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231.
Neil Duncan 《Assessment & Evaluation in Higher Education》2007,32(3):271-283
A small‐scale action research project was carried out on students' feedback histories on one undergraduate module. Old grades and comment sheets were collected and analysed by staff for recurring advice to individual students on the target module. This advice was then synthesized to create simple individual learning plans for the students' forthcoming assignments, in other words old feedback was applied to a new task. A number of additional teaching and learning interventions were provided for participants and the statistical outcomes showed a small gain in the grades achieved against those who did not participate. Interviews were held with participants that indicated a number of reasons why feedback was not optimized to assist further learning. 相似文献
232.
INFORMING A LEARNING PROGRESSION IN GENETICS: WHICH SHOULD BE TAUGHT FIRST,MENDELIAN INHERITANCE OR THE CENTRAL DOGMA OF MOLECULAR BIOLOGY? 总被引:1,自引:0,他引:1
Ravit Golan Duncan Moraima Castro-Faix Jinnie Choi 《International Journal of Science and Mathematics Education》2016,14(3):445-472
The Framework for Science Education and the Next Generation Science Standards in the USA emphasize learning progressions (LPs) that support conceptual coherence and the gradual building of knowledge over time. In the domain of genetics there are two independently developed alternative LPs. In essence, the difference between the two progressions hinges on conjectures regarding the accessibility of Mendelian versus molecular genetics, the conceptual dependencies between them, and the order in which they should be taught. The discrepancies between the two progressions stem, in part, from gaps in the current research base. To address the question of whether learning one aspect of genetics, Mendelian or molecular, supports the learning of the other, we analyzed correlations between students’ test scores on item subsets for Mendelian and molecular genetics on written pre-post assessments. Students were seventh graders who received intensive instruction in Mendelian and molecular genetics. We found that students’ pretest scores on the molecular items were moderately correlated with their posttest scores on the Mendelian genetics item set (but not the other way around). This suggests that molecular genetics understandings may bootstrap the learning of Mendelian genetics. Implying that, in contrast to prevalent practice, molecular genetics should be taught before Mendelian genetics. 相似文献
233.
Rats were exposed to an autoshaping procedure in which each lever-contact or leverpress delayed trial offset and, hence, food delivery. Yoked subjects received identical trial-food pairings as did delay subjects. This procedure was studied at two delay values (2.5 and 10.0 sec) in experimentally naive rats and those which had previously received 25 sessions of autoshaping. The delay procedure retarded the acquisition of autoshaped responding in naive subjects and reduced responding for experienced subjects. Yoked subjects responded at higher levels than did delay subjects throughout training. 相似文献
234.
Andrea Allard Evelyn Bransgrove Maxine Cooper Jill Duncan Maree Macmillan 《Asia-Pacific Journal of Teacher Education》1995,23(2):185-194
This article reports on an investigation of primary and early‐childhood teacher‐education students’ understandings and beliefs about the influence of gender on their careers and life choices. The research was undertaken by a collaborative team from three Victorian universities. We took as our premiss that if teacher‐education students are to be effective in promoting gender inclusiveness throughout the schooling culture, they must first reflect on the operation of the sex/gender system in their own lives. A range of viewpoints are included about the gendered understandings commonly held by the tertiary students surveyed. The resulting insights enabled us to suggest more effective strategies for fostering gender awareness in teacher education. 相似文献
235.
Teaching aquatic science as inquiry through professional development: Teacher characteristics and student outcomes
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Kanesa Duncan Seraphin George M. Harrison Joanna Philippoff Paul R. Brandon Thanh Truc T. Nguyen Brian E. Lawton Lisa M. Vallin 《科学教学研究杂志》2017,54(9):1219-1245
We present an inquiry‐based, aquatic science professional development (PD) for upper‐elementary, middle, and high school teachers and examine changes in student outcomes in light of participating teachers’ characteristics and the grade band of the students. Our study lends support to the assertion that inquiry‐ and content‐focused PD, paired with classroom implementation, can effectively improve student learning. Our findings indicate that students improved in their nature of science (NOS) and aquatic science content knowledge and that these changes depended in some ways on the participating teachers’ characteristics and adherence to the program. The students’ improvements were amplified when their teachers adhered more closely to the PD activities during their classroom implementation. The teachers’ previous science PD experience and pre‐PD understanding of inquiry‐based teaching also explained some of the variability in student growth. In both NOS and content, students of teachers with less prior science‐PD experience benefited more. Grade band also explained variation in student outcomes through interactions with teacher‐characteristic variables. In high school, students of teachers with lower pre‐PD inquiry knowledge appeared to learn more about NOS. Our results suggest that inquiry and content training through PD may minimize disparities in teaching due to inexperience and lack of expertise. Our study also demonstrates the value of PD that teaches a flexible approach to inquiry and focuses on underrepresented, interdisciplinary content areas, like aquatic science. © 2017 Wiley Periodicals, Inc. J Res Sci Teach 54:1219–1245, 2017 相似文献
236.
English teachers select texts for the edifying qualities they possess: a good poem, novel or film can act both as a window looking out over different lives and as a powerful mirror for reflection. When teachers reflect on their professional practice, however, they generally look to education theory, to research or to action learning strategies. But if great works of literature strengthen a student’s empathetic, critical and reflective capacities, they can do the same for the English teachers who prescribe them. The article does not advocate for a rejection of pedagogical expertise in favour of pure literary criticism, but it does consider that these two aspects of English teaching can be brought together for the purposes of professional reflection and development. Using William Wordsworth’s lyric ‘We Are Seven’ as an example, it aims to illustrate how a close reading of the poem leads naturally and effectively from an analysis of content to more general considerations of why and how we teach. 相似文献
237.
Ethnic Differences in Children's Intelligence Test Scores: Role of Economic Deprivation, Home Environment, and Maternal Characteristics 总被引:8,自引:0,他引:8
We examine differences in intelligence test scores of black and white 5-year-olds. The Infant Health and Development Program data set includes 483 low birthweight premature children who were assessed with the Wechsler Preschool and Primary Scale of Intelligence. These children had been followed from birth, with data on neighborhood and family poverty, family structure, family resources, maternal characteristics, and home environment collected over the first 5 years of life. Black children's IQ scores were 1 SD lower than those of white children. Adjustments for ethnic differences in poverty reduced the ethnic differential by 52%. Adjustments for maternal education and whether the head of household was female did not reduce the ethnic difference further. However, differences in home environment reduced the ethnic differential by an additional 28%. Adjustments for economic and social differences in the lives of black and white children all but eliminate differences in the IQ scores between these two groups. 相似文献
238.
Duncan D. Nulty 《Assessment & Evaluation in Higher Education》2008,33(3):301-314
This article is about differences between, and the adequacy of, response rates to online and paper‐based course and teaching evaluation surveys. Its aim is to provide practical guidance on these matters. The first part of the article gives an overview of online surveying in general, a review of data relating to survey response rates and practical advice to help boost response rates. The second part of the article discusses when a response rate may be considered large enough for the survey data to provide adequate evidence for accountability and improvement purposes. The article ends with suggestions for improving the effectiveness of evaluation strategy. These suggestions are: to seek to obtain the highest response rates possible to all surveys; to take account of probable effects of survey design and methods on the feedback obtained when interpreting that feedback; and to enhance this action by making use of data derived from multiple methods of gathering feedback. 相似文献
239.
Has the challenge of unauthorized digital reproduction and distribution of copyright works been met by the use of so‐called ‘digital rights management’ (DRM) technology – and what role will DRM play in publishing, including scholarly journal and learned publishing? This article explores the legal and commercial issues surrounding DRM from its analogue origins through to the latest market developments. It argues that the implementation of DRM in other media sectors provides valuable lessons to publishers. Acknowledging the practical challenges that DRM has faced, the article suggests that whilst DRM will offer an answer to ‘the machine', it must form part of a flexible solution that adapts to the requirements of electronic publishing. 相似文献
240.
Associations between sleep and the body mass index (BMI) and overweight status of children and adolescents were estimated using longitudinal data from a nationally representative sample of 2,281 children aged 3–12 years at baseline. Controlling for baseline BMI, children who slept less, went to bed later, or got up earlier at the time of the first assessment had higher BMIs 5 years later and were more likely to be overweight. Child age moderated the relationship between bedtime and BMI. In addition, the study reports nationally representative data on the sleep habits of American children aged 3–18 years. This study underscores the likely importance of sleep on children's physical health and suggests that sleep is important for understanding childhood weight problems. 相似文献