The study provides a direct test of the popular notion that schools are negatively oriented towards children from the working classes. In nine hours of systematic classroom observation it was found that working-class children received signficantly less than their share of teacher interactions when classrooms were highly teacher-centered. In student-centered classrooms, however, they received significantly more of their share of teacher interactions. This is interpreted in terms of the greater compatibility of open, student-centered environments with the working-class life style. In a recent paper, Randall Collins examines the relative utility of functional versus conflict models in ordering the data on educational stratification. In arguing for a conflict perspective he reviews several studies in the educational literature which claim to support the general proposition that schools are middle-class agencies, in essence that they provide for the continuity of the stratification system by transmitting the values and life styles of the middle classes (Collins, 1971). A stronger statement may be found running through various other writings in the sociology of education, namely that schools actively discriminate against working-class children. This is supposedly manifested in the differential failure rate of working-class students (Hollingshead, 1949; Sexton, 1961), their low participation rate in extra-curricular programs (Coster, 1958; Hollingshead, 1949), and the negative attitude of teachers toward such students (Abrahamson, 1952; Davidson and Long, 1960). The teacher as either a willing or unwitting party to the discrimination process is thus strongly implied, and indeed