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해양 플라스틱 쓰레기로 인한 문제와 해결책에 관한 초등학생의 인식 조사
문공주,서경운,강은희,황요한 한국초등과학교육학회 2020 초등과학교육 Vol.39 No.3
This study aims to explore how elementary students perceive and approach the issue of plastic debris in marine habitats by examining students’ perspectives on the ecosystem and environmental solutions. The study was conducted to 143 Grade Four elementary school students in Seoul. After implementing two class-units on plastic waste, students’ constructed responses on the problem of and solutions to plastic debris in marine habitats were collected. Data were analyzed through semantic network analysis and the keywords were visualized to reflect their relationships. Furthermore, students’ responses on how they perceive environmental problems were further analyzed based on the following analysis criteria: students’ perspectives on the ecosystem, the level of complexity of food chain(s), and the scope of their perspective. Also, student responses on environmental solutions were classified to be either at a personal or social level. Through semantic network analysis, keywords identified for students’ perceptions on the problem were the sea, plastic, debris, animals, living things, humans, extinction, while keywords extracted for the solutions were plastic, debris, recycling, disposable, and I. Based on the analysis criteria, it was found that students were well aware of the food chain concept, could perceive the ecosystem as having comprised of both biotic and abiotic factors, and could approach the problem beyond the scope of the marine environment. Also, most students mentioned the solutions only at a personal level. Based on the findings, implications on how to move forward in educating environmental issues related to the ecosystem in science education is further discussed.
수학 및 과학 간 지적 자원의 사용: 이론적 모형에 대한 실증 연구
최경미 ( Choi Kyong Mi ),서경운 ( Seo Kyungwoon ),( Brian Hand ),황지현 ( Hwang Jihyun ) 한국수학교육학회 2020 수학교육 Vol.59 No.4
학생들이 수학과 과학을 배울 때 개발 및 사용하는 지적 자원의 이론적 모형을 구성하였다. 9,300명의 미국 4학년 학생들의 수학 과학 성취도 평가의 응답을 통계적으로 분석하여 이 이론적 모델을 검증하였다. 그 결과는 이론적 모형이 타당함을 보여주며, 4학년 학생들의 과학 학습에서 인식적 실천은 수학 학습에서 인식적 실천의 발달에 영향을 준다. There have been mixed reports about the idea of utilization of resources developed from one discipline across disciplinary areas. Grounded with the argument that critical thinking is not domain-specific (Mulnix, 2012; Vaughn, 2005), we developed a theoretical model of intellectual resources (IR) that students develop and use when learning and doing mathematics and science. The theoretical model shows that there are two parallel epistemic practices students engage in science and mathematics - searching for reasons and giving reasons (Bailin, 2002; 2007; Mulnix, 2012). Applying Confirmatory Factor Analysis and Structural Equation Model to the data of 9,300 fourth grade students' responses to standardized science and mathematics assessments, we verified the theoretical model empirically. Empirically, the theoretical model is verified in that fourth graders do use the two epistemic practices, and the development of parallel practices in science impacts the development of the two practices in mathematics: A fourth grader's ability to search for reasons in science affects his or her ability to search for reasons in mathematics, and the ability to give reasons in science affects the same ability use in mathematics. The findings indicate that educators need to open ideas of sharing development of epistemic practices across disciplines because students who developed intellectual resources can utilize these in other settings.