This volume presents the results of the research project "Knowledge-Based Interpretation and Action Competencies of Educational Staff in Daycare Centers." The educators reflect on their daily routines by drawing on various organizational and orientation patterns, without explicitly referring to methodological-didactic or subject-specific knowledge. However, it cannot be concluded that such knowledge is absent. Skepticism is therefore warranted towards notions that assume knowledge is stored individually and becomes practically effective through simple transfer processes. Rather, it appears to be sedimented knowledge that is difficult to articulate.