Circuits and pathways of understanding: 'I can't believe we're actually figuring out some stuff'

Piaget's studies of young children and adolescents are evidence that people construct their own understanding and that action and reflection is at the heart of developing understanding. Yet, most physics teaching is didactic in nature and physics students are rarely free to develop their own understanding of formal curriculum topics.;Consequently, interpretive descriptions of how physics students can develop subject matter understanding both in response to their interactions with the objects that make up a subject matter and their active reflection on those interactions are scarce. In this thesis, using a series of classroom vignettes, I reconstruct some of how two groups of high school physics students came to understand the curriculum topic electrical circuits through their exploration of batteries, bulbs, and wires and their active reflections on those explorations. The data sources that inform the classroom vignettes include the transcribed audiotapes of classroom dialogue, student journals and activity sheets, and the fieldnotes that I made during each class session. The study took place in the classroom of Kris Newton, whose teaching of physics is informed by her experiences with teaching-research, a methodology developed by Eleanor Duckworth. Duckworth's experiences with Jean Piaget and Barbel Inhelder in Geneva, Switzerland and her experiences developing curriculum with the Elementary Science Study were both formative for her in developing the notion of teaching-research. The classroom is located in an ethnically diverse urban high school with a student body of approximately 2,000. I conducted the study during the spring of 1997 and 1998. At the time of the study all but two of the students were in their junior year of high school.