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This paper discusses the bases of a secondary physics teacher’s contradictory conceptions of the nature of science. The data were obtained from a series of four interviews and three months of classroom observation. One of the interviews, a group interview (having as interviewees the subject of this study and four other experienced physics’ teachers), has been shown to be a very powerful way of challenging the teacher’s views, of making him reflect about his ideas, and at the same time of reducing the risk of the interviewer suggesting particular ideas. An analogy to Piaget’s (1929) early methodology supplied a framework with which to categorise the interviewee’s replies. This categorisation has provided information about the bases that underpin the teacher’s different and conflicting views on the nature of science. Résumé Cet article analyse les fondements des conceptions contradictoires d’un professeur de physique de Iycée sur la nature de la science. Les donn?es ont été tirées d’une série de quatre entretiens et de trois mois d’observation en classe. L’un des modes d’entretiens, celui en groupe, au cours duquel les questions ont été posées au professeur sujet de cette étude ainsi qu’à quatre autres professeurs de physique expérimentés, s’est révélé être un moyen très puissant de remettre en question les opinions du professeur, de le faire réfléchir sur ses idées et, en même temps, de réduire le risque lié au fait que celui qui mène l’entretien peut induire des biais. Une analogie avec une des premières méthodologies de Piaget (1929) a permis d’établir une grille qui a servi à classer les réponses des professeurs. Cette classification a fourni des informations qui sont à la base des différences et des contradictions de vue des enseignants sur la nature de la science. 相似文献
63.
Health care practitioners come to understand their professional roles through socialization processes. This project investigates value sets that are constructed through interactions between medical students and two important socializing agents: standardized patients and virtual patients. Through in‐depth interviews with medical students and key administrators at two schools as well as an analysis of rhetorical artifacts about the formal curricula at both schools, we explored the ideological aspects of medical instruction as constituted and reinforced, perhaps subtly, covertly, and even inadvertently, through the pedagogical practices of using standardized and virtual patients. Our results highlight how these medical students perceive standardized and virtual patient interactions as an opportunity to manage uncertainty, and confront a primary tension they will face in enacting their professional rotes—being cost effective and efficient while also treating “patients as people.” 相似文献
64.
For adults, ownership is nonobvious: (a) determining ownership depends more on an object’s history than on perceptual cues, and (b) ownership confers special value on an object (“endowment effect”). This study examined these concepts in preschoolers (2.0–4.4) and adults (n = 112). Participants saw toy sets in which 1 toy was designated as the participant’s and 1 as the researcher’s. Toys were then scrambled and participants were asked to identify their toy and the researcher’s toy. By 3 years of age, participants used object history to determine ownership and identified even undesirable toys as their own. Furthermore, participants at all ages showed an endowment effect (greater liking of items designated as their own). Thus, even 2‐year‐olds appreciate the nonobvious basis of ownership. 相似文献
65.
In this study, observed maternal positive engagement and perception of work–family spillover were examined as mediators of the association between maternal nonstandard work schedules and children's expressive language outcomes in 231 African American families living in rural households. Mothers reported their work schedules when their child was 24 months of age and children's expressive language development was assessed during a picture book task at 24 months and with a standardized assessment at 36 months. After controlling for family demographics, child, and maternal characteristics, maternal employment in nonstandard schedules at the 24-month timepoint was associated with lower expressive language ability among African American children concurrently and at 36 months of age. Importantly, the negative association between nonstandard schedules and children's expressive language ability at 24 months of age was mediated by maternal positive engagement and negative work–family spillover, while at 36 months of age, the association was mediated only by negative work–family spillover. These findings suggest complex links between mothers’ work environments and African American children's developmental outcomes. 相似文献
66.
This research focuses on experienced Estonian teachers’ pre-service school practice. Each one of the 19 teachers interviewed in this study had over 25?years of professional experience. We were interested in their recollections of their pre-service school practice and the impact that their experience had on them professionally. The results indicate the importance of support systems and a cooperative atmosphere in the school, both of which enable a beginning teacher’s self-efficacy. Despite the lack of explicit support structures from the 1960s to the 1980s, implicit support existed and played an important role in facilitating the development of student teachers’ self-efficacy. 相似文献
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68.
Hilary Horn Ratner Erika London Bocknek Anna G. Miller Sharon L. Elliott Beverly Weathington 《Teacher Development》2018,22(3):427-446
The current paper describes an urban university-anchored but community-based consortium of early childhood centers and community partners in a large Midwestern US city. The goal of the Consortium is to provide professional development opportunities that include networking, coaching, and collaboration as part of a community of practice (CoP) intended to improve program quality. Our findings suggest that early childhood center directors who are part of the Consortium describe benefits consistent with a CoP, specifically in terms of connection, resources, and community. Our findings also show that sense of community is associated with deeper engagement with the Consortium and program quality rating of the member center. Implications of the findings for future practice, especially in urban settings, are discussed. 相似文献
69.
Dorsomedial Prefrontal Activity to Sadness Predicts Later Emotion Suppression and Depression Severity in Adolescent Girls 下载免费PDF全文
Veronika Vilgis Kristina L. Gelardi Jonathan L. Helm Erika E. Forbes Alison E. Hipwell Kate Keenan Amanda E. Guyer 《Child development》2018,89(3):758-772
The present study used cross‐lagged panel analyses to test longitudinal associations among emotion regulation, prefrontal cortex (PFC) function, and depression severity in adolescent girls. The ventromedial and dorsomedial PFC (vmPFC and dmPFC) were regions of interest given their roles in depression pathophysiology, self‐referential processing, and emotion regulation. At ages 16 and 17, seventy‐eight girls completed a neuroimaging scan to assess changes in vmPFC and dmPFC activation to sad faces, and measures of depressive symptom severity and emotion regulation. The 1‐year cross‐lagged effects of dmPFC activity at age 16 on expressive suppression at age 17 and depressive symptomatology at age 17 were significant, demonstrating a predictive relation between dmPFC activity and both suppression and depressive severity. 相似文献
70.
How children use input to acquire a lexicon 总被引:2,自引:0,他引:2
The contributions of social processes and computational processes to early lexical development were evaluated. A re-analysis and review of previous research cast doubt on the sufficiency of social approaches to word learning. An empirical investigation of the relation of social-pragmatic and data-providing features of input to the productive vocabulary of sixty-three 2-year-old children revealed benefits of data provided in mother-child conversation, but no effects of social aspects of those conversations. The findings further revealed that the properties of data that benefit lexical development in 2-year-olds are quantity, lexical richness, and syntactic complexity. The nature of the computational mechanisms implied by these findings is discussed. An integrated account of the roles of social and computational processes to lexical development is proposed. 相似文献