In this study, the authors created a coding scheme using grounded theory to analyze expert and novice teachers’ verbalizations describing classroom events and their relevance for classroom management. Four categories of codes emerged. These referred to perceptions/interpretations, thematic focus, temporality, and cognitive processing expressed. Mixed-method analysis of teachers’ verbalizations yielded a number of significant effects related to participants’ expertise levels. Notably, teachers’ cognitive processing diverged significantly based on expertise level.