The question of these reflections is if among those content-dependent instructional conditions necessary to attain conceptual understanding, those belonging to the affective domain of teaching and learning must be included in Pedagogical Content Knowledge (PCK), the special amalgam of content knowledge and knowledge of general pedagogy that a teacher needs to be the best possible teacher (Shulman, 1986). The author of these reflections has not developed the research needed yet, but suggests finding out a solution for that question is important for the PCK construct and for the Scholarship of Teaching and Learning (SoTL).