One of the assumptions on which our system of subsidy per student is based is that families choose school according to their quality. To study how this assumption works in poor neighborhoods, we conducted twenty-six group interviews with mothers that send their children to municipal and private subsidized schools within a working-class urban commune of the Metropolitan Region in Chile. We focus the presentation of results on the criteria and sources of information people use when choosing a school. We conclude that: i) family preferences are limited by financial resources; ii) nearness and quality of education drive choice in a complex process where the SIMCE test has no relevant role; and iii) the type of student attending a particular sc...