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971.
问题解决中策略的变化:一项微观发生研究 总被引:7,自引:0,他引:7
以30名小学三年级儿童为被试,以一种特殊的方程问题为材料,采用微观发生法,先后进行了5次测查,收集了解题后的口语报告资料,从策略变化的路线、速率、广度、来源以及变化模式的多样性等方面详细探讨了问题解决策略的变化过程。结果发现,在面临新的问题时,被试缺乏相应知识和专门的解题策略,这时以使用多种常规策略以及错误策略为主;此后,当被试建构起对问题的正确表征时,就以使用正确策略为主,甚至发现了非常有技巧性和领域专门性的快捷策略,这时策略的数量明显减少;在面临难度较大的迁移题目时,快捷策略的使用率又降低,而更多借助于常规策略。可见,策略的获得是一个由错误到正确、由多种尝试到选择其一、由一般到专门的演化过程,这主要是一个学生自主建构的过程,当然也受到正式和非正式教育提供的知识的影响。值得说明的是,快捷策略的获得受到问题呈现模式的影响。总是呈现相同题目的单一模式有助于快捷策略的发现,而在混合训练中,插入不同性质的题目会干扰快捷策略的发现;但是,当面临迁移问题时,单一训练相比于混合训练的优势会消失。此外,正确使用常规策略是发现快捷策略的前提。 相似文献
972.
Michael Cavanaugh 《Zygon》2003,38(4):763-767
Abstract. The forty‐ninth annual IRAS conference on Star Island pursued the science‐religion dialogue primarily in terms of two concepts: nature and transcendence. Robust Yes responses and likewise robust No responses were presented by both scientists and theologians to the theme question, “Is Nature Enough? The Thirst for Transcendence.” After this introductory survey of the definitional landscape, representative papers from the conference are presented. 相似文献
973.
Richard Double 《Metaphilosophy》2003,34(4):510-523
Abstract: In this article I consider when the question of whether entities exist subjectively (only in the minds of subjects) or objectively (in themselves, independently of the minds of subjects) is important, both theoretically and practically. I argue that when it comes to the metaphysics underlying three types of moral questions, broadly conceived, the subjectivity question does not matter practically, although it is widely thought to matter. Subjectivism does not matter in these moral questions in the same way(s) it matters in some nonmoral metaphysical issues. The moral questions I consider are the meaning of life, normative ethics, and the free‐will problem. The nonmoral issues I address are the existence of God, the traditional mind/body problem, and personal identity. I explain the difference by noting that certain metaphysical issues on the fact side of the fact/value distinction impinge on persons' lives more prominently than do the metaphysics behind the three moral questions. 相似文献
974.
Susana Nuccetelli 《Metaphilosophy》2003,34(4):524-536
Abstract: A durable question in Latin American thought is whether it could amount to a characteristically Latin American philosophy. I argue that if, as is now widely conceded, there is a role for philosophical analysis in thinking about problems that arise in applied subjects, such as bioethics, environmental ethics, and feminism, then why not also in Latin American thought? After all, the focus of Hispanic thinkers has often been upon the issues that arise in their own experiences of the world, and they make up a diverse group of peoples related by very idiosyncratic ethnic and historical connections. I believe that, given some appropriate criteria, the existing corpus of works by Latin American thinkers is a part of a distinctive philosophy. 相似文献
975.
We investigate a contractionless naive set theory, due to Grisin [11]. We prove that the theory is undecidable. 相似文献
976.
Three hypotheses concerning the association between instrumental (I) and expressive (E) beliefs about aggression and physical aggression were assessed among a sample comprising students (n=40), women from a domestic violence shelter (n=29), and male prisoners (n=46), all of whom had committed at least one act of physical aggression to a partner. Participants completed an adapted version of the EXPAGG [Archer and Haigh (1997a): British Journal of Social Psychology 35:1–23] to measure I and E beliefs about aggression, the Conflict Tactics Scale (CTS) [Straus (1979): Journal of Marriage and the Family 41:75–88] for themselves and their partner, and measures of fear and injuries resulting from partner violence. I beliefs predicted self‐reported physical aggression to the partner, most CTS acts of physical aggression, and injuries to the partner, with only minor and limited associations for E beliefs. Correlations for the student and prisoner samples, and for men and women, showed different strengths. The findings supported a general link between I beliefs and aggression but offered no support for the predictions that the link would be restricted to men or to men who showed a persistent pattern of violence to their partners. Aggr. Behav. 29:41–54, 2003. © 2003 Wiley‐Liss, Inc. 相似文献
977.
978.
F. Gordon Greene 《Journal of Near-Death Studies》2003,21(4):223-240
In this paper, I elaborate the hyperspatial implications of the fractal-scaling scheme that I introduced previously. Four case examples where out-of-body experiencers reported heightened and amplified visual capacities are correlated with this explanatory model. Three of these cases are identified as including an additional hyperspace signifier, the reported capacity to see through solid and opaque physical obstructions. One of these cases included yet another hyperspace signifier, the reported capacity to pass through such obstructions. Additional evidence supportive of this thesis is drawn from the literature on ecstatic experience, including out-of-body, near-death, and other varieties of mystical or visionary experience, and from that on psychedelic experience. Yet other hyperspace signifiers reported by ecstatic voyagers are also considered, including sensations of seeing outward spherically in 360 degrees and of seeing on all sides of three-dimensional solids simultaneously. 相似文献
979.
David Braybrooke 《Argumentation》2003,17(4):513-535
On the approach to discussions of policy choices that treats such discussions as instances of issue-processing, the joint use of the logic of questions and the logic of rules gives precise formulation to two sorts of issues. To one sort of issue belong issue-circumscribing questions; to another sort, issues-simplicter, which consist of disjunctions of policy proposals – so many proposed social rules – that are answers, in the case of each disjunction, to a given issue-circumscribing question. Work in pragma-dialectics can take over the issue-processing approach; and by doing so add to the pragma-dialectical repertory further dimensions in the analysis of issues and in protocol-narratives of discussion. The analysis and narratives would now include accounts of how issue-circumscribing questions generate initial standpoints and how discussions sometimes end with compromises between standpoints. Further research questions follow about transformations of issues and the comparison of successive rounds of discussion. A narrative of one period of discussion during `the War on Drugs' in the United States illustrates these points. 相似文献
980.
Understanding families as systems 总被引:2,自引:0,他引:2
In this article, we discuss recent research that has arisen from theoretical and conceptual models that use a systems metaphor for understanding families. We suggest that research stimulated by such models leads social scientists in new and important directions in understanding the social and emotional development of children in their families. These models view development as resulting from the dynamic transactions across multiple levels of family systems, which regulate a child's behavior. Thus, these models are important in considering multiple influences on development and adaptation. 相似文献