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The purpose of this paper is to present an analysis of the difficulties faced by students when working with different representations of vectors, planes and their intersections in \(\mathbb {R}^{3}\). Duval’s theoretical framework on semiotic representations is used to design a set of evaluating activities, and later to analyze student work. The analysis covers three groups of undergraduate students taking introductory courses in linear algebra. Different types of treatments and conversions are required to solve the activities. One important result shows that, once students choose a register to solve a task, they seldom make transformations between different registers, even though this facilitates solving the task at hand. Identifying these difficulties for particular transformations may help teachers design specific activities to promote students cognitive flexibility between representation registers. 相似文献
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Research in Science Education - The first phase of this multiphase study involves modeling of college students’ thinking of friction at the microscopic level. Diagnostic interviews were... 相似文献
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Edgar F. Smith 《Journal of The Franklin Institute》1889,128(6):490-492
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Andrew Edgar 《国际体育史杂志》2015,32(15):1804-1807
Philosophy as a discipline is typically characterized through the use of rigorous argument and analysis, and the clarification of the meaning of concepts. Philosophical problems are thus resolved, not through the appeal to empirical evidence, but by identifying inconsistent and confusing patterns of thought and reflection. This paper will clarify the nature of a philosophical methodology by explicating the relationship between the philosophy of sport and the core traditional areas of philosophy, metaphysics, epistemology, axiology and logic. 相似文献
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David Buckingham 《English in Education》1999,33(1):3-12
This article offers a critical overview of the cultural and educational benefits and dangers of digital media for young people. It argues that public debates on this issue have veered from utopian hype to moral panic. In contrast, the author argues for a more measured account of how young people appropriate such technologies in the context of their everyday lives. The article goes on to provide brief accounts of the author's previous research on children's engagement with computer games, and on their creative uses of multimedia in the home, which illustrate this approach. The article concludes with some broad principles which might guide future policy in this field. 相似文献