Student reflections offer valuable insights into their learning processes and how they achieve the learning objectives set by instructors. Such insights are particularly beneficial in large-class environments commonly observed in engineering education, where it is challenging for a single instructor to gauge each student’s progress. Through qualitative analysis of self-reflections collected over a semester, this study explores the sources of confusion and interest among first-year students in an undergraduate introductory physics course for engineering and science majors. We address the following research questions specifically in a lecture-based introductory physics course: (1) What aspects of physics lectures confuse students? (2) What aspects of physics lectures interest students? (3) How are students' confusion and interest related to each other? The study proceeded in several phases. First, two researchers reviewed the student reflection data and relevant literature. Next, we developed an a priori coding scheme based on four categories of constituent knowledge: (1) understanding of physics systems, (2) execution of technical procedures when applying physics principles, (3) understanding of physics principles, and (4) understanding of physics concepts. We added two additional categories: (5) instructional reflections and (6) metacognitive thinking. Following this, the researchers independently coded 10% of the reflections and refined the coding scheme through iterative discussions, generating subcodes for each category. Using the finalized scheme, we then independently coded all reflections. We are investigating if there are specific types of physics knowledge that confuse and interest students in this context. Also, we divided students into three groups based on their academic achievement to investigate if there are differences in aspects of physics knowledge that students found confusing and interesting between these three groups. Enhanced understanding of students’ confusion and interest will assist physics educators in refining course content and instructional strategies to address student needs better.
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