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61.
Patrick W. Thompson Marilyn P. Carlson Jason Silverman 《Journal of Mathematics Teacher Education》2007,10(4-6):415-432
We examine the role of tasks that have the intended effect of teachers re-conceiving the mathematics they teach as comprising a coherent body of meaningful ideas. We ground our discussion in ideas of trigonometry and modular functions and draw from a professional development research project to illustrate our approach. In this project, many teachers experienced dissonance that was rooted in their commitments to their curricular knowledge of trigonometry. Teachers who built new meanings into a coherent whole were those who coordinated them at a micro level. Teachers who saw implications of their own reasoning for student learning were also successful at expressing that reasoning in natural language. We saw a similar pattern in the case of teachers' creation of meanings for action and process conceptions of mod(f(x),g(x)). Teachers who gained insight into implications of their own activities for student learning were the teachers who reasoned at a micro level in regard to the meaning of mod, who coordinated that meaning with a covariational perspective on the behavior of functions, and who expressed that coordination in natural language. We conclude that a primary feature of tasks that promote teachers' construction of coherent mathematical meanings is that they support an overall effort to have teachers engage in the coordination of meanings in the context of explaining significant ideas and relationships. 相似文献
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Marilyn Steinbach 《Discourse: Studies in the Cultural Politics of Education》2014,35(1):104-115
Based on interviews with eight adult immigrants to Montreal, this article explores how discourses from their cultures of origin interact with discourses in the host culture to influence the process of identity construction during their acculturation to the host society. Drawing on sociocultural theory and psychological concepts of identity development, the roles of the often conflicting discourses from two different societies are analyzed in terms of their influences on the identity construction of these adult immigrants. The most prevalent recurring theme from the interview data concerned what participants referred to as shyness. The meanings of this theme and its political, economic, and sociocultural implications are discussed. Interview data from this study indicate the importance of sociocultural, political, and economic elements of the discourses of one's society of origin which could be taken into consideration in order to create a more inclusive host society. 相似文献
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This study examined abstract syntactic categorization in infants, using the case of grammatical gender. Ninety‐six French‐learning 14‐, 17‐, 20‐, and 30‐month‐olds completed the study. In a preferential looking procedure infants were tested on their generalized knowledge of grammatical gender involving pseudonouns and gender‐marking determiners. The pseudonouns were controlled to contain no phonological or acoustical cues to gender. The determiner gender feature was the only information available. During familiarization, some pseudonouns followed a masculine determiner and others a feminine determiner. Test trials presented the same pseudonouns with different determiners in correct (consistent with familiarization gender pairing) versus incorrect gender agreement. Twenty‐month‐olds showed emerging knowledge of gender categorization and agreement. This knowledge was robust in 30‐month‐olds. These findings demonstrate that abstract, productive grammatical representations are present early in acquisition. 相似文献
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Gifted children and adolescents can display behavioral characteristics similar to those exhibited by children and adolescents who have been diagnosed with attention-deficit hyperactivity disorder (ADHD), leading to potential issues with misdiagnosis. The overlapping characteristics between giftedness and ADHD are often seen as anecdotal or to only exist in theory, such as that explained by Dabrowski's theory of positive disintegration and his notion of overexcitabilities. There is a paucity of empirical data to support this perceived relationship between ADHD and overexcitabilities. This study provides empirical support for a relationship between ADHD and overexcitabilities within a sample of gifted adolescents. Implications are discussed. 相似文献