Differentiation and solidification. Communication of assessments and grades in staff room and report conference

In schools humans are classified and categorized by other humans through the assessment of their actions and documents they produce there. This practice of differentiation essentially relies on contingent teacher judgements that are aggregated into marks, end-of-year reports or school graduation certificates. The article explores the formal and informal situations of teachers talking about their students and classes and making decisions about their school reports. While teachers share their judgements on pupils in informal staff-room conversations, the thereby generated knowledge does not necessarily result in social consequences. It does, though, in formal gatherings such as report conferences, where the judgements are ratified and fixated. The judgement of an individual teacher is hereby transformed into a grade given by the school. By analytically characterizing these social and numeric-administrative objectifications the article shows how judgements on pupils are kept reversible and simultaneously become solidified during the school year.