A team of researchers used a collaborative assessment protocol to compare the self-reported teaching beliefs of a convenience sample of preschool teachers (N = 57) to their documentable practices (i.e., practices that could be observed, recorded, and categorized using a deductive strategy). Data were examined from survey instruments, detailed classroom observations and time-sampling, curriculum materials, and program artifacts. Results indicated that when child-directed choice/play time, emergent literacy and language development activities were emphasized, teachers self-reported beliefs were more strongly aligned with developmentally appropriate practice (DAP) as a philosophy of practice. When consistent routines, organized classrooms, preplanned curriculum, and teacher-directed learning were the dominant behaviors, the teachers were found to report more "traditional" or academic-oriented beliefs.