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41.
42.
Increasing numbers of Spanish-speaking preschool children require attention to improve the likelihood of success in school.
This study, part of a larger 2-year ethnographic study of a Head Start classroom, elaborates the role of teachers’ interactions
with students who were learning English. Using an interactional ethnography approach, the authors focus on the social nature
of these interactions. The study illuminates the kinds of teacher interactions with students that support and hinder the students’
language learning. It reinforces the importance of student engagement in social interactions with teachers and with English
other than codes of obedience and authority. Finally, it recommends actions teachers can take to provide optimal circumstances
for English learning interactions for students.
相似文献
Lesley A. RexEmail: URL: http://www.umich.edu/~rex/ |
43.
Quantum chemistry is based on the solution of the Schrödinger equation for a molecule. From starting data on the positions and nature of constituent atoms information is provided about the energy of the molecule and its electronic properties. The former can indicate what shapes drugs can adopt in binding to pharmacological receptors whilst electronic details, when compared using computer graphics, may highlight the factors responsible for biological activity. These techniques are beginning to show real successes in the design of drug molecules. 相似文献
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In this study we examined the effect of heart rate and behavioral measures of attention on distractibility of 6-, 9-, and 12-month-old infants. The infants were presented with a toy, and a distractor was presented while they attended to the toy. The distractor was presented during heart rate changes indicating sustained attention or attention termination, or during periods of time when behavioral ratings indicated the infant was in focused or casual attention. There were longer distraction latencies during attentional engagement as defined by heart rate changes or behavioral ratings than for periods of inattention. Infants had the longest distraction latencies when heart rate and behavior measures were congruent with respect to attention engagement (heart rate deceleration and focused attention). Conversely, latencies were shortes for congruent values of inattention (heart rate acceleration and casual attention). Infant information processing may be greatest when a heart rate deceleration occurs simultaneously with an episode of focused attention. 相似文献
47.
The first purpose of this study was to examine contemporaneous and longitudinal associations of maternal and paternal measures of family functioning with observational and self-report assessments of sibling conflict. The second purpose was to determine whether the ways in which families attempt to solve siblings' problems are associated with contemporaneous and longitudinal assessment of sibling conflict. The results indicate that paternal equality of treatment and family harmony during family discussions about sibling problems, as well as parents' perceptions of family cohesiveness, are associated with lower sibling conflict levels. 相似文献
48.
Ralph W. Richards 《Learning & behavior》1978,6(3):286-289
Pigeons were trained on a multiple variable-interval 5-min variable-interval 5-min schedule and then shifted to either a multiple variable-interval 1-min variable-interval 5-min or a multiple variable-interval 30-sec variable-interval 5-min schedule. A generalization test was subsequently administered along the dimension containing the stimulus associated with the variable-interval 5-min component. The generalization gradients for subjects that received multiple variable-interval 1-min variable-interval 5-min training were not consistent in shape. However, an incremental gradient was obtained from each subject that received multiple variable-interval 30-sec variable-interval 5-min training. Thus, a sufficiently large reduction in merely the relative frequency of reinforcement during a stimulus resulted in that stimulus’ acquiring inhibitory control over responding. 相似文献
49.
Mr Rex Kerrison 《Research in Science Education》1992,22(1):248-254
A recent large scale educational aid program to the Philippines included the retraining of secondary chemistry teachers. Teachers
were introduced to new content and to alternative teaching strategies. An initial resistance to change arose as it was perceived
that the new approaches did not take into account very limited school facilities and very large teaching groups. The lecturing
style of teaching, which predominates at all levels throughout the country, was seen as the most effective method to handle
overwhelming classroom problems. Resistance was overcome after alternative teaching styles were modelled. This paper gives
an overview of the aid program and outlines the introduced teaching strategies. It contends that Asian teachers have been
largely unaffected by western educational aid due in part to the fact that such aid is rarely accompanied by the modelling
of introduced strategies.
Specialisations: primary teacher education, primary mathematics, pre- and in-service science education. 相似文献
50.
Kay Kimber Hitendra Pillay Cameron Richards 《Asia-Pacific Journal of Teacher Education》2002,30(2):155-167
This article examines the current dilemma faced by many teachers: the drive for a modern day pedagogy advocating student-centred, technology-enabled learning is at odds with teacher comfort zones still nestled in a teacher-talk, print-based classroom. Put another way, the 'techno-reluctance' of many teachers represents a negative reaction to the perception that new technologies represent a threat to their traditional roles and general sense of practical agency in the learning process or classroom. The paper interprets some of the key factors impacting on techno-reluctance as a means of moving beyond such a simplistic view of the connection between digital technologies and changing teacher roles. On this basis, it goes on to discuss the concept of 'technoliteracy' as a means of reclaiming teacher agency in a studentcentred, computer-mediated environment and also reframing teacher attitudes to electronic texts and related literacy practices. 相似文献