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Instructional Science - K-12 classroom settings are not yet incorporating emerging technologies such as ubiquitous computing, augmented reality, nor even touch surfaces, despite the significant... 相似文献
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James D. Slotta 《学习科学杂志》2013,22(1):151-162
This article responds to an article by A. Gupta, D. Hammer, and E. F. Redish (2010) that asserts that M. T. H. Chi's (1992, 2005) hypothesis of an “ontological commitment” in conceptual development is fundamentally flawed. In this article, I argue that Chi's theoretical perspective is still very much intact and that the critique offered by Gupta et al. is itself based on a flawed interpretation of Chi's theory. The purpose of this article is to address that misconception of Chi's work and to clarify her overall theoretical perspective. I begin by reviewing Chi's theory of ontological commitments, making an important comment about her position on the nature of expert conceptualizations. I review the methodological approaches used by J. D. Slotta and M. T. H. Chi (2006) to measure ontological commitments and comment on the instructional implications of Chi's theory. I then address the misconception held by Gupta et al. about Chi's work and call for more empirical research to tease apart the differences between Chi's view of “parallel ontologies” and Gupta et al.'s view of “flexible ontologies.” 相似文献
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Access to the internet increases variability in media and source authority for students who generally rely on teachers and textbooks. Some internet sources are more credible than others (e.g., a New York Times article on the web vs. a private citizen's homepage). Some sources are impressively produced with graphics and media-enhancements, while others are unadorned text. We explore the question of how source authority and media-enhancement impact students' interpretation of evidence as they conduct a Knowledge Integration Environment project as part of integrated science instruction in a culturally diverse high school. 相似文献
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