Initially, the categorization of reflection was determined by the degree to which each vocabulary type─cognition, emotion, memory, and evaluation─was used by individual student. It was discovered, however, emotion and memory words were nearly invisible in students’ journals. In light of this, we then proposed a 3-category scheme consisting of cognition, evaluation and mix in which emotion and memory were not put in. Below are detailed descriptions of eligible reflective thinkers for each type: