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This purpose of this study was to examine the ways in which three prospective teachers who had early opportunities to teach science would approach representing science content within the context of their student teaching experiences. The study is framed in the literature on pedagogical content knowledge and learning to teach. A situated perspective on cognition is applied to better understand the influence of context and the role of the cooperating teacher. The three participants were enrolled in an experimental teacher preparation program designed to enhance the teaching of science at the elementary level. Qualitative case study design guided the collection, organization, and analysis of data. Multiple forms of data associated with student teachers' content representations were collected, including audiotaped planning and reflection interviews, written lesson plans and reflections, and videotaped teaching experiences. Broad analysis categories were developed and refined around the subconstructs of content representation (i.e., knowledge of instructional strategies that promote learning and knowledge of students and their requirements for meaningful science learning). Findings suggest that when prospective teachers are provided with opportunities to apply and reflect substantively on their developing considerations for supporting children's science learning, they are able to maintain a subject matter emphasis. However, in the absence of such opportunities, student teachers abandon their subject matter emphasis, even when they have had extensive background and experiences addressing subject‐specific considerations for teaching and learning. © 2002 Wiley Periodicals, Inc. J Res Sci Teach 39: 443–463, 2002 相似文献
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In Experiment 1, male rats were trained to press both bars in a two-choice apparatus and were then given observational training of a go/no-go discrimination in which the observed operation of two inaccessible, dissimilar bars by a hidden experimenter constituted S+ and S?. After discrimination was established, individual rats were permitted access to the two bars. Six of the seven rats consistently pressed the S+ bar on 10 test trials, but failed to reverse bar preference after observational training was reversed. In Experiment 2, nine naive males received the same observational training as in Experiment 1, but without any pretraining to press either bar. All rats pressed the S+ bar on initial test and did so consistently throughout the 10 trials. Six of these rats received reversal training of the go/no-go discrimination after the 10 test trials. As in Experiment 1, all rats failed to press the new S+ bar. However, five of six rats in another group, which received reversal trainingprior to any test trials, did reverse and press the new S+ bar. In Experiment 3, controls for possible confounding effects of overtraining trials were conducted. These manipulations had no effect; the rats tested before reversal still failed to press the S+ bar, and the rats reversed before testing all reversed or pressed the most recent S+ bar. That is, S-R learning predominated over S-S learning if active, though unreinforced, responding to a particular bar intervened. In contrast, however, a cognitive (S-S) interpretation of directed response learning was supported by the results of Experiment 4, in which the rats that learned the go/no-go discrimination without responding (only by auditory and light cues) failed to press the S+ bar consistently. 相似文献
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Carlinda Leite Preciosa Fernandes Carla Figueiredo 《The Australian Educational Researcher》2018,45(4):435-453
Curriculum contextualisation and the role of teachers as curriculum makers are important for student learning. Building on this idea, this study was developed to understand if teachers from well-ranked schools are motivated to contextualise the curriculum and are using this strategy in their daily classroom routines. Data were gathered through focus group interviews with teachers from three Portuguese secondary schools that were well placed in the national exam ranking. The data analysis showed that teachers are motivated to contextualise the national curriculum in their daily teaching and learning practices to promote their students’ academic success and full development. However, teachers also identified constraints related to the existence of a mandatory national curriculum to be fulfilled, which is necessary for the national exams, and the length of the subject programmes. Despite the constraints, teachers recognised the positive outcomes of curricular contextualisation, mostly regarding the promotion of students’ motivation to learn. 相似文献
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This random assignment impact study of Big Brothers Big Sisters School-Based Mentoring involved 1,139 9- to 16-year-old students in 10 cities nationwide. Youth were randomly assigned to either a treatment group (receiving mentoring) or a control group (receiving no mentoring) and were followed for 1.5 school years. At the end of the first school year, relative to the control group, mentored youth performed better academically, had more positive perceptions of their own academic abilities, and were more likely to report having a "special adult" in their lives. However, they did not show improvements in classroom effort, global self-worth, relationships with parents, teachers or peers, or rates of problem behavior. Academic improvements were also not sustained into the second school year. 相似文献
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Increasing performance by differentiated teaching? Experimental evidence of the student benefits of digital differentiation 下载免费PDF全文
Carla Haelermans Joris Ghysels Fernao Prince 《British journal of educational technology : journal of the Council for Educational Technology》2015,46(6):1161-1174
This paper explores the effect of digital differentiation on student performance using a randomized experiment. The experiment is conducted in a second year biology class among 115 prevocational students in the Netherlands. Differentiation allowed students in the treatment group to work at three different levels. The results show that there is a significant effect of digital differentiation on the posttest score. This effect is robust to adding covariates such as students' ability, grade repetition, age, gender, class and average neighborhood income. There are no differential effects when dividing students in three groups, by ability. The results imply that differentiation in large classrooms is possible and beneficial for all students, once done digitally. 相似文献
228.
Carla Luguetti Kimberly L. Oliver Luiz Eduardo Pinto Basto Tourinho Dantas David Kirk 《Research quarterly for exercise and sport》2017,88(1):60-71
Purpose: This study was a 2-phase activist research project aimed at co-creating a prototype pedagogical model for working with youth from socially vulnerable backgrounds in a sport context. This article addresses the learning aspirations (learning outcomes) that emerged when we created spaces for youth to develop strategies to manage the risks they face in their community. Method: This study took place in a socially and economically disadvantaged neighborhood in a Brazilian city where we worked with a group of 17 boys aged 13 to 15 years old, 4 coaches, a pedagogic coordinator, and a social worker. During a 6-month period, we collected multiple sources of data including field journal entries/observations (38) and audio records of youth work sessions (18), coaches' work sessions (16), combined coaches and youth work sessions (3), and meetings between the lead and the 2nd author for debriefing and planning sessions (36). Results: By using an activist approach, 4 learning aspirations emerged: becoming responsible/committed, learning from mistakes, valuing each other's knowledge, and communicating with others. Conclusion: Findings suggest there is a need for more sports programs that start from young people's concrete needs and life situations and look to create places for youth to see alternative possibilities and take action. 相似文献
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Nappi C 《Endeavour》2007,31(4):124-128
Chanting wasps and shape-shifting worms were all in a day's work for sixteenth-century Chinese naturalists such as Li Shizhen (1518-1593). In an effort to understand the metamorphoses of both nature and the human body, he and other early modern Chinese scholars looked towards tiny creatures like roundworms, lice and demon bugs. For them, such animals could reveal the most intimate secrets of the universe. 相似文献