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71.
Todd Campbell Rebecca Zuwallack Max Longhurst Brett E. Shelton Paul G. Wolf 《International Journal of Science Education》2013,35(11):1815-1848
This research examines how science teaching orientations and beliefs about technology-enhanced tools change over time in professional development (PD). The primary data sources for this study came from learning journals of 8 eighth grade science teachers at the beginning and conclusion of a year of PD. Based on the analysis completed, Information Transmission (IT) and Struggling with Standards-Based Reform (SSBR) profiles were found at the beginning of the PD, while SSBR and Standards-Based Reform (SBR) profiles were identified at the conclusion of PD. All profiles exhibited Vision I beliefs about the goals and purposes for science education, while only the SBR profile exhibited Vision II goals and purposes for science teaching. The IT profile demonstrated naïve or unrevealed beliefs about the nature of science, while the SSBR and SBR profiles had more sophisticated beliefs in this area. The IT profile was grounded in more teacher-centered beliefs about science teaching and learning as the other two profiles revealed more student-centered beliefs. While no beliefs about technology-enhanced tools were found for the IT profile, these were found for the other two profiles. Our findings suggest promising implications for (a) Roberts' Vision II as a central support for reform efforts, (b) situating technology-enhanced tools within the beliefs about science teaching and learning dimension of science teaching orientations, and (c) revealing how teacher orientations develop as a result of PD. 相似文献
72.
Since school voucher funds are public, policymakers fiercely debate how those funds should be spent. A goal of many decision-makers is to ensure that every private school option is “high-quality” through program accountability regulations. Private schools, however, decide whether to participate in a private school choice program and likely factor the amount of state regulations into that decision. This paper estimates the program participation decisions of the private schools in D.C., Indiana, and Louisiana. We specifically examine the impacts of voucher regulations on the supply-side of voucher programs. We employ a linear probability model to examine how school quality, as measured by revenue, tuition, enrollment, and Great School Review scores, is associated with program participation for schools. Results indicate that higher tuition-levels and larger cohort enrollments, conditions normally associated with high quality schools, identify schools that are less likely to participate in voucher programs. We also find a consistent negative relationship between Great Schools Review score and the school participation decision in all three locations; however, these coefficients are not statistically significant. State fixed effects reveal that private schools in D.C. and Louisiana, the two states that have higher regulatory burdens, are less likely to participate in voucher programs. 相似文献
73.
Obesity is a serious, prevalent, and recurring disorder that affects many school children. There are numerous physical, and perhaps psychosocial, difficulties associated with being overweight. This article examines three major types of intervention strategies that have been utilized in school-based weight-reduction programs. Behavior modification, dietary control/nutrition education, and physical activities have been successfully combined in multificeted obesity interventions to produce modest weight loss. Improved research designs, long-term follow-up, further examination of social supports, and prevention strategies are needed. 相似文献
74.
Ronald de Wolf 《Ethics and Information Technology》2017,19(4):271-276
This paper considers the potential impact that the nascent technology of quantum computing may have on society. It focuses on three areas: cryptography, optimization, and simulation of quantum systems. We will also discuss some ethical aspects of these developments, and ways to mitigate the risks. 相似文献
75.
76.
Clifton W. Wolf 《Annals of dyslexia》1967,17(1):32-39
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79.
Automaticity, retrieval processes, and reading: a longitudinal study in average and impaired readers 总被引:20,自引:0,他引:20
In this longitudinal investigation, the development of word-retrieval speed and its relationship to reading was studied in 72 average and 11 severely impaired readers in the kindergarten to grade 2 period (5-8 years). Subjects received a battery of 3 reading measures and 4 continuous naming tests with varied stimulus requirements. Results indicated that the relationship of retrieval speed to reading is a function of development and the correspondence between higher- and lower-level processes in the specific retrieval and reading measures. As automaticity in retrieval developed in average readers, naming-speed/reading relationships moved from strong, general predictions to highly differentiated ones. The strongest correlations were between naming speed for graphological stimuli and lower-level reading tasks. Impaired readers performed slower than average readers on all naming measures across all years, particularly on graphological symbols. 3 dyslexic subgroups emerged: the largest was globally impaired across all naming rate and reading tasks; 2 smaller subgroups had early specific, retrieval-rate deficits and dissociated reading deficits. 相似文献
80.
Rebecca Wolf Jennifer Morrison Amanda Inns Robert Slavin Kelsey Risman 《Journal of research on educational effectiveness》2020,13(2):428-447
AbstractRigorous evidence of program effectiveness has become increasingly important with the 2015 passage of the Every Student Succeeds Act (ESSA). One question that has not yet been fully explored is whether program evaluations carried out or commissioned by developers produce larger effect sizes than evaluations conducted by independent third parties. Using study data from the What Works Clearinghouse, we find evidence of a “developer effect,” where program evaluations carried out or commissioned by developers produced average effect sizes that were substantially larger than those identified in evaluations conducted by independent parties. We explore potential reasons for the existence of a “developer effect” and provide evidence that interventions evaluated by developers were not simply more effective than those evaluated by independent parties. We conclude by discussing plausible explanations for this phenomenon as well as providing suggestions for researchers to mitigate potential bias in evaluations moving forward. 相似文献