Ecological Approach: The Chicago School's perspective that views social phenomena, such as crime and deviance, as products of the physical and social environment rather than individual pathology.
Social Disorganization Theory:A theory developed by the Chicago School that attributes high crime rates to the breakdown of social institutions and community control in urban neighborhoods.
Concentric Zone Model: A model of urban spatial structure proposed by the Chicago School that depicts the city as a series of concentric rings, with the central business district at the core and progressively less desirable residential areas towards the periphery.