The Rules of Engagement: Examining the Limits of Standards and Accountability Policy     

Jacob Easley II 《The Educational forum》2013,77(2):214-224

Standards and accountability policies are central elements of school reform agendas aimed at equalizing students' access to quality education and closing the achievement gap. Yet, such policies have failed to yield the expected, large scale results. One explanation may be found in the embedded zones of wishful thinking. Two particular zones of wishful thinking are the policies' efficacy to foster deep learning and the standards' ability to create cohesive P–12 systems of educational excellence.  相似文献   

The Potential of Perspectivism for Science Education     

Jacob V. Pearce 《Educational Philosophy and Theory》2013,45(5):531-545

Many science teachers are presented with the challenge of characterizing science as a dynamic, human endeavour. Perspectivism, as a hermeneutic philosophy of science, has the potential to be a learning tool for teachers as they elucidate the complex nature of science. Developed earlier by Nietzsche and others, perspectivism has recently re-emerged in the context of the philosophy of science in the work of Ronald Giere. Giere presents a compelling case that scientific theories and scientific observation are perspectival by using science itself. There are many tangible examples already present in science textbooks which, when approached in a certain way, offer an exciting opportunity for a realistic incorporation of philosophy of science into the classroom. Furthermore, introducing perspectivism to students necessitates an engagement with notions such as truth, reality, perception and experimentation, through a familiar medium, while painting a nuanced conception of the nature of science.  相似文献   

Success in Community College: Do Institutions Differ?     

Charles T. Clotfelter  Helen F. Ladd  Clara G. Muschkin  Jacob L. Vigdor 《Research in higher education》2013,54(7):805-824

Community colleges are complex organizations and assessing their performance, though important, is difficult. Compared to 4-year colleges and universities, community colleges serve a more diverse population and provide a wider variety of educational programs that include continuing education and technical training for adults, and diplomas, associates degrees, and transfer credits for recent high school graduates. Focusing solely on the latter programs of North Carolina’s community colleges, we measure the success of each college along two dimensions: attainment of an applied diploma or degree; or completion of the coursework required to transfer to a 4-year college or university. We address three questions. First, how much variation is there across the institutions in these measures of student success? Second, how do these measures of success differ across institutions after we adjust for the characteristics of the enrolled students? Third, how do our measures compare to the measures of success used by the North Carolina Community College System? Although we find variation along both dimensions of success, we also find that part of this variation is attributable to differences in the kinds of students who attend various colleges. Once we correct for such differences, we find that it is not possible to distinguish most of the system’s colleges from one another along either dimension. Top-performing institutions, however, can be distinguished from the most poorly performing ones. Finally, our adjusted rates of success show little correlation either to measurable aspects of the various colleges or to the metrics used by the state.  相似文献   

The Curator's Task: Opening up Space and Time     

Mary Jane Jacob 《Curator: The Museum Journal》2006,49(3):283-286

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The Washington monument: Is it earthquake proof? Is spalling preventable?     

Jacob J. Creskoff 《Journal of The Franklin Institute》1934,218(5):533-541

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Unbraced cables     

Jacob Feld 《Journal of The Franklin Institute》1930,209(1):83-108

For long span cables, either with or without concentrated load, the usual methods of design are found to be inaccurate because they omit the elastic stretch of the cable and they assume an inaccurate shape of the resulting curve. Equations are derived to cover all possible cases, loaded and unloaded cable, based upon assumptions of elastic flexible cables with fixed supports. Equations are also derived showing the variation in several quantities with changes in temperature and movement of supports. Conditions of possible loads and elastic properties of cables are discussed. A bibliography covering major references to the subject is included.  相似文献   

An analytical method for detecting blown-out shots in coal mines     

G.F. Hutchison  Jacob Barab 《Journal of The Franklin Institute》1919,188(6):824-825

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An analysis of the relationship between open- and closed-mindedness and capacity for independent thought and action     

Jacob W. Blankenship  Wayne K. Hoy 《科学教学研究杂志》1967,5(1):69-72

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An analysis of teachers' managerial techniques     

Jacob S. Kounin 《Psychology in the schools》1967,4(3):221-227

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Audience Currencies in the Age of Big Data     

Jacob L. Nelson  James G. Webster 《媒体管理杂志》2016,18(1):9-24

ABSTRACT

Audience ratings data have long occupied the attention of marketers and media managers. These are the “currencies” that support the operation of commercial media. Today, metrics can be derived from many large datasets, raising the possibility that new kinds of currencies might emerge. We argue that data on exposure are the most likely to support currencies, and that these might well go beyond traditional measures of audience size and composition. We explore the relationship between the most plausible contenders for audience currencies: size and engagement as measured by time spent. Contrary to the “Law of Double Jeopardy,” we find these metrics to be uncorrelated in an online environment, suggesting that each might have a role to play as a currency. We conclude with a discussion of how the political economy of audience measurement is likely to affect audience currencies in the age of big data.  相似文献