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Alan Chalmers Lloyd Ackert Pnina Abir-Am Maria Trochatos Carolyn R. Miller Nicolas Rasmussen Roy Macleod Ingo Brigandt Lorna Barrow Ian Maclean Elof Axel Carlson Susan E. Cozzens Cindy Klestinec Patricia O'Grady Alison Bashford Jim Endersby Jonathan Simon David Mercer David Oldroyd Suzanne Verderber Peter Slezak Rachel Cooper Patricia Fara Ravi Arvind Palat Peder Anker Bernhard Fritscher David Branagan 《Metascience》2002,11(3):329-429
538.
Eva Kellner Annica Gullberg Iiris Attorps Ingvar Thor��n Roy T?rneberg 《International Journal of Science and Mathematics Education》2011,9(4):843-866
A crucial issue for prospective teachers (PTs) in their education is to develop pedagogical content knowledge (PCK; i.e. how
to make a topic comprehensible to pupils). However, research has shown that PTs may have tacit ideas about teaching that act
as filters preventing consideration of unfamiliar and discrepant ideas. These ideas must be elicited and taken into consideration
in order to be modified. Therefore, PTs’ explicit conceptions may constitute a valuable resource in teacher education. The
aim of this study was to investigate PTs’ ideas about pupils’ difficulties, at a topic-specific level, upon beginning the
teacher education programme. The “Lesson Preparation Method” was used in four case studies to elicit the conceptions of 32
PTs regarding pupils’ difficulties in four specific science and mathematics topics: plant growth, gases, equations and heat
and temperature. In all four topic groups (n = 5 – 11), there was a variety of initial conceptions about pupils’ difficulties, which were categorised into two to five
topic-specific categories. Although, initially, PTs may not have expressed any notions about pupils’ difficulties, conceptions
were elicited by using the Lesson Preparation Method. Furthermore, we found that the initial ideas corresponded with earlier
research on pupils’ difficulties, which could provide a potential resource when creating a scaffolding context in teacher
education programmes where PCK development is stimulated. 相似文献
539.
Roy?B.?ClarianaEmail author Michael?B.?Wolfe Kyung?Kim 《Educational technology research and development : ETR & D》2014,62(5):601-616
This investigation applies two approaches for representing and comparing text structures as undirected network graphs to describe the influence of narrative and expository lesson texts on readers’ knowledge structure elicited as free recall. Narrative and expository lesson texts and undergraduate participants’ free recall essays (n = 90) from a study by Wolfe and Mienko (Br J Educ Psychol 77, 541–564, 2007) were reanalyzed for lexical proximity as sequential occurrence of selected important terms in the text and as actual minimum distances between these terms. The proximity data were then rendered as Pathfinder networks for analysis. Compared to human-rater benchmark measures, the convergent validity of the sequential approach (range of r = .53 to .83, median r = .70) was a little better than that of the minimum distance approach (.51 to .80, median r = .67). Further, we anticipated that the lesson text structure would be reflected in the text structure of the free recall essays, but this was not observed. On average, the essays in all three lesson conditions tended to converge on a sequential expository structure. Further, compared to the expository lesson texts, the narrative lesson text had a distinctly different influence on posttest recall essay text structures. Overall then, the sequential occurrence approach appears to provide a reasonably good, automatically derived method for representing and comparing lesson texts and participants’ essays as network graphs. If further confirmed and fully automated, there is a wide range of application of such measurement approaches for learning and research. 相似文献
540.
Winko W. An Vincy Wong Roy T.H. Cheung 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(4):375-383
Back injury is common in rowers. Asymmetrical lower limb reaction force on the foot stretchers during rowing may compromise trunk biomechanics and lead to back injury. However, such a mechanism remains putative. Therefore, this study examined lower limb reaction force in experienced rowers with and without a history of back injury. Six rowers who suffered from back injury for more than one week in the past year and another 19 rowers who were never injured performed maximal exertion rowing on a fixed-head rowing machine for 30 strokes. Peak force, average and peak loading rate of the lower limb reaction force during the middle 10-stroke were recorded using strain-gauge transducers placed at the foot stretchers. Asymmetries and intra-limb variability were quantified as asymmetry indices and coefficients of variation, respectively. No significant asymmetry was observed in all selected kinetic parameters between the injured and healthy rowers (p = 0.448–0.722, Hedges' g = 0.162–0.310). Subgroup analyses also did not reveal any significant kinetic differences between injured and healthy scullers or sweepers (p = 0.194–0.855, Hedges' g = 0.203–0.518). Rowers with a history of back injury, regardless of the rowing types, did not demonstrate greater lower limb reaction force asymmetry when compared with healthy rowers. 相似文献