The conjunction of three events has encouraged me to devote significant time to thinking about the pedagogical framework in my introductory courses. The three events were: doing a workshop addressing the Advanced Placement restructuring of the Physics B course with a stronger focus on critical thinking, finding out that TPT was planning an issue about the “science and art” of teaching, and dealing with a course that I haven't taught in about a decade, where the students behaved very differently from students in the same course in the past.

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