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Marcela Batistič Zorec 《欧洲教育》2013,45(2):154-168
This article presents part of the research performed in a project from 2008 to 2013, regarding the introduction of the Reggio Emilia approach to Slovene preschool educators. The study’s aim was to recognize the possible influence of the training—from 2009 to 2011—in this project on educators’ viewpoints and the promotion of children’s participation in practice. We believe that a potential reform of the Slovene national curriculum should establish the participation of children as one of its key principles. It seems that the two-year intensive training of educators, followed by projects in preschool practice, has been a successful step in this direction. 相似文献
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Marcela Munera William Bertucci Sebastien Duc Xavier Chiementin 《Sports biomechanics / International Society of Biomechanics in Sports》2016,15(4):409-428
Whole body vibration (WBV) is used as a training method but its physical risk is not yet clear. Hence, the aim of this study is to assess the exposure to WBV by a measure of acceleration at the lower limb under dynamic and static postural conditions. The hypothesis of this paper is that this assessment is influenced by the frequency, position, and movement of the body. Fifteen healthy males are exposed to vertical sinusoidal vibration at different frequencies (20–60 Hz), while adopting three different static postures (knee extension angle: 180°, 120° and 90°) or performing a dynamic half-squat exercise. Accelerations at input source and at three joints of the lower limb (ankle, knee, and hip) are measured using skin-mounted accelerometers. Acceleration values (g) in static conditions show a decrease in the vibrational dose when it is measured at a more proximal location in the lower extremity. The results of the performed statistical test show statistically significant differences (p < 0.05) in the transmissibility values caused by the frequency, the position, and to the presence of the movement and its direction at the different conditions. The results confirm the initial hypothesis and justify the importance of a vibration assessment in dynamic conditions. 相似文献
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Paul Cobb Terry Wood Erna Yackel Marcela Perlwitz 《Educational Studies in Mathematics》1992,23(5):483-504
Five second-grade classes in two schools participated in a project that was generally compatible with a constructivist theory of knowing. At the end of the school year, the students in these classes and their peers in six non-project classes in the same schools were assigned to ten textbook-based third-grade classes on the basis of reading scores. The two groups of students were compared at the end of the third-grade year on a standardized achievement test and on instruments designed to assess their conceptual development in arithmetic, their personal goals in mathematics, and their beliefs about reasons for success in mathematics. The levels of computation performance on familiar textbook tasks were comparable, but former project students had attained more advanced levels of conceptual understanding. In addition, they held stronger beliefs about the importance of working hard and being interested in mathematics, and about understanding and collaborating. Further, they attributed less importance to conforming to the solution methods of others. 相似文献
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Marcela Pozas Claudia Jaquelina González Trujillo Verena Letzel 《Journal of Research in Special Educational Needs》2021,21(3):222-232
With the increasing student diversity, the establishment of inclusive classrooms has become a top concern of policy-makers worldwide urging teachers to differentiate their instruction according to students’ individual learning needs. As the implementation of differentiated instruction (DI) relies mainly on teachers, previous research has mostly focused on examining teachers’ perspectives on their use of differentiation. In contrast, far less attention has been paid to explore students’ perspectives about their experiences in inclusive classrooms. Therefore, this study aims at examining students’ experiences of their teachers’ actual DI practice. Moreover, this study sets the spotlight on Mexico, a country that has faced changes with a recent proposed educational model. Results from a mixed analysis of variance revealed that students do in fact perceive that their teachers implement DI practices. It appears that both primary and secondary school teachers implement more frequent variants of mastery learning as well as tutoring systems as a means to differentiate their instruction. Implications of the results, as well as further lines of research, are discussed. 相似文献
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Christopher DeLuca Christoph Schneider Andrew Coombs Marcela Pozas Amirhossein Rasooli 《Assessment in Education: Principles, Policy & Practice》2020,27(1):26-45
ABSTRACTTeachers’ competence in educational assessment is a key feature in teacher professionalism. Understanding of assessment competence has evolved from the learning of technical skills in assessment to a context-dependent, socially defined understanding encompassing a multitude of approaches to assessment. Thus, a holistic approach to assessment competence is used in this research to specifically consider the role of education culture on assessment competence. In particular, we compared Canadian and German student teachers with regard to their self-rated competence in, and approaches towards, educational assessment. While structural analysis revealed that the overall dimensions in which assessment is perceived do not depend on culture, ANOVAs pointed at some differences between the two countries, particularly concerning assessment purposes and approaches to fairness. 相似文献
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Patrick Löffler Marcela Pozas Alexander Kauertz 《International Journal of Science Education》2013,35(16):1935-1956
ABSTRACTIn science education, context-based learning is mostly based on problem-oriented tasks [Gilbert, J. K. (2006). On the nature of “context” in chemical education. International Journal of Science Education, 28(9), 957–976]. Therefore, a relevant question is, how do students integrate the information given in the task into their problem-solving process? The basic assumption is that there is a transition from the situation described in the task to a science model needed to solve the problem [Mestre, J. (2002). Probing adults’ conceptual understanding and transfer of learning via problem posing. Journal of Applied Developmental Psychology, 23(1), 9–50]. The transition needs to be described by parameters of the situation, the science model and the transition process itself. This investigation focuses on the influence of these three elements on the problem-solving process to understand variations in performance [Bennett, J., Lubben, F., & Hogarth, S. (2007). Bringing science to life: A synthesis of the research evidence on the effects of context-based and STS approaches to science teaching. Science Education, 91(3), 347–370]) and the interaction with interest. Despite the large body of research on the mutual influence of context-based problem-solving and interest, research attempting to examine their interplay regarding performance is still lacking. We conducted a hierarchical regression analysis with 178 participants from German high-track schools to investigate three parameters with regard to their influence on affective variables and successful problem-solving: contextualisation of the situation described in the task; the complexity of the scientific model underlying the task; and transparency, which assesses whether and how the learner can identify this model [Löffler, P., & Kauertz, A. (2015). Modellanwendung in kontextualisierten Problemlöseaufgaben [Applying models in contextualised problem solving tasks]. In S. Bernholt (Ed.), Heterogenität und Diversität - Vielfalt der Voraussetzungen im naturwissenschaftlichen Unterricht (Vol. 35, pp. 648–650). Kiel: IPN; Durik, A., & Harackiewicz, J. (2007). Different strokes for different folks: How individual interest moderates the effects of situational factors on task interest. Journal of Educational Psychology, 99(3), 597–610)]. Our findings suggest that these parameters have different effects on how interest is triggered and maintained. Aspects of transparency exhibit small effects on successful problem-solving processes. The results support the assumption that the transition process is the main aspect of context-based problem-solving and can therefore be operationalised as the use of elements of the scientific model in students’ statements. Surprisingly, the usage of such elements cannot be sufficiently explained by pre-knowledge or cognitive abilities. 相似文献
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Marcela Román Carrasco F. Javier Murillo Torrecilla 《Educational technology research and development : ETR & D》2012,60(6):1107-1128
Research shows that computer access and use has a positive effect on the performance reached by Latin American schoolchildren in sixth grade. This is supported by Multilevel models of 4 and 3 levels with data from the Second Regional Comparative and Explanatory Study, developed by UNESCO (2008) in 16 countries and analyzing around 3,000 schools, some 92,000 sixth grade students and 3,900 teachers. The results: Barely one-third of Latin American sixth graders have a computer in their home, and schools where these children attend are unable to reverse this. Furthermore, there is a marked deficit of computers at home and schools in rural areas. Data shows that school performance in reading and math increases significantly among those students that have a computer in their home, an increase that is greater among those students that have at their disposal >10 computers at school. In turn, increased use, both by pupils and teachers, improves school performance in both disciplines once the following variables are controlled: socio-economic level, family culture, gender, mother tongue and number of pre-school years. 相似文献
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We explored how new Teachers of Color grappled with equity and excellence as they were constructing science teacher identities while learning to teach in a teacher education program committed to equity, justice, and excellence, and eventually teaching in urban schools where inequities and injustices persist. The theoretical framing, compiled from various bodies of literature, weaved together what we consider as essential parts of teacher identity construction and provided a lens with which to examine how conceptions of equity and excellence that the study participants were constructing meshed with their multiple identities, considerations on legitimate knowledge production, and dialectical relationships with which they grappled. Using transcendental phenomenology, we learned from and with three Black and Latinx teachers and their narratives. The teachers intertwined similarly and differently their evolving conceptions of equity and excellence into their evolving science teacher identities as they engaged in forms of contentious local practice and reflected on their experiences as science Teachers of Color teaching predominately Students of Color. Their multiple identities were meshed with histories of larger institutions—science, schooling, and society—and together these were shaping their conceptions of equity and excellence. The intermingling of equity and excellence, which was guiding the curricular and instructional decisions they were making in their classrooms, was also linked to what they considered as legitimate knowledge production in science classes and what counted as knowledge that their students needed to know at different times. The various dilemmas defined by opposing poles with which they were grappling also functioned as scales on which their coordinated equity-excellence unit of meaning was forming. Based on the study, we offer insights into practices that science teacher educators may consider as they prepare new teachers, and work with practicing teachers, to embrace and coordinate equity and excellence in their ever-developing science teacher identities. 相似文献
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Marcela Munera William Bertucci Sebastien Duc Xavier Chiementin 《Journal of sports sciences》2018,36(13):1465-1475
Vibration in cycling has been proved to have undesirable effects over health, comfort and performance of the rider. In this study, 15 participants performed eight 6-min sub-maximal pedalling exercises at a constant power output (150W) and pedalling cadence (80 RPM) being exposed to vibration at different frequencies (20, 30, 40, 50, 60, 70 Hz) or without vibration. Oxygen uptake (VO2), heart rate (HR), surface EMG activity of seven lower limb muscles (GMax, RF, BF, VM, GAS, SOL and TA) and 3-dimentional accelerations at ankle, knee and hip were measured during the exercises. To analyse the dynamic response, the influence of the pedalling movement was taken into account. The results show that there was not significant influence of vibrations on HR and VO2 during this pedalling exercise. However, muscular activity presents a significant increase with the presence of vibration that is influenced by the frequency, but this increase was very low (< 1%). Also, the dynamic response shows an influence of the frequency as well as an influence of the different parts of the pedalling cycle. Those results help to explain the effects of vibration on the human body and the influence of the rider/bike interaction in those effects. 相似文献