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991.
Opportunities to read and analyze others?? writing or to observe readers as they analyze writing might enhance one??s own sense of audience and improve one??s own writing. This mixed-methods study investigated whether reader and observer activities in comparison to writing practice activities affected fifth-grade students?? persuasive writing and revising. After writing a first draft of a persuasive letter, 87 fifth-grade students were randomly assigned to one of three conditions: being a reader, observing readers, or practicing writing. The reader group read and discussed three persuasive letters, considering whether they were persuasive and why and selecting the most persuasive. The observer group listened to the reader group??s discussions and took notes; then they had their own discussion to generate a list of criteria for what made the letters persuasive. The practice-writing control group practiced writing persuasive letters. Afterwards, all groups revised their first drafts. The reader group produced second drafts that were of better quality and contained more evidence of audience awareness than the control group. The observer group did not differ from either group. The groups did not differ on a transfer task occurring 1-week later. The authors discuss implications for designing writing curriculums that utilize reader and observer activities. 相似文献
992.
Jenny M. Dauer Jennifer H. Doherty Allison L. Freed Charles W. Anderson 《CBE life sciences education》2014,13(3):397-409
We investigate how students connect explanations and arguments from evidence about plant growth and metabolism—two key practices described by the Next Generation Science Standards. This study reports analyses of interviews with 22 middle and high school students postinstruction, focusing on how their sense-making strategies led them to interpret—or misinterpret—scientific explanations and arguments from evidence. The principles of conservation of matter and energy can provide a framework for making sense of phenomena, but our results show that some students reasoned about plant growth as an action enabled by water, air, sunlight, and soil rather than a process of matter and energy transformation. These students reinterpreted the hypotheses and results of standard investigations of plant growth, such as van Helmont''s experiment, to match their own understanding of how plants grow. Only the more advanced students consistently interpreted mass changes in plants or soil as evidence of movement of matter. We also observed that a higher degree of scaffolding during some of the interview questions allowed mid-level students to improve their responses. We describe our progress and challenges developing teaching materials with scaffolding to improve students’ understanding of plant growth and metabolism. 相似文献
993.
Three experiments explored the significance of deontic properties (involving rights and obligations) in representations of social categories. Preschool-aged children ( M = 4.8), young school-aged children ( M = 8.2), and adults judged the centrality of behavioral, psychological, and deontic properties for both familiar (Experiments 1 and 2, N s = 50 and 52, respectively) and novel (Experiment 3, N = 64) social categories. Preschool-aged children were the most consistent in treating deontic properties as central: Knowing a person's social category membership was more informative about obligations than about behavioral frequencies or psychological preferences. Adults treated deontic properties as central to some categories but also recognized a set that was primarily predictive of psychological dispositions. The results argue for the significance of deontic properties in the development of social cognition. 相似文献
994.
995.
Three similar six-element key press sequences were practiced under blocked or random practice schedules with acquisition conducted on one day and retention and transfer on the next day. The task required participants to type, as quickly as possible, one of three 6-element sequences as observed on a computer monitor. In blocked practice, participants completed all practice in one repeated sequence before the next repeated sequence was introduced. In random acquisition practice, the three repeated sequences were randomly presented to the participants. The data suggest that random practice results in participants adopting a uniform response structure, while blocked practice allows participants to exploit unique sequential aspects of the individual tasks. This finding suggests that random practice may not be as effective as blocked practice when one of the tasks being practiced together can be optimized through the development of a unique response structure. 相似文献
996.
Shirl J. Hoffman Charles H. Imwold John A. Koller 《Research quarterly for exercise and sport》2013,84(1):33-40
Abstract The throwing and prediction performances of first, third and fifth grade boys and girls were analyzed within the framework of a four-part taxonomy originally conceived by Fitts (1965). Throwing performance was assessed under task conditions which varied the motion states of the thrower's body and the target (stationary or moving) by use of a dual pendulum apparatus. Accuracy scores were highest in a condition where both body and target were stationary, and lowest where both body and target were moving. Task conditions requiring motion of only target or of body were of intermediate difficulty, and scores for these tasks were not significantly different from each other. There was evidence of learning across trial blocks for all tasks, but no indication that rates of acquisition differed for the task types. Likewise, significant main effects were observed for age levels but no age X task type interactions were disclosed. Boys were more accurate than girls across task conditions, most noticeably on the two most difficult tasks. Comparison of subjects' ability to predict, from a stationary body position, the coincidence of the moving target with a standard reference point, and their ability to predict the coincidence of their moving body with the same reference point revealed lower error scores on the former prediction task. 相似文献
997.
Students in a college nonscience majors' biology course took tests designed to reveal their conceptions of respiration and photosynthesis before and after course instruction. Even though most students had taken at least a full year of biology, serious misconceptions persisted. Most students gave definitions of respiration, photosynthesis, and food which were markedly different from those generally accepted by biologists. These incorrect definitions were associated with more fundamental misunderstandings about how plants and animals function. Most students could not explain how animal cells use either food or oxygen. They understood plants as vaguely analogous to animals, taking in food through their roots instead of mouths. Previous biology instruction seemed neither to improve student performance on the pretest nor to prepare them to master these conceptions during the course. Course instruction did improve student's understanding, but misconceptions persisted for many students. These results raise fundamental questions about the effectiveness of curriculum and instruction in current high school and college biology courses. 相似文献
998.
Charles G. Mcclintock 《Journal of Experimental Education》2013,81(2):21-26
To develop a procedure for determining the dominance of various social motives operative in classroom settings and to provide a didactic method for illustrating social motives, college students were requested to rank their preferences among alternative distributions of own and others’ scores on a test covering the content of a course. It was found that outcomes that maximized own scores were preferred by a majority of students, but only in that instance where their highest score was slightly better than that obtained by their classmates. Less than a majority of students preferred the same score which maximized their own absolute outcome when it was slightly lower than their classmates’ scores. Evidence was found in the preference data for the presence of the social motivational orientations of individualism (own gain maximization), competition (relative gain maximization), cooperation (joint gain maximization), and equity (equality maximization). The verbal rationales provided by students for their preferences were strongly consistent with the motivational properties of preferred own and other outcomes. 相似文献
999.
Geir Lieblein Tor Arvid Breland Charles Francis Edvin Østergaard 《The Journal of Agricultural Education and Extension》2013,19(1):27-40
Abstract Purpose: This article examines and evaluates the potential contributions from action learning and action research with stakeholders to higher education in agriculture and food systems. Design/Methodology/Approach: The research is based on our experiences over the past two decades of running PhD courses and an MSc degree programme in Agroecology in Norway that have attracted students from the Nordic region and other countries. Findings: We conclude that collaborating with non-university stakeholders as an integral part of a university course or programme serves four main purposes, two directly related to learning and two that can be considered as practical implications. Firstly, it enables learning about complex topics, a learning that cannot be achieved by merely reading or listening. Secondly, the real-life flare of such activities provides the students with enthusiasm and energy to delve into theory. Practical Implications: Thirdly, students collaborating with non-university stakeholders connect university and society. Fourthly, this process builds social relevance and civic engagement not found in conventional courses or curricula. Originality/Value: The article presents conceptual foundations and practical implementation of a unique educational programme in agriculture and food systems. 相似文献
1000.
Margaret J. Snowling Hannah M. Nash Debbie C. Gooch Marianna E. Hayiou-Thomas Charles Hulme Wellcome Language Reading Project Team 《Child development》2019,90(5):e548-e564
We followed children at family risk of dyslexia and children with preschool language difficulties from age 3½, comparing them with controls (N = 234). At age 8, children were classified as having dyslexia or Developmental Language Disorder (DLD) and compared at earlier time points with controls. Children with dyslexia have specific difficulties with phonology and emergent reading skills in the preschool period, whereas children with DLD, with or without dyslexia, show a wider range of impairments including significant problems with executive and motor tasks. For children with both dyslexia and DLD, difficulties with phonology are generally more severe than those observed in children with dyslexia or DLD alone. Findings confirm that poor phonology is the major cognitive risk factor for dyslexia. 相似文献