Social change 7 Community and school 2 Educational anthropology 2 Educational change 2 Educational technology 2 Inner cities 2 Social networks 2 更多 ... Urban poor 2 African American professional employees 1 African American professional employees -- New York (State) -- New York -- Interviews 1 African Americans 1 African Americans -- New York (State) -- New York -- Social conditions 1 City planning 1 Civil engineering 1 Civil engineers 1 Community development 1 Gentrification 1 Harlem (New York, N.Y.) -- Biography 1 Harlem (New York, N.Y.) -- Social conditions 1 History 1 Middle class 1 Middle class -- New York (State) -- New York 1 Military cadets 1 New York (N.Y.) -- Biography 1 Poor 1 Puerto Ricans 1 Race relations 1 Social aspects 1 Social change -- New York (State) -- New York 1 Social conditions 1 少 ...