Grade 5 Students’ Online Argumentation about Their In-Class Inquiry Investigations     

Aeran Choi  Brian Hand  Lori Norton-Meier 《Research in Science Education》2014,44(2):267-287

This study examined the extent to which fifth-grade students participate in online argumentation and the argument patterns they produced about the inquiry-based investigations completed using the Science Writing Heuristic approach in their science classes. One hundred twenty-nine students from five classes of two teachers in a Midwestern public school completed two inquiry-based investigation units, one per semester, followed by asynchronous online discussions using the Moodle forum. Among the 129 students, 107 students produced 739 notes in the plant investigation online discussion and 111 students produced 686 notes in the human health investigation online discussion. Results indicate that students were actively engaged in the online discussions about inquiry investigations with comments being focused on providing more evidence and backing for claims and negotiating evidence in both investigations. The students also engaged in challenging and querying the test procedures and reference sources as the basis for evidence. Implications are discussed for science teaching and learning and further study on argument-based inquiry in online environments.  相似文献   

Including students with disabilities in national academic assessments in Korea     

JongKeun Choi  Daesik Lee  Eunju Jung 《Asia Pacific Education Review》2012,13(4):741-756

In Korea, the effort to include students with disabilities in the educational accountability system has just begun. This paper reviews how Korean students with disabilities have been tested using the National Assessment of Educational Achievement (NAEA) and what issues have emerged as a result of the testing. Analysis of the 2009 and 2010 NAEA data reveals that only a small proportion of students with disabilities participated in these tests and that those who did participate showed low academic achievement compared with general education students. In addition, even though alternate assessments are conducted by special education teachers to assess the academic performance of students with disabilities, national academic assessments in Korea do not include a system for alternate assessment. Based on findings of the analysis, several suggestions are made for improvement in Korea??s educational accountability system for students with disabilities.  相似文献   

I. EXECUTIVE CONTROL IN EARLY CHILDHOOD     

C. A. C. Clark  N. Chevalier  J. M. Nelson  T. D. James  J. P. Garza  H.-J. Choi  K. A. Espy 《Monographs of the Society for Research in Child Development》2016,81(4):7-29

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II. THE PRESCHOOL PROBLEM SOLVING STUDY: SAMPLE,DATA, AND STATISTICAL METHODS     

T. D. James  H.-J. Choi  S. A. Wiebe  K. A. Espy 《Monographs of the Society for Research in Child Development》2016,81(4):30-46

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Does Media Coverage of a Celebrity Suicide Trigger Copycat Suicides?: Evidence from Korean Cases     

Yun Jeong Choi 《Journal of Media Economics》2016,29(2):92-105

This article investigates the link between media coverage of celebrity suicides and the nation’s suicide rate. The instrumental variable regression is applied to suicide data from Statistics Korea and the media coverage data on celebrity suicides from Mediagaon of the Korea Press Foundation during the period from 1997 to 2009. The estimation results demonstrate that Korean celebrity suicides have significantly increased suicide rates, whereas non-Korean celebrity suicides have not. Moreover, greater media coverage of Korean celebrity suicides is associated with an increase in suicide rates. These findings shed light on the importance of media policy in the prevention of copycat suicides.  相似文献   

Deconstructing neoliberalism in global citizenship discourses: an analysis of Korean social studies textbooks     

Yoonjung Choi  Yeji Kim 《Critical Studies in Education》2020,61(4):464-479

ABSTRACT

This study explored ways in which official social studies textbooks in South Korea promote global citizenship given the dominant neoliberal ideology in the field of education. Employing soft versus critical global citizenship education (GCE) and critical discourse analysis, this study analyzed 12 middle-school (seventh to ninth grades) social studies textbooks that are mandatory in Korean public schools. The findings of this study demonstrate the prevalence of a neoliberal agenda and nationalist rhetoric in the global citizenship discourses in the textbooks. We discussed the extent to which themes for GCE including globalization, cultural diversity, peace, sustainability, and associated skills and dispositions were instrumental in perpetuating neoliberal economic values and nationalism while marginalizing social justice and multiculturalism in official textbooks.  相似文献   

The prospects for using the Internet in collaborative design education with China     

Alice Lo Choi Yuet Ngor 《Higher Education》2001,42(1):47-60

The Internet has become widely available in higher educationinstitutions all over the world offering new possibilities incommunication, collaboration and delivery. This paper examines theprospects for using the Internet in the context of collaborative designeducation with China, using the School of Design of the Hong KongPolytechnic University as a case study. The critical success factors arediscussed. These involve serious investment of resources and changes atgovernment, institutional and personal levels on both sides of thecollaborative institutions. It is important to look into theinfrastructure and policy issues, access to information technology,curriculum adaptation and instructional design as well as staff andstudent attitudes in order to achieve the collaborative objectivesthrough an Internet supported strategy. Although the Internet is a costeffective delivery mechanism, the School does not intend to deliver itsdesign course materials to China purely online. Pedagogically, theSchool believes in a dynamic interaction between real and virtuallearning environments for quality student learning. Technically, thereare many impediments to overcome before teaching staff and students arefamiliar with the use of information technology and it will take sometime before most people in China can make full access of the Internet toconnect freely to electronic education. Therefore, a hybrid approach isproposed to train design educators and practitioners in Mainland Chinaby utilising traditional face-to-face teaching method and establishedtechnologies while developing the use of the Internetgradually.  相似文献   

Local collective identity enculturation within a global media consumption culture     

Chul-Byung Choi 《Asia Pacific Education Review》2002,3(1):1-17

What follows is an attempt to examine new forms of contemporary individual and local collective identity construction. More and more people are constructing their own identities on the basis of active consumption of industrial and symbolic products offered to them by the global electronic and televisual media. This trend is in contrast to the traditional forms of collective identity education which has been carried out on the basis of citizenship of the nation state. The purpose of this paper is to examine the possibility or predicament of local collective identity enculturation within this newly established context global media consumption cultural context.  相似文献   

A large-area hemispherical perforated bead microarray for monitoring bead based aptamer and target protein interaction     

Jong Seob Choi  Sunwoong Bae  Kyung Hoon Kim  Tae Seok Seo 《Biomicrofluidics》2014,8(6)

Herein, we present a large-area 3D hemispherical perforated microwell structure for a bead based bioassay. Such a unique microstructure enables us to perform the rapid and stable localization of the beads at the single bead level and the facile manipulation of the bead capture and retrieval with high speed and efficiency. The fabrication process mainly consisted of three steps: the convex micropatterned nickel (Ni) mold production from the concave micropatterned silicon (Si) wafer, hot embossing on the polymer matrix to generate the concave micropattened acrylate sheet, and reactive ion etching to make the bottom holes. The large-area hemispherical perforated micropatterned acrylate sheet was sandwiched between two polydimethylsiloxane (PDMS) microchannel layers. The bead solution was injected and recovered in the top PDMS microchannel, while the bottom PDMS microchannel was connected with control lines to exert the hydrodynamic force in order to alter the flow direction of the bead solution for the bead capture and release operation. The streptavidin-coated microbead capture was achieved with almost 100% yield within 1 min, and all the beads were retrieved in 10 s. Lysozyme or thrombin binding aptamer labelled microbeads were trapped on the proposed bead microarray, and the in situ fluorescence signal of the bead array was monitored after aptamer-target protein interaction. The protein-aptamer conjugated microbeads were recovered, and the aptamer was isolated for matrix assisted laser desorption/ionization time-of-flight mass spectrometry analysis to confirm the identity of the aptamer.  相似文献   

Examining the application of Web 2.0 in medical-related organisations     

Chu SK  Woo M  King RB  Choi S  Cheng M  Koo P 《Health information and libraries journal》2012,29(1):47-60

Objectives: This study surveyed Web 2.0 application in three types of selected health or medical‐related organisations such as university medical libraries, hospitals and non‐profit medical‐related organisations. Methods: Thirty organisations participated in an online survey on the perceived purposes, benefits and difficulties in using Web 2.0. A phone interview was further conducted with eight organisations (26.7%) to collect information on the use of Web 2.0. Data were analysed using both quantitative and qualitative approaches. Results: Results showed that knowledge and information sharing and the provision of a better communication platform were rated as the main purposes of using Web 2.0. Time constraints and low staff engagement were the most highly rated difficulties. In addition, most participants found Web 2.0 to be beneficial to their organisations. Conclusions: Medical‐related organisations that adopted Web 2.0 technologies have found them useful, with benefits outweighing the difficulties in the long run. The implications of this study are discussed to help medical‐related organisations make decisions regarding the use of Web 2.0 technologies.  相似文献