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131.
In order to acquire a theory of biology, children must acquire knowledge about living kinds. Although many studies have shown that preschool children do not accurately classify living kinds and do not use appropriate properties when asked to decide whether something is a living kind, recent work has shown that 3- and 4-year-olds do know something about biological growth. The ability of kinds to heal through regrowth was used in this paper as a measure of children's implicit understanding that plants and animals can be grouped together. In 3 experiments, children were told that animals, plants, and artifacts had been damaged and were asked whether the objects could heal through regorwth and whether a person could mend them. In all studies, children were sensitive to ontological kind, 4-year-olds realized that both plants and animals can regrow but that artifacts must be fixed by human intervention. 3-year-olds were less knowledgeable but did realize that artifacts cannot regrow. Overall, children showed some biological knowledge, implicity grouping plants and animals together and differentiating them from artifacts. 相似文献
132.
133.
The relations of effortful control and impulsivity to children's resiliency and adjustment 总被引:12,自引:0,他引:12
Eisenberg N Spinrad TL Fabes RA Reiser M Cumberland A Shepard SA Valiente C Losoya SH Guthrie IK Thompson M 《Child development》2004,75(1):25-46
The unique relations of effortful control and impulsivity to resiliency and adjustment were examined when children were 4.5 to 8 years old, and 2 years later. Parents and teachers reported on all constructs and children's attentional persistence was observed. In concurrent structural equation models, effortful control and impulsivity uniquely and directly predicted resiliency and externalizing problems and indirectly predicted internalizing problems (through resiliency). Teacher-reported anger moderated the relations of effortful control and impulsivity to externalizing problems. In the longitudinal model, all relations held at T2 except for the path from impulsivity to externalizing problems. Evidence of bidirectional effects also was obtained. The results indicate that effortful control and impulsivity are distinct constructs with some unique prediction of resiliency and adjustment. 相似文献
134.
This study examined teaching assistants' perceptions of various instructional issues and explored whether their perceptions were affected by nationality, gender, and academic discipline. The study generated significant, positive results. Logistic regression with dummy coding revealed significant predictors of teaching assistants' instructional roles, teaching style, instructional methods, communication strategies, and potential problems. Discussion of the results, implications, and recommendations for future research are included.where she coordinates the campus-wide TA training and development program 相似文献
135.
Written and oral communications and the processes of writing and reading are highly valued within the scientific community; scientists who communicate well are successful in gaining recognition and support from members of their own communities, the research funding agencies, and the wider society. Yet how do scientists achieve this proficiency? Are expert scientists equally expert writers in and of science? Do scientists' perceptions of the nature of science influence their writing strategies and processes, and their beliefs about the role of writing in knowledge construction? This study used a questionnaire and semistructured interviews to document these perceptions, strategies, processes, and beliefs in a nonrandom sample of Canadian university scientists and engineers. The results indicate that the scientists subscribed to a contemporary evaluativist view of science, used common writing strategies, held similar beliefs about scientific writing and nonscientific writing, and agreed that writing generates insights and clarifies ambiguity in science. The engineers held a different view of technology than the common views of science or technology as simply applied science. These findings were slightly different than those found for American scientists from a large land‐grant university. © 2004 Wiley Periodicals, Inc. J Res Sci Teach 41: 338–369, 2004 相似文献
136.
We propose that children's reasoning about others' visual perspectives is guided by simple heuristics based on a perceiver's line of sight and salient features of the object met by that line. In 3 experiments employing a 2-perceiver analogy task, children aged 3-6 were generally better able to reproduce a perceiver's perspective if a visual cue in the perceiver's line of sight sufficed to distinguish it from alternatives. Children had greater difficulty when the task hinged on attending to configural cues. Availability of distinctive cues affixed on the objects' sides facilitated solution of the symmetrical orientations. These and several other related findings reported in the literature are traced to children's reliance on heuristics of reasoning. 相似文献
137.
Marilyn Fleer 《Environmental Education Research》2002,8(2):137-154
Children aged 5-12 years were asked to think about what their environment would look like when they were grandparents. Children from two regions of Australia (the Australian Capital Territory and rural New South Wales) drew and discussed their visions for the future. This paper examines the data and discusses the implications for science education, technology education and environmental education. Futures education is discussed within the context of the differing ways that the issues identified can be addressed within schools. 相似文献
138.
Tower of Hanoi has become a popular tool in cognitive and neuropsychology to assess a set of behaviors collectively referred to as executive functions. Substantial variability in performance on the Tower of Hanoi (TOH) disk-transfer task among normally functioning young adults, and potential contributions to these individual differences, were examined. In this expanded 60-problem version of the four-disk TOH, the degree to which problem administration (blocked vs. random) and strategy knowledge influenced overall performance and changes in accuracy across problems was examined. Eighty-seven college students were randomly assigned to a Blocked Group (problems given in ascending order of move-length) and a Random Group (problems given in a random order). After administration of the TOH task, participants described their problem solving and these verbal protocols were analyzed with regard to four elements of a strategic approach to problem solving. Problem administration order demonstrated no effect on task performance or on expressed strategy knowledge; however, strategy knowledge did predict performance on the TOH. An expected decrease in performance across trials was observed in the Blocked Group, and an increase in accuracy in the Random group indicated a learning effect. Strategy knowledge did not interact with these changes in performance across the items. These results suggest that external cues do not influence performance on the TOH to the same extent as individual differences in strategy induction relatively early in the problem solving process. 相似文献
139.
140.
Curiosity as a personality variable influencing learning in a learner controlled lesson with and without advisement 总被引:2,自引:0,他引:2
Marilyn P. Arnone Barbara L. Grabowski Christopher P. Rynd 《Educational technology research and development : ETR & D》1994,42(1):5-20
This study investigated the effect of curiosity on learning art education facts and concepts by first- and second-graders
in computer-based interactive learner control environments with and without advisement. High-curious subjects, who generally
prefer a higher degree of unfamiliarity and uncertainty, were predicted to perform better in either learner control environment
than low-curious children. All children regardless of curiosity level were expected to perform better in the advisement condition
than in the no-advisement condition. As predicted, a significant difference in achievement scores favored the high-curious
children in both conditions. Although there was no main treatment effect, exploratory analyses revealed an unpredicted significant
interaction between grade level and treatment. First-graders performed significantly better with advisement than without advisement
while second-graders performed better without. Examination of treatment usage data indicated that first-graders followed advisement
more than did second-graders. 相似文献