Explores students' cognitive behaviors observed in the process of learning as performed in the classroom context while acquiring a thinking skill such as choosing wisely. Micro-analysis of the students' video-recorded repeated applications of the skill identified 10 steps along the learning process, disclosing the students' development of schemata along three parallel lines: (1) utterance clarification; (2) elaboration and generalization of core concepts; and (3) schema integration, automation, and manipulation. (Author/MM)