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91.
Jeffrey Craig 《Educational Studies in Mathematics》2018,98(1):57-76
The aim of this study is to better understand the notion of early algebraic thinking by describing differences in grade 4–7 students’ thinking about basic algebraic concepts. To achieve this goal, one test that involved generalized arithmetic, functional thinking, and modeling tasks, was administered to 684 students from these grades. Quantitative analysis of the data yielded four distinct groups of students demonstrating a wide range of performance in these tasks. Qualitative analysis of students’ solutions provided further insight into their understanding of basic algebraic concepts, and the nature of the processes and forms of reasoning they utilized. The results showed that students in each group were able to solve different number and types of tasks, using different strategies. Results also indicated that students from all grades were present in each group. These findings suggest the presence of a consistent trend in the difficulty level across early algebraic tasks which may support the existence of a specific developmental trend from more intuitive types of early algebraic thinking to more sophisticated ones. 相似文献
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The purpose of this study was to develop and verify the Index of Science Reading Awareness (ISRA) based on a model of an efficient, successful interactive-constructive science reader and three independent metacognitive awareness domains. Several researchers have noted the need for efficient, reliable, and valid measures of metacognition. ISRA data collected on 532 students (Grades 4–8) were analyzed using factor analyses, linear structural modeling, and analyses of variance (ANOVAs) to help verify the model and the test. The factor analyses and linear structural modeling indicated that these data did not support the assumption about the three independent metacognitive awareness domains, but suggested that the model and the test were structured around the design features of science reading, science text, and science reading strategies. One-way ANOVAs indicated significant, predicted reading ability and gender differences but unexpected grade-level differences. The composite metacognitive awareness data indicated that most Grade 4–8 students have surface knowledge about science reading, science text, and science reading strategies, and indicated specific targets for explicit science reading instruction. © 1998 John Wiley & Sons, Inc. J Res Sci Teach 35: 27-51, 1998. 相似文献
97.
Chengshan Wang Robert M Hazen Qiuming Cheng Michael H Stephenson Chenghu Zhou Peter Fox Shu-zhong Shen Roland Oberhnsli Zengqian Hou Xiaogang Ma Zhiqiang Feng Junxuan Fan Chao Ma Xiumian Hu Bin Luo Juanle Wang Craig M Schiffries 《国家科学评论(英文版)》2021,8(9)
Current barriers hindering data-driven discoveries in deep-time Earth (DE) include: substantial volumes of DE data are not digitized; many DE databases do not adhere to FAIR (findable, accessible, interoperable and reusable) principles; we lack a systematic knowledge graph for DE; existing DE databases are geographically heterogeneous; a significant fraction of DE data is not in open-access formats; tailored tools are needed. These challenges motivate the Deep-Time Digital Earth (DDE) program initiated by the International Union of Geological Sciences and developed in cooperation with national geological surveys, professional associations, academic institutions and scientists around the world. DDE’s mission is to build on previous research to develop a systematic DE knowledge graph, a FAIR data infrastructure that links existing databases and makes dark data visible, and tailored tools for DE data, which are universally accessible. DDE aims to harmonize DE data, share global geoscience knowledge and facilitate data-driven discovery in the understanding of Earth''s evolution. 相似文献
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Craig Ross R. Robert Orr 《Educational technology research and development : ETR & D》2009,57(2):251-265
Troubleshooting skills are integral for the Information Technology professional. In order to address faculty concerns that
students were not effectively learning required troubleshooting skills, a standardized troubleshooting methodology (the DECSAR
Method) was created and integrated into the standard curriculum of a college information technology program. Components of
troubleshooting were measured using a pre-/post-testing approach with the Social Problem Solving Inventory—Revised. Testing
indicated improvement in several areas of troubleshooting reinforced by DECSAR. The context in which the troubleshooting methodology
was applied was associated with post-test change.
相似文献
R. Robert OrrEmail: |
99.
Howard P. Parette Craig Blum Nichole M. Boeckmann 《Early Childhood Education Journal》2009,37(1):5-12
As assistive technology applications are increasingly implemented in early childhood settings for children who are at risk
or who have disabilities, it is critical that teachers utilize observational approaches to determine whether targeted assistive
technology-supported interventions make a difference in children’s learning. One structured strategy that employs observations
and which has powerful child progress monitoring implications is the concurrent time series probe approach. Requiring multiple
performance measures of a child engaged in a targeted task over time—both with and without a specific assistive technology
device—the concurrent time series probe approach can be used to evaluate the effectiveness of assistive technology tools in
supporting skill acquisition in the classroom. This approach is described in the context of a case study, with accompanying
explanations of how to interpret data and make decisions regarding the effectiveness of the technology. 相似文献
100.
Pippa Craig Jill Gordon Rufus Clarke Wendy Oldmeadow 《Assessment & Evaluation in Higher Education》2009,34(5):537-551
This study aimed to provide evidence to guide decisions on the type and timing of assessments in a graduate medical programme, by identifying whether students from particular degree backgrounds face greater difficulty in satisfying the current assessment requirements. We examined the performance rank of students in three types of assessments and also calculated the relative risk of failure in the summative assessments for four cohorts over all four years of a four‐year graduate medical programme. Our findings suggest that early summative assessment may disadvantage the very students who create the diversity that the faculty values, particularly if methods such as Single Best Answer questions are used, unless students are provided with additional support in bridging their knowledge gap. Use of assessment methods such as Modified Essay Questions and Objective Structured Clinical Examinations appears to be more justifiable on educational grounds. 相似文献