首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   625篇
  免费   14篇
教育   450篇
科学研究   25篇
各国文化   6篇
体育   14篇
信息传播   144篇
  2023年   3篇
  2022年   6篇
  2021年   4篇
  2020年   12篇
  2019年   25篇
  2018年   31篇
  2017年   30篇
  2016年   28篇
  2015年   18篇
  2014年   16篇
  2013年   140篇
  2012年   19篇
  2011年   21篇
  2010年   16篇
  2009年   22篇
  2008年   23篇
  2007年   19篇
  2006年   12篇
  2005年   11篇
  2004年   17篇
  2003年   10篇
  2002年   9篇
  2001年   7篇
  2000年   5篇
  1999年   7篇
  1998年   10篇
  1997年   7篇
  1996年   8篇
  1995年   12篇
  1994年   11篇
  1993年   6篇
  1992年   7篇
  1991年   12篇
  1990年   5篇
  1989年   4篇
  1988年   8篇
  1987年   2篇
  1986年   4篇
  1985年   3篇
  1984年   2篇
  1983年   2篇
  1980年   4篇
  1978年   2篇
  1972年   2篇
  1967年   2篇
  1923年   1篇
  1922年   1篇
  1920年   2篇
  1900年   1篇
  1862年   1篇
排序方式: 共有639条查询结果,搜索用时 15 毫秒
61.
This exploration of the role of information in helping people to develop and sustain feelings of belonging, or a sense of place, is based on a study that investigated the reasons for the high population turnover in the Northern Territory of Australia. The Northern Territory along with Darwin, its capital, has a number of unusual characteristics including geographical isolation. A key component of the theoretical framework for the research focuses on social information, which has similarities to the more commonly termed everyday life information. The specific concern is with the kind of information that helps people connect to a community and is clearly linked with social networking. The sample for the major empirical component for the article was recruited at Darwin's Mindil Beach Market. In telephone phone interviews with those who had agreed to participate, participants discussed how they learned about Darwin and the Northern Territory, and their views of Darwin as a place to live. Interpersonal contacts, including at the Market and at special events, were most often mentioned in relation to information, confirming literature findings on the importance of family and friends as an information source. Other sources were newspapers and physical markers around the City of Darwin. The conclusion is that the processes of social networking, which work well for some residents, could be enhanced through the use of information grounds, a concept widely discussed in the library and information science literature. Obvious information grounds in Darwin, where the usual processes could be enhanced by the distribution of information by formal information providers, include Mindil Beach Market and the special events for which Darwin is renowned.  相似文献   
62.
Research suggests that undergraduate students learn more from lab experiences that involve longer-term projects. We have developed a one-semester laboratory sequence aimed at sophomore-level undergraduates. In designing this curriculum, we focused on several educational objectives: 1) giving students a feel for the scientific research process, 2) introducing them to commonly used lab techniques, and 3) building skills in both data analysis and scientific writing. Over the course of the semester, students carry out two project-based lab experiences and write two substantial lab reports modeled on primary literature. Student assessment data indicate that this lab curriculum achieved these objectives. This article describes the first of these projects, which uses the biflagellate alga Chlamydomonas reinhardtii to introduce students to the study of flagellar motility, protein synthesis, microtubule polymerization, organelle assembly, and protein isolation and characterization.  相似文献   
63.
In this paper, I critically examine the discourse surrounding response to intervention (RTI), a US-based education reform that has garnered a considerable amount of attention (as well as controversy) in a very short amount of time. A multi-pronged reform effort, RTI is a tiered approach to delivering instructional intervention to students at risk, an on-going and systematic model of monitoring student performance, as well as an alternative to the ability/achievement discrepancy model for identifying learning disabilities. In this paper, I argue, however, that RTI is not so much a reform but a tactic, aimed at returning to the status quo of segregated special education and reinvigorating many of the foundational assumptions of traditional special education practice.  相似文献   
64.
Higher educational institutions place a priority on the retention and timely graduation of students. Previous literature has identified transfer students to have unique concerns and that these concerns vary by major. While previous retention research has reported factors that influence students’ decision to remain in college, many of these studies treated transfer status as a homogenous group. The university in this study enrolls a high percentage of transfer students, and a large percentage of these transfers students enroll in Criminal Justice classes and become Criminal Justice majors. To determine if there are unique risk factors among Criminal Justice transfer students, this study uses multiple measures of transfer status to identify factors that might impact a students’ (1) university involvement, (2) GPA, (3) satisfaction with and sense of belonging to their university and (4) thereby influence their decision to remain in school. The proposition that transfer students as compared to native (nontransfer) students differ on how they face university challenges was also examined. While several variables were found to be important to students’ adjustment to the University, transfer status does not appear to be significant risk factor. Implications of the results are discussed.  相似文献   
65.
U.S. Supreme Court Justice Thurgood Marshall once argued that informed opinion would oppose the death penalty for all but those who support it for retributive reasons. We examine the validity of these claims with data from a series of one‐group pre‐test–post‐test designs which stem from a formalized learning outcomes assessment for several courses on the death penalty. Results show solid, but imperfect, support for these claims. The analysis then proceeds by profiling those who changed their opinions consistent with these claims, those who did not change their opinions, and those whose opinions changed in a manner opposite to these claims.  相似文献   
66.
Over the past several decades, there has been a wealth of research identifying factors and conditions of persistence toward graduation for first-year students and more recently transfer students. While previous research recognizes these critical periods, some recent literature suggests that students may face a similar transitional period later in their academic careers as they advance into their major areas of study. To date, there has been a dearth of information exploring upper-level students' success and commitment to graduation. Exploring this later transition might provide a critical link to understanding the graduation gap between those students who persist to graduation and those who drop out. The purpose of this research was to review the intervention programs proscribed by the literature, design an intervention program, and examine the impact of the program on criminal justice students during this advanced transitional phase of their college careers. It examined the direct and indirect effects of the intervention program on both retention and the antecedents of successful retention while controlling for other relevant influences identified in the literature. The results indicated that the intervention had small, but significant positive direct and indirect effects on academic integration, commitment to the university, and graduating in a timely fashion. Policy implications are discussed.  相似文献   
67.
This article explores heterogeneity as fundamental to learning. Inspired by Bakhtin's notion of heteroglossia, a design team consisting of an experienced classroom teacher and 2 researchers investigated how a class of 3rd and 4th graders came to understand disciplinary points of view on heat, heat transfer, and the particulate nature of matter. Through a series of planned and unplanned encounters, official versions of the Second Law of Thermodynamics and the particulate view of matter were juxtaposed with varied domains of experience of heat transfer and phase change in water. We analyze the children's discourse to examine how they populated these phenomena with meaning and what they learned in the process. We conclude by describing key principles and a conundrum that emerged from this research.  相似文献   
68.
Seventy-six children ages 3 to 5 were individually read two storybooks that had been specially formatted to contain salient printed words within the text, and illustrations and text on left or right-facing pages. The reader pointed to each word while reading to half of the children. After each book, children were asked to recognize elements of the illustrations and the specially formatted text elements from among a set of foils. Videotaped sessions were coded for the time children spent looking toward the pages with print versus illustrations. Analyses showed that the percentage of time looking at print was less than 2% in the no-pointing condition but increased with age. Pointing to the words increased print-looking time for all age groups and print target recognition for 4-year-olds. After controlling for receptive vocabulary, visual memory, and maturation associated with these scores, emergent orthography and letter-word identification predicted time looking at print and recognition of the print elements.  相似文献   
69.
This investigation was designed to socially validate the characterization and operational definitions of collaboration as described in the professional literature and quantitatively identify salient features of collaboration. The study was conducted in two phases. The first phase employed an adelphi methodology asking practitioners to define and describe the collaborative process. Open-ended surveys were sent to teachers, special education teachers, administrators, and related service providers at the building, district, and state levels in 3 states representing distinct national regions. A content analysis team identified 35 thematic units that were used to create a second instrument for the second phase of the study, a factor analysis. Surveys were sent to teachers, special educators, administrators, and related service providers at the building, district, and state levels in 7 states. A factor analysis revealed 4 factors as salient components of collaboration. Results of the investigation socially validated most concepts of collaboration articulated in the literature. Overall, practitioners have a pragmatic view of the process of collaboration coupled with an emphasis on the collaborative ethic. Each identified factor is described and discussed. This article concludes with implications of these findings for professional preparation programs.  相似文献   
70.
Teacher education programs are being encouraged to collaborate with K‐12 partners to develop and implement contextually rich field experiences that integrate methods course instruction with public school practices. As a result, we outline four models of integrating methods instruction and field experiences and raise the question “How does the classroom and school context of the field experience influence what prospective teachers learned in the methods courses?” This study examines the way two different cohorts of prospective elementary teachers who learned to teach in two different contexts define their own social studies pedagogical content knowledge. The students' espoused philosophies of education offer insight into how different models of integrated field experiences may impact on their beliefs about social studies teaching. Through this study we raise questions that should be considered in constructing methods courses linked to field experiences and suggest Bronfenbrenner's model as a tool for looking at these contextual influences.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号