‘빛’과 ‘소리’ 교육을 위한 공학설계 기반의 과학·공학 융합프로그램 개발 및 적용

이효진 ( Hyojin Yi ),남윤경 ( Younkyeong Nam ) 한국현장과학교육학회 2019 현장과학교육 Vol.13 No.3

본 연구는 한국 과학 수업의 현실적 상황에 적합한 과학·공학 융합 수업 프로그램을 개발하여 실제 중학교 1학년 2학기 자유학기제 수업에 적용하고 그 효과를 분석한 것이다. 본 연구를 위해 개발된 과학·공학 융합 수업의 2가지 주제(각 4차시)는 각각 ‘빛’ 과 ‘소리’에 관련된 중학교 1학년 과학교과 내용을 바탕으로 공학설계 단계와 공학수업의 핵심요소에 근거하여 설계되었다. 학생들에게 제시된 과학·공학 융합의 문제는 공학자가 되어 박물관 전시물의 도난을 방지하는 ‘레이저보안장치 만들기’와 아프리카 어린이를 위한 ‘기타 만들기’이다. 대도시 중학교 자유학기제 선택과목에서 19명의 학생들이 수업에 참여 하였으며 학생들의 활동과정에서 활동지 및 보고서, 인식설문지, 창의적 공학 문제해결 성향 검사지를 주요 데이터로 수집하였다. 프로그램 적용 결과 학생들의 창의적 공학 문제해결 성향에 효과를 주고, 공학에 대한 인식에 긍정적 변화를 주는 것으로 나타났다. 개발된 프로그램은 한국과학 수업상황에서 과학·공학 융합 프로그램의 적용이 가능하다는 점에서 의미를 갖는다. The purpose of this study is to develop a science and engineering integrated program suitable for the actual situation of science class in Korea. The two themes of each science and engineering developed for this study are based on first grade middle school science subject related to ‘light’ and ‘sound’. The engineering challenge presented to students is ‘making laser security devices’ to prevent theft of exhibits in museums as an engineer and ‘making guitar’ for African children. Nineteen students participated in the elective course of the free-choice semester in middle school, and activity data and reports, awareness questionnaire, and pre-post creative engineering problem solving propensity test were collected as main data. As a result of implementing the program, it was shown that students had a positive effect on creative engineering problem solving propensity and perception about engineering. The developed program is meaningful in that it can be applied to science and engineering integrated program in Korean science class situation.

초등 생태철학교육을 위한 그림책 분석과 활용 방향 탐색

이효진(Hyojin Yi),김찬국(Chankook Kim),김기대(Kee Dae Kim) 한국환경교육학회 2013 環境 敎育 Vol.26 No.3

This study was aimed to find directions of using adequate picture books as ecophilosophy educational materials. To achieve this goal, first, theoretical examination was conducted for drawing available criteria of analysis and selecting picture books. Second, the selected picture books were analyzed in contents analysis. Through theoretical examination and analysis of picture books analysis, this study derived the following findings. First, based on theoretical examination, this study proposes the criteria of analysis in selecting picture books. The criteria can be categorized into literature, ecophilosophical, and educational domains. Second, all of the twelve(12) books 1) have the components that could arouse students interests sufficiently and give new ways of looking at a problem, 2) have various subjects and themes about ecophilosophical problems, and 3) show diverse interactions between words and pictures. Third, some themes for learning emerged through this study: interdependence, critical thinking of anthropocentrism, ecological crisis, symbiosis between human and non-human beings. This study also suggests directions of using picture books for ecophilosophy education.

10MWe급 건식 CO<SUB>2</SUB> 포집 플랜트 최근 운전 경험 및 경험 지식

이효진(Hyojin Lee),조성호(Sung-Ho Cho),박영철(Young Cheol Park),이창근(Chang Keun Yi) 한국신재생에너지학회 2017 한국신재생에너지학회 학술대회논문집 Vol.2017 No.9

예비교사들의 교육실습경험에 근거한 교원양성 교육과정 개선 방안 탐색

남윤경(Nam Younkyeong),이효진(Yi Hyojin),김혜영(Kim Hyeyoung),정주훈(Jeong JuHun) 부산대학교 교육발전연구소 2019 교육혁신연구 Vol.29 No.1

연구목적: 본 연구는 예비교사들의 교육실습 경험을 바탕으로 교원양성 교육과정 개선에 대해 제안한 것이다. 연구방법: 2018년에 지방 거점 국립대학(P대학)에서 교직과정을 이수하고 교육실습에 참여한 537명을 대상으로 교육실습경험에 대해 설문 내용 중 자유기술형 문항 응답 내용을 주요 자료로 활용하였다. 내용분석(content analysis)과 네트워크 텍스트분석(Network Text Analysis)을 이용하여 본 연구에서 설정한 연구문제에 따라 예비교사들이 실습 과정에서 느끼는 어려움, 교육실습의 개선점, 교원양성기관 교직과정의 개선점을 분석하였다. 연구결과: 주요 연구 결과는 다음과 같다. 첫째, 예비교사들은 교육실습 중 수업기술 미흡으로 인한 학생 통제 및 수업 준비에서 가장 크게 어려움을 느끼고 있었다. 둘째, 예비교사들은 실습학교 차원에서는 교생에 대한 존중의 분위기 형성을, 교육부 및 교육청 차원에서는 실습기간 확대를 요구하였다. 셋째, 예비교사들은 교원양성 교육과정에서 수업시연 및 수업설계 기회 확대와 현장에 적용 가능한 강의 내용 강화를 적극 요구하였다. 결론 및 제언: 이상의 연구 결과를 바탕으로 교직과목에서 수업시연 기회 확대 및 학생 동기유발 중심의 수업 역량 개발 강화, 교육실습 전․후로 교원양성기관과 실습학교 및 학교 현장과의 연계 필요, 교육실습 기간 확대 등 교육실습 프로그램의 개선 방안을 제안하였다. Purpose: The purpose of this study is to explore ways to improve the teaching practicum based on the experiences of preservice teachers. Method: In 2018, 537 students who completed the required teaching courses for teacher certificate at the national university (P university) participated in the study. The questionnaire survey and open-ended questions the students conducted on the experience of teaching practicum were used as the main data. The content analysis and the network text analysis were applied to find out the difficulties of the preservice teachers in the course of the study, how to improve the teaching practicum, and how to improve the teacher training course respectively. Results: The main results are as follows. First, preservice teachers felt the greatest difficulty in student control and class preparation due to insufficient teaching skills during teaching practicum. Second, the preservice teachers asked the formation of an atmosphere of respect for the students(preservice teachers) at the training school level and the extension of the training period at the Ministry of Education and the Education Office level. Third, preservice teachers actively demanded classroom demonstration, instructional design opportunity expansion, and reinforcement of lecture contents that can be applied to the field. Conclusion: Based on the results, we suggest ways to improve teaching practicum; 1) increase the opportunity of class demonstration in teaching courses, 2) strengthen the development of teaching ability centered on student motivation, and 3) make a more concrete link between teacher training institute and practical training school and school site before and after training.

벤치급 CO₂ 포집공정에서 흡수반응기의 내부구조에 따른 K-계열 고체흡수제의 성능평가

김재영 ( Jae-young Kim ),임호 ( Ho Lim ),우제민 ( Je Min Woo ),조성호 ( Sung-ho Jo ),문종호 ( Jong-ho Moon ),이승용 ( Seung-yong Lee ),이효진 ( Hyojin Lee ),이창근 ( Chang-keun Yi ),이종섭 ( Jong-seop Lee ),민병무 ( Byoung-moo Mi 한국화학공학회 2017 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.55 No.3

본 연구에서는 벤치급 건식 CO₂ 포집 성능평가 장치에서 흡수반응기 내부의 구조와 형태에 따른 K-계열 흡수제(KEP-CO2P2, 한국전력공사 전력연구원)의 성능특성을 확인하였다. 흡수반응기 혼합영역(mixing-zone)에 구조와 형태가 다르게 제작된 두 종류의 열교환기가 적용되었으며, 각각 CASE 1과 CASE 2로 나뉘어 동일한 조업조건으로 연속운전을 수행하였다. 연속운전동안 흡수반응 온도는 75~80 ℃, 재생반응 온도는 190~200 ℃, 그리고 반응기체(CO₂) 농도는 12~14 vol%으로 설정하였다. 특히 흡수제의 흡수능 비교를 위해 흡수반응기 혼합영역의 차압을 400~500 mmH₂O로 유지하며 운전하였다. 또한 반응 후 채집한 시료는 반응성 비교를 위해 TGA를 이용하여 물성분석을 하였다. CASE 1 실험에서 CO₂ 제거효율과 동적흡수능은 각각 64.3%, 2.40 wt%으로 산출 되었고, CASE 2 실험에서 CO₂ 제거효율과 동적흡수능은 각각 81.0%, 4.66 wt%으로 산출되었다. 또한 반응 후 흡수제에 대한 TGA 측정 결과의 무게감량을 이용하여 흡수제의 동적흡수능을 계산한 결과, CASE 1과 CASE 2 실험에서 반응 후 흡수제의 동적흡수능은 각각 2.51 wt%와 4.89 wt%으로 산출되었다. 결론적으로 동일한 조업조건에서 흡수반응기 내부에 삽입되는 열교환기의 구조와 형태에 따라 흡수제의 성능 차이가 있는 것을 확인하였다. In this study, the performance characteristics of the K-based sorbents (KEP-CO2P2, KEPCO RI, Korea) has been studied in relation with the heat exchanger structure and shape in a mixing zone of the carbonator in the benchscale dry CO₂ capture process. Two types of heat exchangers (different structure and shape) were used in the carbonator as CASE 1 and CASE 2, in which the experiment has been continuously performed under the same operating conditions. During the continuous operation, working temperature of carbonator was 75 to 80 ℃, that of regenerator was 190 to 200 ℃, and CO₂ inlet concentration of the feed gas was 12 to 14 vol%. Especially, to compare the dynamic sorption capacity of sorbents, the differential pressure of the mixing zone in the carbonator was maintained around 400 to 500 mm H₂O. Also, solid samples from the carbonator and the regenerator were collected and weight variation of those samples was evaluated by TGA. The CO₂ removal efficiency and the dynamic sorption capacity were 64.3% and 2.40 wt%, respectively for CASE 1 while they were 81.0% and 4.66 wt%, respectively for CASE 2. Also, the dynamic sorption capacity of the sorbent in CASE 1 and CASE 2 was 2.51 wt% and 4.89 wt%, respectively, based on the weight loss of the TGA measurement results. Therefore, It was concluded that there could be a difference in the performance characteristics of the same sorbents according to the structure and type of heat exchanger inserted in the carbonator under the same operating conditions.

최적화된 silica-PEI 입자의 CO<SUB>2</SUB> 포집성능 평가

박영철(Young Cheol Park),김재영(Jae-Young Kim),조성호(Sung-Ho Jo),이승용(Seung-Yong Lee),문종호(Jong-Ho Moon),김현욱(Hyunuk Kim),이창근(Chang-Keun Yi),조항대(Hang-Dae Jo),우제민(Je-Min Woo),서정윤(Jung-Yoon Seo),이효진(Hyojin Lee),이도 한국신재생에너지학회 2017 한국신재생에너지학회 학술대회논문집 Vol.2017 No.9

초등 생태철학교육의 가능성과 방향 탐색

이효진 김기대 부산대학교 사범대학 과학교육연구소 2014 교사교육연구 Vol.53 No.1

he ecological crisis is a global issue to which deep ecologists identify anthropocentrism as an attributing factor and propose ecocentrism as an alternative value to address the crisis. Anthropocentrism is derived from a dichotomous value of thinking human beings (the self) are independent of the other (non-human beings). This dichotomy causes a lack of concern for others and lacks a holistic value. Ecocentrism is a holistic value which focuses on the interdependence of self and others which can be fostered through ecophilosophy education. The purpose of this study investigated the possibilities and directions of ecophilosophy education for elementary students. Ecophilosophy education for elementary students is aimed to: 1) encourage students deviate from anthropocentrism by expanding their range of thinking to include ecocentrism 2) to foster the students' basic philosophical thinking, 3) to apprehend the human being's niche as an ecological being and to develop appropriate attitudes, and 4) to have students express their experiences and thoughts to foster empathic attitudes towards others through a learning community. Elementary education is particularly important because the individual's values are developed during this period. However it is difficult to find ecocentric contents within the existing curriculum, in part, based on the misunderstanding that philosophy is too difficult for elementary students.However, according to Matthews (1989), philosophy education focusing on ‘doing philosophy’is possible for young students. In the process of 'doing philosophy', students think deeply by repetitive questioning and can grasp ecological views naturally.