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Norma I. Scagnoli Jinhee Choo Jing Tian 《British journal of educational technology : journal of the Council for Educational Technology》2019,50(1):399-414
Video lectures (VL), considered an effective means for delivering course content and infusing teaching presence in the virtual environment, have become very popular in education. The purpose of this study was to investigate online student experiences with VL focusing on their opinion of usefulness of VL, their satisfaction with them and their perception of learning derived from them. Our findings show that students' satisfaction with VL has a strong relationship with positive overall learning experience and perception of impact of video on learning. Furthermore, VL can enhance a feeling of engagement with content because of learners' control of the media and instructors' presence. The findings also alert us on the importance of careful planning and balanced integration of VL with other course materials. This provides important information on the effectiveness of video-lectures in college teaching and learning and implications for practice in online course design. 相似文献
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This paper develops a typology of information cultures by synthesizing empirical and theoretical research in organization science and information science. Four information culture types are proposed. In a Result-oriented culture, the goal of information management is to enable the organization to compete and succeed in its market or sector. In a Rule-following culture, information is managed to control internal operations, and to reinforce rules and policies. In a Relationship-based culture, information is managed to encourage communication, participation, and a sense of identity. In a Risk-taking culture, information is managed to encourage innovation, creativity, and the exploration of new ideas. We expect most organizations to display to varying degrees norms and behaviors from all four types, and that the information culture profile of an organization would be related to its effectiveness. The paper ends by looking at the practical and theoretical value of a systematic examination of information culture and its link to organizational effectiveness. 相似文献
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Hui C. Choo Kazunori Nosaka Jeremiah J. Peiffer Mohammed Ihsan Chow C. Yeo Chris R. Abbiss 《Journal of sports sciences》2017,35(17):1715-1723
This study examined the test-retest reliability of near-infrared spectroscopy (NIRS), laser Doppler flowmetry (LDF) and Doppler ultrasound to assess exercise-induced haemodynamics. Nine men completed two identical trials consisting of 25-min submaximal cycling at first ventilatory threshold followed by repeated 30-s bouts of high-intensity (90% of peak power) cycling in 32.8 ± 0.4°C and 32 ± 5% relative humidity (RH). NIRS (tissue oxygenation index [TOI] and total haemoglobin [tHb]) and LDF (perfusion units [PU]) signals were monitored continuously during exercise, and leg blood flow was assessed by Doppler ultrasound at baseline and after exercise. Cutaneous vascular conductance (CVC; PU/mean arterial pressure (MAP)) was expressed as the percentage change from baseline (%CVCBL). Coefficients of variation (CVs) as indicators of absolute reliability were 18.7–28.4%, 20.2–33.1%, 42.5–59.8%, 7.8–12.4% and 22.2–30.3% for PU, CVC, %CVCBL, TOI and tHb, respectively. CVs for these variables improved as exercise continued beyond 10 min. CVs for baseline and post-exercise leg blood flow were 17.8% and 10.5%, respectively. CVs for PU, tHb (r2 = 0.062) and TOI (r2 = 0.002) were not correlated (P > 0.05). Most variables demonstrated CVs lower than the expected changes (35%) induced by training or heat stress; however, minimum of 10 min exercise is recommended for more reliable measurements. 相似文献
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Knowledge management support for teachers 总被引：2，自引：0，他引：2
John M. Carroll Chun Wei Choo Daniel R. Dunlap Philip L. Isenhour Stephen T. Kerr Allan MacLean Mary Beth Rosson 《Educational technology research and development : ETR & D》2003,51(4):42-64
Business organizations worldwide are implementing techniques and technologies to better manage their knowledge. Their objective
is to improve the quality of the contributions people make to their organizations by helping them to make sense of the context
within which the organization exists; to take responsibility, cooperate, and share what they know and learn; and to effectively
challenge, negotiate, and learn from others. We consider how the concepts, tools, and techniques of organizational knowledge
management can be applied to the professional practices and development of teachers. We describe a framework for knowledge
management support for teachers where the sharing of concrete knowledge scaffolds the attainment of more abstract levels of
knowledge sharing. We describe the development of a knowledge management support system emphasizing long-term participatory
design relationships between technologists and teachers, regional cooperation among teachers in adjacent school divisions,
the integration of communication and practice, synchronous and asynchronous interactions, and multiple metaphors for organizing
knowledge resources and activities.
This work was supported by the National Science Foundation, REC-0106552. 相似文献
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Suzanne S. Choo 《Critical Studies in Education》2020,61(4):512-527
ABSTRACT In this article, I highlight the emergence of a cosmopolitan turn in Literature education as observed in teachers’ beliefs and practices in Singapore schools. Central to the cosmopolitan turn is the view that Literature education should not be disengaged from real-world connections to others particularly those who are marginalized and oppressed in the world. In the first part of this article, I describe core principles informing a cosmopolitan approach to teaching Literature that is distinct from previous movements. In the second part, I utilize case studies of Literature teachers from four secondary schools in Singapore to discuss key tensions resulting from teachers’ attempts to foster cosmopolitan sensitivities. These tensions point to the propensity for Literature education to prioritize a form of universalism that neglects the dynamic interconnections between national and global identity; to encourage a human capital approach to education where cosmopolitanism is co-opted to strategically benefit elites and to perpetuate passive rather than active cosmopolitan engagement with justice. I suggest that awareness of these tensions can enable educators to develop more holistic and ethically grounded cosmopolitan Literature education where all students can be equipped with critical and empathetic capacities to navigate diverse and conflicting values in our global age. 相似文献
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Reading and Writing - This study investigates the relationship between three discourse synthesis skills (i.e., quotation, summarization, and connection) and students’ overall integrated... 相似文献
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The Malaysian Teacher Standards: a look at the challenges and implications for teacher educators 总被引：1，自引：0，他引：1
Pauline Swee Choo Goh 《Educational Research for Policy and Practice》2012,11(2):73-87
Talks of education transformation to improve the quality and outcomes of education in Malaysia culminated in the articulation of standards for teachers. The all new Malaysian Teacher Standards (MTS) launched in 2009 is to establish ??high competency?? standards for the teaching profession and to increase the status of teachers in Malaysia. This article briefly describes the standards that concern teachers and teacher educators alike. It is proposed that there are three challenges to the standards system that teacher educators may face. First, on transforming ingrained beliefs, values and biased perceptions of teaching that student teachers bring to the teaching institution. The second centers on the rhetoric-reality gap of the MTS itself, while the third challenge involves the actual training of teachers. Given these three challenges, this article also outlines several avenues for teacher educators to consider as they set out to better understand and re-design teacher education programs in this standards-based era of educational transformation. The discussion of the challenges and the proposed resources to meet the challenges are by no means exhaustive or acts as a conclusion but rather to create awareness for further discussion and analysis of the implications proposed in this article. 相似文献
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Kok Leong Choo 《Teaching in Higher Education》2013,18(4):485-497
This article attempts to establish the scope of critical management education in a formal educational setting. It is based on an empirical study of 24 academic staffs’ experience of engaging critical management education in four UK University Business Schools. The study seems to show that there are significant barriers to and potential pitfalls in introducing critical management education in a formal higher educational setting. The problems seem to be attributable to the institutionalised assessment rules and regulations, marketisation of higher education, power embedded in the professional roles of university teachers, learning styles and cultural diversity of students, and classroom practices required to support critical teaching and learning. Critical management education requires labour intensive pedagogy, and the approach is not to be recommended to Business Schools that are constrained by resources and experiencing low staff morale, otherwise it may generates individual self-doubt and cynicism. 相似文献
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Joanne L. Fallowfield Clyde Williams Jeanette Booth Boon H. Choo Sally Growns 《Journal of sports sciences》2013,31(6):497-502
This study examined the influence of water ingestion on endurance capacity during submaximal treadmill running. Four men and four women with a mean (± S.E.) age of 21.4 ± 0.7 years, height of 169 + 2 cm, body mass of 63.1 ± 2.9 kg and VO 2 max of 51.1 ± 1.8 ml kg?1 min?1, performed two randomly assigned treadmill runs at 70% VO 2 max to exhaustion. No fluid was ingested during one trial (NF‐trial), whereas a single water bolus of 3.0 ml kg?1 body mass was ingested immediately pre‐exercise and serial feedings of 2.0 ml kg?1 body mass were ingested every 15 min during exercise in a fluid replacement trial (FR‐trial). Run time for the NF‐trial was 77.7 ± 7.7 min, compared to 103 ± 12.4 min for the FR‐trial (P<0.01). Body mass (corrected for water ingestion) decreased by 2.0 ± 0.2% in the NF‐trial and 2.7 ± 0.2% in the FR‐trial (P<0.01), while plasma volume decreased by 1.1 ± 1.1% and 3.5 ± 1.1% in the two trials respectively (N.S.). However, these apparent differences in circulatory volume were not associated with differences in rectal temperature. Respiratory exchange ratios indicated increased carbohydrate metabolism (73% vs 64% of total energy expenditure) and suppressed fat metabolism after 75 min of exercise in the NF‐trial compared with the FR‐trial (NF‐trial, 0.90 ± 0.01; FR‐trial, 0.86 ± 0.03; P<0.01). Blood glucose concentrations were similar in both trials, while blood lactate concentrations were higher in the NF‐trial at the end of exercise (4.83 ± 0.34 vs 4.18 ± 0.38 mM; P<0.05). In summary, water ingestion during prolonged running improved endurance capacity. 相似文献