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Kantorski Brinley Sanford-Dolly Camellia W. Commisso Danielle R. Pollock John A. 《Educational technology research and development : ETR & D》2019,67(3):711-731
Backward design is a well-established design strategy that has been used to produce educational curriculum for decades. While traditionally used to plan and create classroom-based curriculum, in this paper we explore the use of backward design as a design strategy for the development of an educational mobile application, BiblioTech? “CityHacks: In Search of Sleep.” We discuss the process from initial conception to launch and updates, as well as plans for future research.
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Observation of a model prior to physical practice often facilitates the acquisition of motor skills. The majority of research studies on observational motor learning has used a skilled model for the demonstration. Recent research, however, suggests that observing an unskilled (learning) model may also be effective. The experiment reported here compared motor skill acquisition following observation of a learning model or a skilled model to the performance of subjects who lacked the benefit of observation. The task was to play a computer tracking game. Subjects were tested in pairs. Observers watched either a skilled or a learning model perform 3 trials. The observers then practiced the game for 3 trials. Observation of another 12 trials was followed by 12 more practice trials. Substantial observational learning was found, as both groups of observers performed better than the learning models after both the 3 initial trials of observation and after 12 more observation trials. However, there were no differences due to observing the skilled or the learning model. These findings are discussed in relation to theoretical issues of observational learning. 相似文献
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Heat effects in fixed-bed sorption columns are often quite large and have a pronounced effect on the sorption kinetics. Proper design of such systems must include consideration of these effects.A method is developed for computing the maximum possible bed temperature. The model is tested on two systems: (1) the Linde molecular sieve 4 A/water system and (2) the Alcoa activated alumina F-1/water system. Since the predicted temperatures appeared to be low for the latter system, the model was refined by the inclusion of the isosteric integral heat of adsorption. Tests on the activated alumina show considerable improvement.The isosteres of two sorption therm correlations are investigated. The results show that the heat of adsorption of water on the alumina varies logarithmically with sorbate concentration—approaching high values at low concentrations and approaching the heat of vaporization of water at high concentrations. The results also suggest that the isosteric heat of adsorption behavior may be of use in assessing the “goodness of fit” of sorption therm correlations. 相似文献
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Accountability in education is not new. Schools have always been accountable in one way or another to the communities they serve, regardless of the policy environment of the time (Elmore, The Educational Forum, 69:134–142, 2005). This article explores how three principals from Ontario, Canada manage the tensions of multiple accountability systems in their work. Findings indicate that the principals were able to find ways to be accountable to a variety of communities and ideals by prioritizing and honoring local needs and beliefs within the larger provincial mandate. Principals could not ignore the various accountability pressures; indeed, their success hinged on the ability to negotiate them. This delicate balancing act requires school principals to develop skills necessary to successfully juggle these competing demands. 相似文献
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Keith W. Dickinson Anne Pollock John Troy 《Assessment & Evaluation in Higher Education》1995,20(1):59-66
The 1992–93 session in Scottish universities saw the introduction of the Scottish Higher Education Funding Council's (SHEFC) statutory requirement to introduce quality assessments of teaching and learning. This paper looks at some of the issues that have arisen from the experience of staff at Napier University in terms of being assessed. It focuses on the issues that have arisen from the first and second round of visits to institutions. The key questions and problems associated with the process are considered in the context of the following headings: (1) defining quality; (2) the role of the lead assessor; (3) the framework for the visit; (4) the role of the student; (5) the quality of the reports; (6) the cost benefit analysis. SHEFC's stated aims for assessment are evaluated in the light of the above. 相似文献
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Ordinary and thermal diffusion of moisture in activated alumina are investigated using a new diffusion cell design and scheme of analysis reported earlier. The specific form of the mass flux equation has a pronounced effect on the magnitude of the associated thermal diffusion ratio. In the case of activated alumina-moist air, if a partial pressure gradient is used, then the thermal diffusion term is small if not zero.Free, Knudsen and surface diffusion all play a part in the diffusion through activated alumina. However, surface diffusion makes the major contribution and for this reason the model in this case can be simplified to a two parameter surface model.The activation energy for surface diffusion is constant and is approximately equal to the mean isosteric heat of absorption. In addition, mean pore radius, turtuosity, and other physical constants are computed from the least square fit of experimental data. Furthermore, the model is theoretically consistent over the entire concentration range (0≦ CA ≦ CAsat).A new fact about activated alumina (Grade F1) it that it does not transfer moisture in a nonisothermal condition so long as the partial pressures of moisture on the two sides of the pellet are the same. There appears to be no previous report of this fact in the periodical literature. 相似文献
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Chris A. Milesis Michael L. Pollock Michael D. Bah John J. Ayres Ann Ward A. C. Linnerud 《Research quarterly for exercise and sport》2013,84(4):716-725
Abstract The purpose of the study was to determine the effects of 15, 30, and 45 min of conditioning on maximum performance and cardiorespiratory fitness variables, body composition, pulmonary function, and serum lipids. Subjects, ages 20 to 35, were 59 inmates at a California state prison. The conditioning included running and walking and was performed three days/week at approximately 85 to 90% max HR for 20 weeks. The distance covered per exercise session was approximately 1.75, 3.25, and 5.1 miles for the 15-, 30-, and 45-min groups, respectively. Improvements in treadmill performance time. [Vdot]O2 max, max O2 pulse, diastolic blood pressure, and total skinfold fat were proportional to duration of the training session; i.e., the subjects training in the longer duration sessions showed the greater improvements. The control group showed no significant change during the same period. Compared to the control group, the 15-min group made significant reductions in resting HR, total skinfold fat, percent fat, and waist girth and increases in [Vdot]O2 max, max O2 pulse,[Vdot]E max, and treadmill performance time. Vital capacity, FEV1.0, and % FEV1.0 remained relatively unchanged in all four groups, as did serum cholesterol and triglycerides. The 45-min group improved significantly more than the 15-min group in treadmill time, [Vdot]O2 max, max O2 pulse, resting systolic and diastolic blood pressures, and percent fat. In general, comparisons between the 15- and 30-min groups and between the 30- and 45-min groups failed to yield statistically significant differences. 相似文献
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Of all the efforts to improve international understanding, perhaps the most noteworthy is the expansion of television to the international sphere in the form of Eurovision. 相似文献
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Carol Campbell Katina Pollock Patricia Briscoe Shasta Carr-Harris Stephanie Tuters 《Educational research; a review for teachers and all concerned with progress in education》2017,59(2):209-227
AbstractBackground: The importance of ‘evidence-informed practice’ has risen dramatically in education and in other public policy areas. This article focuses on the importance of knowledge mobilisation strategies, processes and outputs. It is concerned with how these can support the adaptation and implementation of evidence from research and professional knowledge to inform changes in educational practices. It presents a case study of the Knowledge Network for Applied Education Research (KNAER), a tripartite initiative in Canada involving the Ontario Ministry of Education, University of Toronto and Western University and 44 KNAER-funded projects.Purpose: The purpose of the article is to analyse the developing approach towards supporting knowledge mobilisation by the KNAER provincial partners through the governing body of the Planning and Implementation Committee and strategic and operational work of the university teams, and also the knowledge mobilisation strategies, challenges and successes of 44 KNAER projects.Design and methods: We utilised a qualitative case study approach to investigate the Knowledge Network for Applied Education Research’s (KNAER) approaches to developing knowledge mobilisation over four years (2010–2014).To explore the work of the KNAER provincial partners, we analysed 17 meeting notes from the Planning and Implementation Committee and 9 notes from the university KNAER partners’ meetings. To explore the knowledge mobilisation strategies, challenges and successes of KNAER-funded projects, we analysed the 44 knowledge mobilisation plans, 141 interim reports and 43 final reports submitted by projects. To further investigate the experiences of KNAER projects during their implementation, we analysed responses from 21 people from 19 KNAER projects who participated in a facilitated discussion about their experiences.Results: The Planning and Implementation Committee’s role involved three core responsibilities: (1) Approving knowledge mobilisation proposals submitted to the KNAER; (2) Ensuring that collaborative partnerships were developed at the local, provincial, national and international levels; and (3) Approving the KNAER operational and strategic plan. The university partners have taken on the roles of operational management, strategic leadership, and research and knowledge mobilisation expertise. KNAER projects varied in their knowledge mobilisation strategies, challenges and successes. ‘Exploiting Research’ projects focused on establishing connections and engaging communities of practice with people relevant to the project’s focus, creating an analysis of needs, designing or producing a relevant knowledge mobilisation product with the purpose of improving practice, monitoring the results or impact of the new product and sharing the dissemination process and results with others. ‘Building or Extending Networks’ projects engaged in creating or extending existing networks, developing a needs-based or gap assessment and producing appropriate products and dissemination processes based on the results gathered. ‘Strengthening Research Brokering’ projects organised steering committees to guide their work and gathered information via a literature review or by collecting information from stakeholders and then served as research brokers by collecting and mobilising relevant knowledge to inform practice. ‘Visiting World Experts’ projects developed knowledge mobilisation plans for host experts’ visits, involving establishing partnerships with networks, including universities and schools, and utilising social media and communication processes for knowledge mobilisation products.Conclusions: KNAER included aspects of linear, relationships and systems models for connecting evidence and practice. Looking forward, KNAER is seeking to further advance a systemic approach. A systems model is in preference to linear models – which focus on evidence production only without attention to mobilisation or uptake of research, and/or relationships models – which may develop networks, but do not attend to capacity and resource barriers that need to be addressed for systemic and sustainable knowledge mobilisation. 相似文献