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111.
Harnessing technology to improve formative assessment of student conceptions in STEM: forging a national network 总被引:2,自引:0,他引:2
Haudek KC Kaplan JJ Knight J Long T Merrill J Munn A Nehm R Smith M Urban-Lurain M 《CBE life sciences education》2011,10(2):149-155
Concept inventories, consisting of multiple-choice questions designed around common student misconceptions, are designed to reveal student thinking. However, students often have complex, heterogeneous ideas about scientific concepts. Constructed-response assessments, in which students must create their own answer, may better reveal students' thinking, but are time- and resource-intensive to evaluate. This report describes the initial meeting of a National Science Foundation-funded cross-institutional collaboration of interdisciplinary science, technology, engineering, and mathematics (STEM) education researchers interested in exploring the use of automated text analysis to evaluate constructed-response assessments. Participants at the meeting shared existing work on lexical analysis and concept inventories, participated in technology demonstrations and workshops, and discussed research goals. We are seeking interested collaborators to join our research community. 相似文献
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The purpose of this study was to determine the validity of the metabolic equivalent (MET) equation and step rate function of the ActivPAL? physical activity logger in a group of females. Using a standard treadmill protocol, 62 females aged 15-25 years walked on a treadmill at speeds between 3.2 and 7.0 km · h(-1) while wearing an ActivPAL. Oxygen consumption was measured using expired gas analysis at each speed and METs for each speed were estimated based on each participant's own resting metabolic rate. A sub-set of 18 participants also wore an Actigraph. Results showed that the in-built equation in the ActivPAL significantly underestimated (P < 0.001) METs under treadmill conditions at higher intensities. The ActivPAL equation is based on step rate yet the relationship between counts and measured METs (r = 0.76; P < 0.001) is stronger than that between steps and measured METs (r = 0.59; P < 0.001). Both the ActivPAL and Actigraph step functions showed no significant difference (P > 0.05) to video recorded step rate except at the slowest walking speed where the Actigraph significantly underestimated steps (P < 0.05). The development of a new equation based on the counts-METs relationship that includes a variety of speeds and activities would be useful. The ActivPAL step function performs better than the Actigraph at the slowest walking speed under treadmill conditions. 相似文献
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This mixed methods study explores a service-learning experience embedded in a social foundations course in a teacher education program. The authors differentiate learning outcomes for social justice and charity service-learning, and utilize this framework to examine whether the service-learning experience fosters a social justice perspective. The findings demonstrate that while the experience did foster social justice perspectives for some students, the data also reflect evidence of learning outcomes that align with charity service-learning. 相似文献
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Lloyd Alan Fletcher 《Learned Publishing》2001,14(3):213-222
Customer Relationship Management (CRM) is a business strategy for improving profitability by focusing on customer needs and creating an attentive relationship with the customer. It involves a personalized and interactive approach for the entire customer lifecycle. Successful implementation of a CRM approach requires changes in organization structure, culture, and skills, as well as front‐ and back‐office information systems. CRM is a hot topic at the moment, and the marketplace of ‘CRM solutions’ is rife with confusing jargon, grandiose claims, and marketing hyperbole. This article attempts to explain what CRM actually is (and isn't), and provides some suggestions for how you should approach CRM for your business. 相似文献
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Professor Alan Warde 《Cultural Trends》2006,15(2-3):107-122
It is not unusual now to talk about the culture of the body, or to see routine and organized physical activity, as well as sport, as part and parcel of cultural life. In recent decades body management techniques have become a very conspicuous aspect of self-presentation and have been served by the expansion of the supply of commercial services to deal with diet and health, physical training and cosmetic improvement to appearances. The professionalization and commercialization of sport have also accelerated. Bourdieu interpreted measures for body management and maintenance in terms of the accumulation and display of cultural capital. He distinguished three types of cultural capital: institutionalized, objectified and embodied. This article considers some of the elements of the very complex and extensive property, embodied cultural capital. The Cultural Capital and Social Exclusion (CCSE) survey included questions on sporting activity, sports spectatorship and physical exercise routines, important elements in the mosaic of contemporary cultural activities. This article teases out the patterns of participation and taste in this area, examining differentiation by class, gender, education, ethnic and age groups in particular. While showing that all these factors matter, gender is the most important source of differentiation, though this is more the case for sport than for exercise per se. In addition, it is shown that educational qualification is particularly important in predicting participation in exercise, whereas occupational class makes more difference to the choice of sport, whether playing or watching. 相似文献
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