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811.
Planting-Bergloo Sara Orlander A. A. Jakobson B. 《Cultural Studies of Science Education》2022,17(2):541-556
Cultural Studies of Science Education - In this study we examine upper secondary students’ notions of contraceptive methods, as human reproduction and contraception are common content in... 相似文献
812.
Graduate teaching assistants (TAs) are increasingly responsible for instruction in undergraduate science, technology, engineering, and mathematics (STEM) courses. Various professional development (PD) programs have been developed and implemented to prepare TAs for this role, but data about effectiveness are lacking and are derived almost exclusively from self-reported surveys. In this study, we describe the design of a reformed PD (RPD) model and apply Kirkpatrick''s Evaluation Framework to evaluate multiple outcomes of TA PD before, during, and after implementing RPD. This framework allows evaluation that includes both direct measures and self-reported data. In RPD, TAs created and aligned learning objectives and assessments and incorporated more learner-centered instructional practices in their teaching. However, these data are inconsistent with TAs’ self-reported perceptions about RPD and suggest that single measures are insufficient to evaluate TA PD programs. 相似文献
813.
Although the relation between teacher–student relationship and academic achievement has been addressed in many studies, the reciprocal relations between these two constructs have not been explored sufficiently. The aim of the present study was to test three competing models that hypothesized directionality of influence in relations between teacher acceptance, student-perceived teacher support, and academic achievement. Eight hundred sixteen students from 3 different grade levels in Slovenian elementary and secondary schools, covering the age range from late childhood through early-to-middle adolescence, participated in the study at the beginning and at the end of the school year. Structural equation modeling was used. Different models of relations between teacher acceptance, student-perceived teacher support, and academic achievement were analyzed using the cross-lagged panel correlation technique. The results supported the hypothesized reciprocal model, indicating the relation between teacher acceptance and academic achievement in both directions. Student-perceived teacher personal support partially mediates the relation between teacher acceptance and achievement in both directions on the whole sample but not in specific age groups. Finally, we found some age-specific differences in the relations between teacher acceptance, teacher personal support, and achievement. 相似文献
814.
W. Monty Jones Sara Dexter 《Educational technology research and development : ETR & D》2014,62(3):367-384
A qualitative study of math and science teachers at two middle schools identifies how their system for learning to integrate technology into their teaching goes beyond what school leaders typically consider when planning for teachers’ learning. In addition to (a) the district-initiated, or formal, system of professional development (PD) and professional learning communities (PLCs), it includes (b) teacher-initiated, or informal, learning with colleagues as well as (c) teachers’ independent learning activities. Analysis of why and how they form their system highlights how by only supporting the formal PD activities and PLCs, the district not only loses the valuable collective knowledge of the districts’ teachers derived from their informal and independent learning activities, but also diminishes the learning teachers derive from the formal PD activities since informal collaborations and independent work after formal PD activities often helps to bring the learning from the training room to the classroom. We present teachers’ insights and then discuss implications for the design of a holistic approach to facilitate teachers’ formal, informal, and independent learning that is tied together and supported by technology. While research on formal, informal and independent teacher learning exists, with technology frequently mentioned as a potential support for each of these three modes, these approaches have not been considered together as interdependent parts of the same holistic system for teacher learning nor has the way technology might knit these modes of teacher learning together been imagined as a part of that system. 相似文献
815.
Marcos Sanchez-Elez Inmaculada Pardines Pablo Garcia Guadalupe Miñana Sara Roman Margarita Sanchez Jose Luis Risco 《Journal of Science Education and Technology》2014,23(1):15-25
The use of new technologies in higher education has surprisingly emphasized students’ tendency to adopt a passive behavior in class. Participation and interaction of students are essential to improve academic results. This paper describes an educational experiment aimed at the promotion of students’ autonomous learning by requiring them to generate test type questions related to the contents of the course. The main idea is to make the student feel part of the evaluation process by including students’ questions in the evaluation exams. A set of applications running on our university online learning environment has been developed in order to provide both students and teachers with the necessary tools for a good interaction between them. Questions uploaded by students are visible to every enrolled student as well as to each involved teacher. In this way, we enhance critical analysis skills, by solving and finding possible mistakes in the questions sent by their fellows. The experiment was applied over 769 students from 12 different courses. Results show that the students who have actively participated in the experiment have obtained better academic performance. 相似文献
816.
Sara M. Brice Doug Rosemond Keith Lyons Mark Davis 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(2):274-287
The development of cable force during hammer-throw turns is crucial to the throw distance. In this paper, we present a method that is capable of measuring cable force in real time and, as it does not interfere with technique, it is capable of providing immediate feedback to coaches and athletes during training. A strain gauge was mounted on the wires of three hammers to measure the tension in the wire and an elite male hammer thrower executed three throws with each hammer. The output from the gauges was recorded by a data logger positioned on the lower back of the thrower. The throws were captured by three high-speed video cameras and the three-dimensional position of the hammer's head was determined by digitizing the images manually. The five best throws were analysed. The force acting on the hammer's head was calculated from Newton's second law of motion and this was compared with the force measured via the strain gauge. Qualitatively the time dependence of the two forces was essentially the same, although the measured force showed more detail in the troughs of the force–time curves. Quantitatively the average difference between the measured and calculated forces over the five throws was 76 N, which corresponds to a difference of 3.8% for a cable force of 2000 N. 相似文献
817.
818.
David V.B. James Steven C. Munson Sara Maldonado-Martin Mark B.A. De Ste Croix 《Research quarterly for exercise and sport》2013,84(4):533-539
The purpose of the present study was to investigate the influence of two exercise intensities (moderate and severe) on heart rate variability (HRV) response in 16 runners 1 hr prior to (-1 hr) and at +1 hr, +24 hr, +48 hr, and +72 hr following each exercise session. Time domain indexes and a high frequency component showed a significant decrease (p < .001) between -1 hr and +1 hr for severe intensity. The low frequency component in normalized units significantly increased (p <.01) for severe intensity at +1 hr. Only severe exercise elicited a change in HRV outcomes postexercise, resulting in a reduction in the parasympathetic influence on the heart at +1 hr; however, values returned to baseline levels by +24 hr. 相似文献
819.
Sara Donetto 《British Journal of Sociology of Education》2012,33(3):431-449
In the last two decades, undergraduate medical education in the United Kingdom has undergone several important changes. Many of these have revolved around a paradigmatic shift from ‘paternalistic’ to ‘patient-centred’ approaches to healthcare. Adopting a Foucauldian understanding of power and borrowing from Freire’s critical pedagogy, in this paper I draw upon ethnographic data from one UK medical school to illustrate the recurrence among medical students of narrow and uncritical understandings of patient-centred practices. These understandings highlight a tension between the ideals and frameworks of medical education policy and students’ conceptualisations of professional learning and practice. I explore this tension by tracing some possible links between students’ views of patient-centredness and the teaching practices at the medical school. I argue that more critical approaches to medical learning are sorely needed and suggest some directions for medical education that would help support the personal and professional development of more critically aware practitioners. 相似文献
820.
Abundant U.S. research documents an “immigrant advantage” in children’s physical health. This article extends consideration to the United Kingdom, permitting examination of a broader group of immigrants from disparate regions of the world and different socioeconomic backgrounds. Drawing on birth cohort data (ages 0–5) from both countries (n = 4,139 and n = 13,381), the analysis considers whether the children of immigrants have a physical and mental health advantage around the beginning of elementary school, and whether advantage is more pronounced among low‐educated populations. Findings indicate that the children of immigrants are not uniformly healthier than those in native‐born families. Rather, there is heterogeneity in the immigrant advantage across outcomes, and evidence of both greater advantage and disadvantage among children in low‐educated immigrant families. 相似文献