chicago High School for Metropolitan Studies (est. 1969), Philadelphia's Parkway High School, and Washington, D.C.'s School Without Walls (est. 1971). Reflecting the liberal educational philosophy of the period, other goals in the early CHS proposals were "to provide an opportunity for a heterogeneous group of students and faculty to learn and work together and to combat prejudices based on race, sex, age, lifestyle, and school achievement," and "to foster the development of identity and responsibility." The plan emphasized placing students of all grades in the same classes and programs, and had at its heart the Community Resources Program and the Forum Program, small units of students integrated by age, sex and race which would provide home bases for counseling and cultural-studies work.