학습자의 인지적 특성이 개념 변화에 미치는 영향

강석진,박지애,최숙영,노태희,Kang, Suk-Jin,Park, Ji-Ae,Choi, Sook-Yeong,Noh, Tae-Hee 대한화학회 2008 대한화학회지 Vol.52 No.5

초등 과학 협동학습에서 유화성을 고려한 소집단 구성의 효과

강석진,서아영,권혁순,Kang, Suk-Jin,Seo, A-Young,Kwon, Hyeok-Soon 대한화학회 2007 대한화학회지 Vol.51 No.3

이 연구에서는 협동학습에서 학생의 유화성 수준을 고려한 집단 구성이 초등학교 6학년 학생들의 과 학 성취도, 자아효능감, 과학 학습 동기에 미치는 영향을 조사했다. 1개 초등학교의 6학년 3개 학급 학생 72명 을 학급 단위로 통제 집단과 처치 집단으로 임의 배정했다. 사전 검사로 유화성 검사, 자아효능감 검사, 과학 학 습 동기 검사를 실시했다. 처치 집단의 학생들은 유화성 수준에 따라 동질 혹은 이질적으로 소집단을 편성한 후, 협동학습 전략에 따라 수업을 실시했다. 반면, 통제 집단 학생들은 임의로 소집단을 편성한 후, 전통적인 방 식으로 수업을 실시했다. 협동학습 처치는 5주(16차시) 동안 실시했다. 수업 처치가 끝난 후, 성취도, 자아효능 감, 과학 학습 동기 검사를 실시했다. 연구 결과, 이질 집단과 동질 집단의 성취도 검사 점수가 통제 집단에 비 해 유의미하게 높았지만, 유화성 수준에 따른 집단 구성은 성취도에 영향을 주지 않았다. 자아효능감과 과학 학 습 동기 검사에서는 수업 처치에 따른 차이가 나타나지 않았다.

학생들의 학교 밖 과학 경험과 과학의 본성에 대한 견해 사이의 관계

강석진,Kang, Suk-Jin 대한화학회 2012 대한화학회지 Vol.56 No.3

In this study, the relationship between students' out-of-school science experience and their view on the nature of science was investigated. The participants were 267 sixth graders, 281 eighth graders, and 307 tenth graders from schools in Seoul. A test of views on the nature of science which consists of five items concerning the purpose of science, the definition of scientific theory, the nature of scientific model, the tentativeness of scientific theory, and the origin of scientific theory was administered. Students' out-of-school science experiences were measured with a subscale of the modified Science Experience Survey consisting of seven items. The results indicated that no statistically significant relationship was found between students' out-of-school science experience and their view on the nature of science in sixth graders. In eighth graders, high level students in terms of out-of-school science experiences were found to possess more contemporarily epistemological view in the item concerning the nature of scientific model but more falsificationist view in the item concerning the tentativeness of scientific theory. High level tenth graders in terms of out-of-school science experiences exhibited more epistemologically sophisticated understandings of the nature of science than their counterparts in the items concerning the purpose of science, the definition of scientific theory, and the nature of scientific model.

초등학교 과학 수업에서 게임을 이용한 협동학습의 효과

강석진,고내영,고한중,Kang, Suk-Jin,Go, Nai-Young,Koh, Han-Joong 대한화학회 2005 대한화학회지 Vol.49 No.4

The Expression of c-myc, bcl-2 and p53 Proteins in Adenocarcinomas of Lung

Jinyoung Yoo,Ji Han Jung,Hyun Joo Choi,강석진Seok Jin Kang,Chang Suk Kang 대한암학회 2004 Cancer Research and Treatment Vol.36 No.2

Purpose: c-myc, bcl-2 and p53 are known to regulate apoptosis. There has been growing interest in analyzing their contribution to the pathogenesis and prognosis in a variety of human cancers. This study was undertaken to investigate the expression of these proteins in pulmonary adenocarcinomas and to determine their relationship with clinicopathologic parameters and survival. Materials and Methods: Archival tumor tissues from 61 patients with adenocarcinoma of lung were analyzed by immunohistochemistry for the expression of c-myc, bcl-2 and p53 proteins. Clinical information was obtained through the computerized retrospect database from the tumor registry. Results: Of 61 patients, 32 were men and 29 women with the median age 63 years. 4 had stage I disease, 2 had stage II disease and 55 had stage III disease. The expression of c-myc protein was identified in 13% (8/61) tumors, bcl-2 protein was detected in 1.6% tumors (1/61) and p53 was detected in 77% (47/71) tumors. The association of the expression of c-myc, bcl-2 and p53 was not detected. The survival time was longer in patients expressing c-myc protein than in patients without the c-myc protein expression (p=.045). Neither bcl-2 nor p53 showed the correlation to clinicopathologic variables. Conclusion: Our data suggest the involvement of p53 alteration in the pathogenesis of lung adenocarcinoma. The c-myc expression in some tumors indicates that c-myc alone may not contribute critically to the development and/or the progression of these tumors. It, however, correlated to the survival time, suggesting the c-myc expression as a favorable prognostic factor possibly through the apoptosis pathway.(Cancer Res Treat. 2004;36:146-150)

변칙 사례에 대한 초등학생들의 반응 연구

강석진(Suk Jin Kang),신숙희(Sook Hee Shin),노태희(Tae Hee Noh) 한국과학교육학회 2002 한국과학교육학회지 Vol.22 No.2

The types and the characteristics of students` responses to anomalous data in studying `boiling point` were investigated, and the degree of cognitive conflict and conceptual change were compared by students` cognitive variables. Tests regarding field dependence-independence and logical thinking ability, a preconception test, and a test of responses to anomalous data were administered to 137 sixth graders. Among them, 90 students whose preconceptions were consistent with the presented initial theory were selected. After learning the scientific concept, students` conceptual change was examined. Six types of responses identified were as follows: Rejection, reinterpretation, exclusion, uncertainty, belief decrease, and theory change. The main responses were rejection (33%) and theory change (39%). The results of Mann-Whitney U test indicated students who were field independent and had higher logical thinking abilities felt more cognitive conflict and exhibited more conceptual change.

광학 센서를 이용한 마이크로 추력기 성능측정 시스템 개발

강석진(Suk-Jin Kang),조혜란(Hyea-Ran Cho),최영훈(Young-Hoon Choi),장영근(Young-Keun Chang) 한국항공우주학회 2008 한국항공우주학회지 Vol.36 No.8

본 논문에서는 새로운 추력기 성능 측정 방식을 제안한다. 광센서를 이용하여 추력기를 탑재한 것을 가정한 진자가 일정구간을 지나가는 시간을 측정하여 마이크로 추력기의 성능을 계산할 수 있도록 하였다. 마이크로 추력기의 추력을 측정하기 위해서 이미 몇 종류의 측정 장비가 개발되어있지만 본 논문에서는 최소 임펄스 비트(minimum impulse bit)를 직접적으로 측정할 수 있으면서 요구되는 보정과정을 최소화 할 수 있는 새로운 시스템에 대해 논술하였다. 이전에 사용되지 않은 시간 측정 방식을 응용하여 추력기에서 생성되는 임펄스를 계산할 수 있다. 이러한 측정 시스템의 바탕이 되는 이론에 대해 설명하였고 개발된 하드웨어를 통해 실제로 시험하였다. 검증을 위해서 추력이 부정확한 추력기가 아닌 위치변화를 주는 스페이서를 사용하여 하드웨어와 시뮬레이션 결과를 비교분석하였다. 개발된 하드웨어를 통해 개념인증 및 시스템 검증을 수행하였다. A new method for measuring the performance of a micro-thruster is suggested in this paper. A few thrust stands have been developed for measuring micro-level thrusts. This paper describes a different measurement method that can minimize the calibration involved in the measurements, while providing the capability of directly measuring the produced minimum impulse bit directly. The underlying theory and the theoretical background for the measurement mechanism are described here. The theory and method is verified using a computer simulation, and the result is given in this paper. The theory has also been tested on an actual hardware. Although this hardware is a prototype, developed for proof-of-concept analysis, satisfactory results have been obtained.

소집단 토론 과정에서의 언어적 상호작용 분석

강석진(Suk Jin Kang),김창민(Chang Min Kim),노태희(Tae Hee Noh) 한국과학교육학회 2000 한국과학교육학회지 Vol.20 No.3

In this study, discourse patterns of four peer small groups in learning science concepts were examined. Verbal interactions during small group discussions were audio- and video-taped, transcribed, and analyzed. Three coding frameworks for the levels of turns, interaction units, and episodes were developed. In the analyses of turns, no clear relationships between students` prior achievements and contributions to knowledge building processes were found. Partly participating modes and symmetrical interaction modes were dominant in the analyses of interaction units to suggest that some students did not participate actively in small group discussions and that students` verbal interactions were superficial. The analyses of episodes also indicated that agreeing and/or partial elaborating on group members` ideas were the most frequent patterns and dialectical exchanges were rare in small group discussion.

토론 과정에서 사회적 합의 형성을 강조한 개념 학습 전략의 효과

강석진(Suk Jin Kang),노태희(Tae Hee Noh) 한국과학교육학회 2000 한국과학교육학회지 Vol.20 No.2

본 연구에서는 토론 과정에서의 사회적 합의 형성을 강조한 개념 학습 전략(SCS)을 개발하여 성취도, 개념 이해도, 의사소통 불안, 과학 학습 환경에 대한인식, 소집단 토론에 대한 인식 등의 측면에서 인지 갈등 유발 전략(CCS) 및 전통적 수업과 그 효과를 비교하였다. 성취도 점수에서는 유의미한 차이가 없었으나, 의사소통 능력 하위 학생들의 경우, 전통적 수업 집단에 비해 CCS 집단의 점수가 유의미하게 높았다. 개념 검사에서는 SCS 집단의 교정 평균이 다른 집단들에 비하여 높은 경향이 있었고, 개념 학습 전략은 의사소통 능력이 뛰어난 학생들에게 더 효과적이었다. 의사 소통 불안에서는 세 집단 간에 차이가 없었다. 과학 학습 환경에 대한 인식의 경우, 개인적 적합성 영역이나 학생간의 협상 영역에서는 집단간 차이가 없었으나, 참여도 영역에서는 SCS 집단의 점수가 높았다. 또한, SCS 집단 학생들이 소집단 토론에 대해 보다 긍정적으로 인식하고 있었다.

캐나다 경영의 인문학적 전통

강석진(Suk-Jin Kang) 한국캐나다학회 2019 Asia-Pacific Journal of Canadian Studies (APJCS) Vol.25 No.1

This study explores theoretically the relationship between liberal arts and management in Candadian business using Northrope Fry’s idea of garrison mentality. Frederic Winslow Taylor’s scientific management can be menacing to Canadians, including Roger Martin, a proponant of democratic capitalism, for super-efficiency may produce a high likelihood of exploitation and unsustainability. Roger Martin contributes to the business community by exploring the power of narrative and integrative thinking. Narratives and metaphors can be harnessed in order to generate new ideas. In order to build democratic capitalism, it is necessary to limit scale, to introduce friction, to promote patient capital, and to teach for resilience. All these points contrast sharply with most American management theories, which pursue the advantages of scientific management. The Canadian imagination can be mobilized for the purpose of constructing democratic organizational systems. Overall, Roger Martin’s management theory is an attempt to explore the possibility of innovating business organizations and solving problems in business without using a super-efficient model.