How Dragging Changes Students’ Awareness: Developing Meanings for Eigenvector and Eigenvalue
Canadian Journal of Science, Mathematics and Technology Education - Tập 14 Số 3 - Trang 223-237 - 2014
Tóm tắt
The complementary use of the theories of instrumental genesis and shifts of attention enabled me to obtain insights into students’ understandings of the concepts of eigenvector and eigenvalue. My analysis suggests that the use of different dragging modalities can provide evidence of shifts in structure of a student’s attention and consequently can reveal processes involved in her understanding of the concepts. Inversely, shifts in structure of her attention can result in her use of different dragging modalities. I also identified a newdragging modality—intentionally dragging—that is, to drag a point with the intention of producing a certain configuration.
Tài liệu tham khảo
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