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Wilson CD Anderson CW Heidemann M Merrill JE Merritt BW Richmond G Sibley DF Parker JM 《CBE life sciences education》2006,5(4):323-331
College-level biology courses contain many complex processes that are often taught and learned as detailed narratives. These processes can be better understood by perceiving them as dynamic systems that are governed by common fundamental principles. Conservation of matter is such a principle, and thus tracing matter is an essential step in learning to reason about biological processes. We present here multiple-choice questions that measure students' ability and inclination to trace matter through photosynthesis and cellular respiration. Data associated with each question come from students in a large undergraduate biology course that was undergoing a shift in instructional strategy toward making fundamental principles (such as tracing matter) a central theme. We also present findings from interviews with students in the course. Our data indicate that 1) many students are not using tracing matter as a tool to reason about biological processes, 2) students have particular difficulties tracing matter between systems and have a persistent tendency to interconvert matter and energy, and 3) instructional changes seem to be effective in promoting application of the tracing matter principle. Using these items as diagnostic tools allows instructors to be proactive in addressing students' misconceptions and ineffective reasoning. 相似文献
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Peter L. Galbraith Marjorie C. Carss Richard D. Grice Lovie Endean Merle C. Warry 《Educational Studies in Mathematics》1992,23(6):569-593
The research reported here has sought to identify target skills and abilities that will compose a future numeracy, so that new expertise can be incorporated and the exposed deficiencies remedied within a dynamic rather than static concept of competency. A nation-wide selection of panellists contributed to a three-round Delphi process, with the final data comprising both structured responses and qualitative comment. The scope of the items covered calculating activities, writing activities, reading activities, physical skills, supporting (mental) skills, applications, and problem solving. Responses to the structured items have provided priorities for numeracy for the turn of the century, in terms of both expected and desired characteristics. In general, expectations for numeracy fall short of the levels deemed desirable by panel consensus. The qualitative comments have been incorporated into three scenarios reflecting altermative visions for the future. A comparison of the scenarios uncovers wide differences between informed thinkers with respect to future visions of the ends, means, and mechanics of learning. These differences among individuals who are otherwise consistent in their views of future needs must be addressed if the identified priorities are not to be lost in a quagmire of conflicting interests, opinions, priorities, and values. 相似文献
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Parker JM Anderson CW Heidemann M Merrill J Merritt B Richmond G Urban-Lurain M 《CBE life sciences education》2012,11(1):47-57
We present a diagnostic question cluster (DQC) that assesses undergraduates' thinking about photosynthesis. This assessment tool is not designed to identify individual misconceptions. Rather, it is focused on students' abilities to apply basic concepts about photosynthesis by reasoning with a coordinated set of practices based on a few scientific principles: conservation of matter, conservation of energy, and the hierarchical nature of biological systems. Data on students' responses to the cluster items and uses of some of the questions in multiple-choice, multiple-true/false, and essay formats are compared. A cross-over study indicates that the multiple-true/false format shows promise as a machine-gradable format that identifies students who have a mixture of accurate and inaccurate ideas. In addition, interviews with students about their choices on three multiple-choice questions reveal the fragility of students' understanding. Collectively, the data show that many undergraduates lack both a basic understanding of the role of photosynthesis in plant metabolism and the ability to reason with scientific principles when learning new content. Implications for instruction are discussed. 相似文献
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Human performance technology has been successful in resolving organizational issues and prompting a variety of business improvements. Yet there are times when the problem‐ centered approach is not sufficient. Instead, attention to organizational strengths and a focus on creating and building a positive vision for the future represent a better strategy. This article looks at a new variation on the consulting model––HPT: Appreciative Approach. 相似文献
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Alvin Weinberg’s classic and much debated two articles in Minerva, “Criteria for Scientific Choice” (1963) and “Criteria for Scientific Choice II – The Two Cultures” (1964), represent two of the first and most important attempts to create a meta-discourse about priority setting in science policy, and many of the points advanced remain relevant. The goal of this paper is to elaborate on the relevance of some of Weinberg’s original arguments to priority setting today. We have singled out four issues for attention: The tension between scientific and institutional choice, the assumptions behind the triad of scientific, technological and social merit, the elusive ‘externality from size’ argument for funding promoted by Weinberg, and finally the problems involved in the idea of basic science as an ‘overhead cost’ for applied science, and applied science as an ‘overhead’ on a sectoral mission. These four issues will be elaborated from a policy perspective and connected to present day challenges for science and technology policy. 相似文献
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Merle Jacob 《Minerva》2009,47(4):391-405
The new prominence given to science for economic growth and industry comes with an increased policy focus on the promotion
of commodification and commercialization of academic science. This paper posits that this increased interest in commodification
is a new steering mechanism for governing science. This is achieved by first outlining what is meant by the commodification
of scientific knowledge through reviewing a selection of literatures on the concept of commodification. The paper concludes
with a discussion of how commodification functions as a means for governing science. 相似文献
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The use of guest speakers as a pedagogical technique across disciplines at the college level is hardly novel. However, empirical assessment of journalism and mass communication students' perceptions of this practice has not previously been conducted. To fill this gap, this article presents results from an online survey specifically administered to such students (N = 545) at a large public research university and a small liberal arts college. Results of statistical significance indicate that inviting a guest speaker is most valuable to students when the speaker comes from the industry and interacts face-to-face with the audience through personal examples and career tips rather than a formal slide-based lecture. Finally, this article contributes to and expands upon previous literature by offering a set of recommendations for the use of guest speakers in journalism and mass communication curriculum. 相似文献