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Reform‐based curriculum materials have been suggested as a mechanism to make inquiry‐based instruction more prevalent in secondary science classrooms, specifically when accompanied by comprehensive professional development (Loucks‐Horsley, Hewson, Love, & Stiles, 1998 ; Powell & Anderson, 2002 ). This research examines the implementation of a reform‐based high school chemistry curriculum in a large, urban school district. We explicitly consider the role of the teachers' knowledge and beliefs in their implementation of the reform‐based chemistry curriculum, as well as school level factors. Qualitative and quantitative data were collected in the form of beliefs interviews and classroom observations from 27 high school chemistry teachers. Analysis of the data revealed that implementation of the curriculum was strongly influenced by the teachers' beliefs about teaching and learning, and the presence of a supportive network at their school sites. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 44: 883–907, 2007 相似文献
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As a result of changing national values and unrest, demographic and population shifts, and ever-changing admissions practices and policies, implementing a diversity and cultural-competency agenda within university settings has become a priority across the UK, Europe, and US. Furthermore, public institutions across the UK, EU, and US are now more racially and ethnically diverse than ever [Snyder, T. D., C. Debray, and S. A. Dillow. 2016. ‘Digest of Education Statistics 2016.’ NCES 2016-006. National Centre for Education Statistics; Sursock, Andree. 2015. Trends 2015: Learning and Teaching in European Universities. European University Association. Accessed October 28 2017. www.eua.be/Libraries/publicationshomepage-list/EUA_Trends_2015_web.]. Yet, cultural competency efforts on campuses remain largely under theorized [Bezrukova, K., K. A. Jehn, and C. S. Spell. 2012. “Reviewing Diversity Training: Where We Have Been and Where We Should Go.” Academy of Management Learning and Education 11 (2): 207–227] and diffuse [Sue, S., D. C. Fujino, L. T. Hu, D. T. Takeuchi, and N. W. Zane. 1991. ‘Community Mental Health Services for Ethnic Minority Groups: A Test of the Cultural Responsiveness Hypothesis.’ Journal of Consulting and Clinical Psychology 59 (4): 533–540]. This article seeks to outline an agenda for this work, highlighting outcomes of cultural competency learning and underscoring the role of campus leadership in the development of supportive characteristics. These characteristics include attention to shared knowledge, professional learning at all levels of the organization, inclusive instructional methods, integration with other campus initiatives, and inclusivity of diversity foci. Posited are six supportive conditions for successful implementation. 相似文献
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A number of numerical codes have been written for the problem of finding the circle of smallest radius in the Euclidean plane that encloses a finite set P of points, but these do not give much insight into the geometry of this circle. We investigate geometric properties of the minimal circle that may be useful in the theoretical analysis of applications. We show that a circle C enclosing P is minimal if and only if it is rigid in the sense that it cannot be translated while still enclosing P. We show that the center of the minimal circle is in the convex hull of P. We use this rigidity result and an analysis of the case of three points to find sharp estimates on the diameter of the minimal circle in terms of the diameter of P. 相似文献
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Lance D. Fusarelli 《Peabody Journal of Education》2013,88(3):215-235
In their search for magic bullets to fix failing schools, policymakers seldom directly address powerful ecological factors impacting schooling. This article identifies several major demographic, societal, economic, and educational changes and trends in U.S. society over the past several years; analyzes their impact on schoolchildren; and offers a series of policy recommendations for public sector reform initiatives that show promise in ameliorating these conditions, which in turn would improve the educational prospects for all children, particularly those most at risk. 相似文献
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Edgerly Hallie S. Kruse Jerrid W. Wilcox Jesse L. 《Research in Science Education》2022,52(5):1467-1480
Research in Science Education - Many nature of science (NOS) studies have demonstrated that teachers can improve their understandings of NOS with explicit and reflective instruction; however, the... 相似文献
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Research in Science Education - Explicit-reflective nature of science (NOS) instruction has demonstrated a positive impact on student learning. Although explicit-reflective NOS instruction often... 相似文献
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Examining preservice teacher content and pedagogical content knowledge needed to teach reading in elementary school
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Recently, increased attention has been placed on the importance of having knowledgeable and skilled teachers in order to influence reading achievement. Yet many international reports suggest that large numbers of children are not learning to read. How can we better prepare teachers with the necessary knowledge to teach reading? The current study examined the reading instructional knowledge of elementary education preservice teachers (N = 87) from two teacher education programmes. Programme A required five reading methods courses and Programme B required two methods courses. Findings indicate that the preservice teachers presented fairly robust levels of knowledge in the areas of phonological awareness, phonics, comprehension and vocabulary. However, we found statistically significant differences in knowledge based on the programme attended and the number of courses completed. Suggestions for improving reading teacher education are provided. 相似文献
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