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41.
The purpose of this study is to identify student expectations for course workload and teacher availability and to assess whether teacher nonverbal immediacy influences these student expectations. Based on a sample of 198 students at a large public university enrolled in a required general education hybrid communication course, students were willing to complete more work than the current course requires, which is comparable to other general education hybrid communication courses in the USA. Additionally, students have moderate to high expectations for teacher availability. Student perceptions of teacher nonverbal immediacy were positively correlated with students’ willingness to engage in their learning (reading, writing, speaking), teacher availability expectations, and tolerance for teacher unavailability.  相似文献   
42.
Using the National Research Council's inquiry continuum framework, we use a multiple-case study research design to investigate the teacher- and student-directedness of elementary preservice teachers’ planned and enacted science lessons and their pedagogical reasoning about science instruction during a semester-long science methods course. Our specific research questions were (1) What ideas do elementary preservice teachers bring to a science teaching methods course about the inquiry continuum? and (2) How do their ideas about the inquiry continuum change over the course of the semester through engaging in planning, enactment, and reflection upon science instruction? Participants’ course artifacts (journals, reflective teaching assignments, and lesson plan rationales), interviews, and field observations of their enacted science lessons served as data for this study. Findings show that although the preservice teachers began the semester defining inquiry as highly student-directed, their ideas and definitions broadened over the course of the semester to include and embrace more teacher-directed forms of inquiry. Their early science lessons were more student-directed but, as they encountered challenges engaging in inquiry-based instruction and increasingly emphasized students’ learning needs, they began to plan and enact lessons that were more teacher-directed. Teacher education programs need to explicitly emphasize these variations of inquiry as a core component of supporting preservice teachers’ learning to teach science as inquiry.  相似文献   
43.
Elementary students should have opportunities to develop scientific models to reason and build understanding about how and why plants depend on relationships within an ecosystem for growth and survival. However, scientific modeling practices are rarely included within elementary science learning environments and disciplinary content is often treated as discrete pieces separate from scientific practice. Elementary students have few, if any, opportunities to reason about how individual organisms, such as plants, hold critical relationships with their surrounding environment. The purpose of this design-based research study is to build a learning performance to identify and explore the third-grade students’ baseline understanding of and their reasoning about plant–ecosystem relationships when engaged in the practices of modeling. The developed learning performance integrated scientific content and core scientific activity to identify and measure how students build knowledge about the role of plants in ecosystems through the practices of modeling. Our findings indicate that the third-grade students’ ideas about plant growth include abiotic and biotic relationships. Further, they used their models to reason about how and why these relationships were necessary to maintain plant stasis. However, while the majority of the third-grade students were able to identify and reason about plant–abiotic relationships, a much smaller group reasoned about plant–abiotic–animal relationships. Implications from the study suggest that modeling serves as a tool to support elementary students in reasoning about system relationships, but they require greater curricular and instructional support in conceptualizing how and why ecosystem relationships are necessary for plant growth and development.  相似文献   
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This study investigates the relationship between concentrations of on- and off-premises alcohol outlets and rates of child abuse and neglect. Additionally, the study seeks to locate protective features of a neighborhood's built environment by investigating the potentially moderating role that access to substance abuse treatment and prevention services plays in the relationship between alcohol outlet density and child maltreatment. Using a cross-sectional design, this ecological study utilized data from 163 census tracts in Bergen County, New Jersey, on reports of child abuse and neglect, alcohol outlets, substance abuse treatment and prevention facilities, and the United States Census to investigate the linkages between socioeconomic structure, alcohol availability, and access to substance abuse service facilities on rates of child abuse and neglect. Findings indicate areas with a greater concentration of on-premises alcohol outlets (i.e., bars) had higher rates of child neglect, and those with easier access to substance abuse services had lower rates of neglect, controlling for neighborhood demographic and socioeconomic structure. Additionally, the relationship between on-premises alcohol outlet density and rates of child neglect was moderated by the presence of substance abuse service facilities. A greater concentration of off-premises outlets (i.e., liquor stores) was associated with lower rates of physical abuse. Findings suggest that the built environment and socioeconomic structure of neighborhoods have important consequences for child well-being. The implications for future research on the structural features of neighborhoods that are associated with child well-being are discussed.  相似文献   
46.
Media Nostalgia     
Frank Buxton and Bill Owen's The Big Broadcast: 1920-1950 (New York: Viking Press, 1972---$12.95)

Summers' A Thirty-Year History of Programs Carried on National Radio Networks in the United States (1958: reprinted by Arno Press, 1971---$10.00)

Hello Again (Mr. Jay Hickerson, 6 Koczak Court, North Haven, Conn. 06473)

Mary E. Bickel's George W. Trendle: An Authorized Biography (Jericho, N.Y.: Exposition Press, 1972---$5.00)

Joe Morella, Edward Z. Epstein, and Eleanor Clark's Those Great Movie Ads (New Rochelle, N.Y.: Arlington House, 1972--- $14.95)

Ron Goulart's Cheap Thrills: an Informal History of the Pulp Magazines (New Rochelle, N.Y.: Arlington House, 1972---$7.95)  相似文献   
47.
The article provides details of a faculty citation analysis study conducted at the University of Nevada, Las Vegas. The citation analysis analyzed faculty citations for publications published from 2002 to 2010. The citation analysis was used for a collection assessment project and continues to be used, along with other data to help assist with collection management decisions.  相似文献   
48.
Despite the expectation that all students should achieve high academic standards, content area instruction and English for speakers of other languages instruction for English language learners (ELLs) have traditionally been conceptualized as separate domains, resulting in educational inequities for ELLs. This is because effective instruction to promote academic achievement for ELLs requires integration of content and language. Such inequities are more pronounced in urban schools where ELLs are disproportionately represented. In science education, research on instructional interventions to simultaneously promote science and English proficiency of ELLs has begun to emerge in recent years. Grounded in this emerging research literature, we offer specific instructional strategies to integrate science and English proficiency for ELLs in five domains: (a) literacy strategies with all students, (b) language support strategies with ELLs, (c) discourse strategies with ELLs, (d) home language support, and (e) home culture connections.  相似文献   
49.
Grounded in Hallidayan perspectives on academic language, we report on our development of an educative science assessment as one component of the language-rich inquiry science for English-language learners teacher professional learning project for middle school science teachers. The project emphasizes the role of content-area writing to support teachers in diagnosing their students’ emergent understandings of science inquiry practices, science content knowledge, and the academic language of science, with a particular focus on the needs of English-language learners. In our current school policy context, writing for meaningful purposes has received decreased attention as teachers struggle to cover large numbers of discrete content standards. Additionally, high-stakes assessments presented in multiple-choice format have become the definitive measure of student science learning, further de-emphasizing the value of academic writing for developing and expressing understanding. To counter these trends, we examine the implementation of educative assessment materials—writing-rich assessments designed to support teachers’ instructional decision making. We report on the qualities of our educative assessment that supported teachers in diagnosing their students’ emergent understandings, and how teacher–researcher collaborative scoring sessions and interpretation of assessment results led to changes in teachers’ instructional decision making to better support students in expressing their scientific understandings. We conclude with implications of this work for theory, research, and practice.  相似文献   
50.
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