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Alejandra J. Magana Sean P. Brophy Lynn A. Bryan 《International Journal of Science Education》2013,35(14):2181-2203
Size and scale cognition is a critical ability associated with reasoning with concepts in different disciplines of science, technology, engineering, and mathematics. As such, researchers and educators have identified the need for young learners and their educators to become scale-literate. Informed by developmental psychology literature and recent findings in nanoscale science and engineering education, we propose an integrated knowledge framework for characterizing and scaffolding size and scale cognition called the FS2C framework. Five ad hoc assessment tasks were designed informed by the FS2C framework with the goal of identifying participants' understandings of size and scale. Findings identified participants' difficulties to discern different sizes of microscale and nanoscale objects and a low level of sophistication on identifying scale worlds among participants. Results also identified that as bigger the difference between the sizes of the objects is, the more difficult was for participants to identify how many times an object is bigger or smaller than another one. Similarly, participants showed difficulties to estimate approximate sizes of sub-macroscopic objects as well as a difficulty for participants to estimate the size of very large objects. Participants' accurate location of objects on a logarithmic scale was also challenging. 相似文献
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Jannette Elwood 《Curriculum Journal》2013,24(2):189-208
ABSTRACT While interest in gender‐related differences in performance in examinations and assessment in the UK has been considerable, it has tended to focus on the compul‐ sory phase of schooling, particularly at age 16. This lack of attention to gender‐related differences in examinations at 18+ is somewhat surprising since outcomes at this stage of education are critical in terms of life chances and entry into higher and further edu‐ cation. This article discusses the picture of gendered achievement in the GCE A level examination. Trends in differential performance over time are examined and expla‐ nations put forward as to why these differences in performance occur. Explanations proposed cover links between gendered styles of learning and the style of examining; the statistical and educational impact of self‐selecting populations on performance patterns; and the contribution of different assessment techniques to differences in male and female examination performance. Finally, suggestions of where action might be taken to rectify the differences observed are given. The discussion in the article is supported by data from two research projects that have studied in detail the inter‐ action of examination systems and gender. 相似文献
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In 2014, three librarians at the University of San Diego came together to explore open educational resources (OER). Coming from both technical services and digital collections, we were well-versed in the economic challenges facing today’s libraries. In order to formulate the approach that would work best for our campus, we first had to educate ourselves on the past, present, and possible future of the Open Access movement. While traditionally Open Access has focused on serials, OER offer the opportunity to expand its benefits to other formats. This article examines opportunities and tensions surrounding OER, as well as highlighting major players on the OER landscape. Our efforts began with a focus group for faculty to assess their own knowledge of and opinions on OER. After establishing a stipend budget, we sent out a call for proposals to faculty who were interested in participating in the Copley OER Initiative. 相似文献
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In this paper, C. Alejandra Elenes proposes ways to implement the goals of border/transformative pedagogies in classroom practices in order to deal with the multiplicity of ideologies present in educational settings. The theorization and discussion presented is based on the sometimes tense relationships between Chicana faculty and White women students. Border/transformative pedagogy incorporates as social practices the construction of knowledge(s) capable of analyzing conflicts over meaning. This pedagogy is concerned with the elimination of racial, gender, class, and sexual orientation hierarchies by decentralizing hegemonic practices that places at the center of cultural practices a homogeneous belief in US society that has marginalized the cultural practices of people of color, women, and gays and lesbians. Thus, it can be viewed as liberatory by students who agree with those goals, and oppressive for students with more conservative leanings. Based on Gloria Anzaldua's conceptualization of mestiza consciousness, border/transformative pedagogies propose ways in which we can enact a practice where students and teachers participate, and that tries to undo dualistic thinking. Thus, this paper, which is based on classroom observations and analysis of student evaluations, is self-reflexive. Particular emphasis is placed on finding ways to be able to bring multiple ideologies and points of view to classroom discussion in ways that productive discourse is enabled. The discussion also centers on the contradictions present in classrooms that seek to be liberatory to the goals of democracy. Finally, the paper discusses ways in which women of color faculty can deal with racism existing in many contemporary educational settings. 相似文献
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The least squares method of fitting a line is not one that naturally occurs to students. We present three tasks to understand student views on how lines may be fit. 相似文献
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Subscore added value analyses assume invariance across test taking populations; however, this assumption may be untenable in practice as differential subdomain relationships may be present among subgroups. The purpose of this simulation study was to understand the conditions associated with subscore added value noninvariance when manipulating: (a) subdomain test length, (b) differences in subgroup mean ability, and (c) subgroup differences in intersubdomain correlations. Results demonstrated that subscore added value was noninvariant for 24–100% of replications (depending on subdomain test length) when the subgroup difference in intersubdomain correlation was equal to .30. To examine if this condition was met in practice, applied invariance analyses of three operational testing programs were conducted. Across these datasets, noninvariant subscore added value was present for some subdomains across sex and ethnic subgroups. Overall, these results indicate that subscore added value noninvariance is largely driven by differential intersubdomain correlations among subgroups, which may be present in some operational testing programs. 相似文献
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Walsh Yoselyn Magana Alejandra J. Feng Shi 《Journal of Science Education and Technology》2020,29(4):443-458
Journal of Science Education and Technology - The current study investigates the differences in students’ explanations of friction concepts after the use of the visuohaptic simulation with... 相似文献
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