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1.
Abstract

Using the stimulated recall of instruction methodology, we interviewed teachers and students at risk for referral to special education about their perceptions, judgments, and decision making during the course of instruction. The results of the teacher interviews suggest that teachers respond to complex collections of student cues in their decision making about students. Teachers described themselves as more frequently monitoring the at‐risk students, although their attempts to modify instruction consisted primarily of attempts to motivate these students. The at‐risk students indicated awareness that they are experiencing difficulty in class, had somewhat less understanding of how teachers attempt to help them, and responded with anger and frustration to their learning problems.  相似文献   
2.
This study investigates secondary-task interference on eye movements through learning with multimedia. We focus on the relationship between the influence of the secondary task on the eye movements of learners, and the learning outcomes as measured by retention, matching, and transfer. Half of the participants performed a spatial tapping task while studying the instructional materials, whereas the other half studied the materials, without spatial tapping. The results revealed suboptimal learning outcomes under the secondary task, which was accompanied by fewer transitions of gaze between the text and the figure. We propose that the suboptimal learning outcomes might be due to the disrupted processing of pictures, and possibly due to the less efficient integration, of the information gathered from the text and figures.  相似文献   
3.
This study investigated the effects of a family-centered intervention that involved parents in weekly assessments and daily routine activities for promoting young children’s language and behavior. Forty-one 3–5-year-old children at-risk for language and behavior problems, recruited from three developmental pre-schools, were randomly assigned to a control and an intervention group that received parent–professional support. Analyses of covariance (ANCOVAs) were used to examine whether groups differed on post-test scores on the Test of Early Language Development—Third Edition and Eyberg Child Behavior Inventory, using pre-test scores as a covariate. Results showed that children in the intervention group outperformed children in the control group on both tests. The study indicated that family-centered intervention is an effective method for empowering parents to identify and implement concrete solutions to their children’s problems, especially when done as part of a professional collaboration.  相似文献   
4.
Research in Science Education - Informal science educators’ (ISEs) work with young children has received limited attention in the literature. We investigated ISEs’ goals for...  相似文献   
5.
The complexity of learning has plagued the educational establishment for decades. Recently, ideas of complexity theory and complex adaptive systems have made headway in how we think of institutions of learning. This study developed and tested an instrument for the modeling of underlying social structures, as an element of complexity, within the physical education learning environment. Currently, there are no instruments capable of producing valid and reliable models of underlying student social networks in physical education classes. This study sought to develop and test one of the first instruments for the explicit purpose of this modeling. The Network Examination for Student Socialization was developed as a product of this effort. Testing demonstrated the Network Examination for Student Socialization is both a reliable and valid instrument for modeling underlying student social structures within physical education classes. It is hoped that in years to come, the Network Examination for Student Socialization can play a key role in the study of complexity within physical education.  相似文献   
6.
ABSTRACT

We estimated international/national temporal trends in sit-ups performance for children and adolescents, and examined relationships between national trends in sit-ups performance and national trends in health-related/sociodemographic indicators. Data were obtained by systematically searching studies reporting on temporal trends in sit-ups performance for apparently healthy 9–17 year-olds, and by examining nationally representative fitness datasets. Trends at the country-sex-age level were estimated by sample-weighted regression models relating the testing year to mean sit-ups performance. International/national trends were estimated by a post-stratified population-weighting procedure. Pearson’s correlations quantified relationships between national trends in sit-ups performance and national trends in health-related/sociodemographic indicators. A total of 9,939,289 children and adolescents from 31 countries/special administrative regions between 1964 and 2017 collectively showed a large improvement of 38.4% (95% CI: 36.8 to 40.0) or 7.1% per decade (95% CI: 6.8 to 7.4). Large international improvements were experienced by all age and sex groups, with the rate of improvement slowing from 1964 to 2000, stabilizing near zero until 2010, before declining. Trends differed between countries, with national trends in vigorous physical activity a strong, positive correlate of national trends in sit-ups performance. More sit-ups data are needed from low- and middle-income countries to better monitor trends in muscular fitness.  相似文献   
7.
Conclusion The evidence indicates that learning-disabled children show pervasive and enduring language problems across a wide variety of language tasks. The studies suggest that the problems experienced by learning and reading-disabled children may fall into the categories of phonology, syntax, semantics, and pragmatics as well as nonverbal communication. In terms of nonverbal communication, these children are less accurate in interpreting nonverbal auditory and visual cues. In phonology, it appears that they are less skilled in detecting the segments of single words and thus have difficulty establishing phoneme to grapheme correspondence. In the area of syntax, learning-disabled males are less skilled in dealing with inflection and the comprehension and creation of complex sentences. In semantics, they are less adequate than nondisabled children in defining words, creating sentences, and classifying objects into categories. They show less adequate sentence production, are less skilled at recognizing their errors, and are significantly slower in generating verbal responses. Finally, there is one study that suggests that learning-disabled children may be discriminated by their use of language in social situations. This paper was presented at the 29th Annual Conference of The Orton Society at Minneapolis, November, 1978.  相似文献   
8.
We describe the integration of an actively controlled programmable microfluidic sample processor with on-chip optical fluorescence detection to create a single, hybrid sensor system. An array of lifting gate microvalves (automaton) is fabricated with soft lithography, which is reconfigurably joined to a liquid-core, anti-resonant reflecting optical waveguide (ARROW) silicon chip fabricated with conventional microfabrication. In the automaton, various sample handling steps such as mixing, transporting, splitting, isolating, and storing are achieved rapidly and precisely to detect viral nucleic acid targets, while the optofluidic chip provides single particle detection sensitivity using integrated optics. Specifically, an assay for detection of viral nucleic acid targets is implemented. Labeled target nucleic acids are first captured and isolated on magnetic microbeads in the automaton, followed by optical detection of single beads on the ARROW chip. The combination of automated microfluidic sample preparation and highly sensitive optical detection opens possibilities for portable instruments for point-of-use analysis of minute, low concentration biological samples.  相似文献   
9.
10.
In a survey among 360 parent-child dyads (children aged 8–12 years), parent and child reports of parental advertising mediation activities were examined. The first aim was to investigate how parent-child agreement in reporting mediation differed by family and child factors. Results showed that agreement was highest in communication-oriented families and between parents and girls. The second aim was to examine the role of agreement in predicting the mediation outcome (i.e., reduced materialism). Both measures predicted the mediation outcome, but its effectiveness was contingent on parent-child agreement. Mediation was most effective when parents and children both reported that parents often discussed advertising.  相似文献   
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