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21.
OBJECTIVE: Children who experience multiple victimizations (referred to in this paper as poly-victims) need to be identified because they are at particularly high risk of additional victimization and traumatic psychological effects. This paper compares alternative ways of identifying such children using questions from the Juvenile Victimization Questionnaire (JVQ). METHODS: The JVQ was administered in a national random digit dial telephone survey about the experiences of 2,030 children. The victimizations of children 10-17 years old were assessed through youth self-report on the JVQ and the victimizations of children 2-9 assessed through JVQ caregiver proxy report. RESULTS: Twenty-two percent of the children in this sample had experienced four or more different kinds of victimizations in separate incidents (what we term poly-victimization) within the previous year. Such poly-victimization was highly associated with traumatic symptomatology. Several ways of identifying poly-victims with the JVQ produced roughly equivalent results: a simple count using the 34 victimizations screeners, a count using a reduced set of only 12 screeners, and the original poly-victimization measure using follow-up questions to identify victimizations occurring during different episodes. CONCLUSION: Researchers and clinicians should be taking steps to identify poly-victims within the populations with which they work and have several alternative ways of doing so.  相似文献   
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Toward a Learning Technologies knowledge network   总被引:3,自引:0,他引:3  
The National Science Foundation-funded Center for Innovative Learning Technologies (CILT) is designed to be a national resource for stimulating research and development of technology-enabled solutions to critical problems in K-14 science, math, engineering and technology learning. The Center, launched at the end of 1997, is organized around four themes identified as areas where research is likely to result in major gains in teaching and learning, and sponsors research across disciplines and institutions in its four theme areas. CILT brings together experts in the fields of cognitive science, educational technologies, computer science, subject matter learning, and engineering. It engages business through an Industry Alliance Program and is also training postdoctoral students. CILT's founding organizations are SRI International's Center for Technology in Learning, University of California at Berkeley (School of Education and Department of Computer Science), Vanderbilt University's Learning Technology Center, and the Concord Consortium. Through its programs, CILT seeks to reach beyond these organizations to create a web of organizations, individuals, industries, schools, foundations, government agencies, and labs, that is devoted to the production, sharing and use of new knowledge about how learning technologies can dramatically improve the processes and outcomes of learning and teaching. This paper describes the rationale and operations of the Center, and first-year progress in defining a set of CILT partnership projects with many other institutions that came out of our national theme-team workshops. Roy Pea, of SRI International, is Director of CILT. Marcia Linn (U. California, Berkeley), John Bransford (Vanderbilt University), Barbara Means (SRI International), and Robert Tinker (Concord Consortium), serve as CILT's coprincipal investigators. Sherry Hsi (Ubiquitous Computing) and Sean Brophy (Technology and Assessment Models) are among the first group of CILT Postdoctoral Fellows. Jeremy Roschelle (SRI International) and Nancy Songer (University of Michigan) are CILT theme-team leaders. Roy Pea and Marcia Linn would like to thank the Spencer Foundation for support during their year at the Center for Advanced Study in the Behavioral Sciences, Stanford University, in which they developed the CILT concept with the other authors. CILT is funded by National Science Foundation grant #CDA-9720384. Pea and Linn would also like to acknowledge contributions to this article by the many authors of CILT partnership project proposals, and by theme-team leaders. The authors thankfully acknowledge Donna Baranski-Walker for her many contributions to developing the CILT Industrial Alliance Program while serving as its Director in 1998.  相似文献   
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Reviews     

The Development of Scientific Thinking Skills. Deanna Kuhn, Eric Amsel, and Michael O'Loughlin, Academic Press, 1988. 249 pp.

Understanding the Representational Mind, Josef Perner, MIT Press, 1991. 348 pp.

Literacy as Involvement: The Acts of Writers and Readers, and Texts. Deborah Brandt. Carbondaie: Southern Illinois, 1990. 159 pp.

Dialogue, Dialectic, and Conversation: A Social Perspective on the Function of Writing. Gregory Clark. Carbondale: Southern Illinois, 1990. 93 pp.

Hypermedia and Literary Studies. Ed. Paul Delany and George P. Landow. Cambridge: MIT P, 1991. 352 pp.

Writing Space: The Computer, Hypertext, and the History of Writing. Jay David Bolter. Hillsdale: Lawrence Erlbaum, 1991. 258 pp. Also from Erlbaum, Writing Space: A Hypertext for Macintosh.

Writing and Speaking in Business. Gretchen N. Vik, Clyde W. Wilkinson, and Dorothy C. Wilkinson. 10th ed. Homewood: Irwin, 1990. 636 pp.

Communication for Management and Business. Norman B. Sigband and Arthur H. Bell. 5th ed. Glenview: Scott, 1989. 783 pp.

Business Communication Today. Courtland L. Bovee and John V. Thill. 2nd ed. New York: Random, 1989. 680 pp.

Guidelines for Preparing Proposals: A Manual on How to Organize Winning Proposals. Roy Meador. Chelsea: Lewis, 1985. 116 pp.  相似文献   
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The authors defined optimal experience as a functional state of a relatively high level of concentration, time distortion, satisfaction, and enjoyment (Csikszentmihalyi, 1992 Csikszentmihalyi, M. (1992). The flow experience and its significance for human psychology. In M. C. I. S. Csikszentmihalyi (Ed.), Optimal experience: Psychological studies of flow in consciousness. London, England: Cambridge University Press. [Google Scholar]) and collected data through the Day Reconstruction Method. In three random days, 147 fifth-grade students answered questionnaires for each school event in the previous day resulting repeated data from 2,288 episodes. Several hierarchical linear models were conducted. The authors found that elementary students perceived better quality of optimal experience during break time versus classes taught by activity, seatwork or lecture methods. Unexpectedly, more optimal experience was reported in the events when students perceived themselves as having high skill but low challenge, contradictory to the original expectation of skill–challenge balance. Four additional flow conditions were more effective than primary flow condition and instructional methods in predicting optimal experience. Finally, optimal experience varied much more across event-episodes than among individuals meaning that teachers have rooms to improve students' optimal experience in elementary school days.  相似文献   
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The work of Bishop and Anderson (1990) plays a major role in educators' understanding of evolution education. Their findings remind us that the majority of university students do not understand the process of evolution but that conceptual change instruction can be moderately effective in promoting the construction of a scientific understanding. The present article details two studies that represent an effort to focus on and define the limits of the Bishop and Anderson (1990) study. Study A describes a close replication of the work of Bishop and Anderson (1990) using the same conceptual-change teaching module to teach a unit on evolution to students enrolled in a biology course for nonmajors. Study B, a case of comparison, used the same evaluation instrument used in Bishop and Anderson (1990) and Study A, but high school students were the participants and the instruction was based on the inquiry approach to science. Like Bishop and Anderson (1990), Study A showed that the amount of prior instruction and students' beliefs in evolution were not found to be large factors in students' use of scientific conceptions. Unlike the original study, the students in Study A showed only a meager increase in their use of scientific conceptions for evolution. In Study B, students in the experimental group showed significant increases in their use of scientific conceptions. These findings suggest a need to investigate more closely the teachers' theories of learning, their reliance on instructional conversations, and the amount of time devoted to the topic of evolution as we study conceptual change in this area.  相似文献   
29.

This study describes the trends in students' explanations of biological change in organisms. A total of 96 student volunteers (8 students from each of 2nd, 5th, 8th, and 12th grades from 3 localities) were interviewed individually and each student was presented a series of graphics depicting natural phenomena. Students' explanations to questions of how something occurred were assigned to one of three categories (responses addressing how something occurred, why something occurred, and 'I don't know'). While the number of responses in each category was roughly equivalent in prominence across grade levels, the majority of students were unable to offer a causal explanation of how a phenomena occurred. An unexpected phenomenon was the students' predilection to redirect the interview question so they could answer them. If asked a how question, as they were in every interview instance, 32% the students answered with a 'why' response. The way biology is taught, the structure of biology or/and how we learn it could shed some light into this phenomenon and has implications for science educators.  相似文献   
30.

We have taken to heart the call of critical race theorists and critical Whiteness scholars to open up a White discourse on White racism. As White, female, teacher educators, we endeavored to openly address Whiteness and White racism with our White students to help them become more aware of the advantages and biases inherent in their positionality as White teachers. As we did this, we were critically aware of both the negative and positive possible outcomes of our endeavors. Throughout our work with our students and our subsequent reflections on the results, we were able to establish ways of speaking about Whiteness that moved our students, and ourselves, to a more critical, more empowered understanding of race and Whiteness.  相似文献   
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