• Journal of Korean Home Economics Education Association
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• v.24 no.1
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• pp.73-84
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• 2012

The purpose of this study was to explore the role of home economics education in a low fertility society in the contexts of curriculum contents, community involvement, public policy participation, and advocacy. The results showed following. First, home economics is a key subject matter in dealing with a low fertility problem among 2007 revised curriculum for secondary education level. Home economics curriculum contents was systematically organized through 8th grade to 10th grade in 4 units, where as curricula contents of social studies, science, and moral education deal with a low fertility problem in partial. Second, it is proposed to be active in community involvement incorporating with secondary education, college education, and lifelong education by service learning, outreach program, and extension program. Third, public policy and advocacy participation of home economics teachers are crucial for transformative leadership and practice in enhancing the condition of individual, family, and community wellbeing such as a low fertility problem. To perform this role of home economics education, home economics teachers should participate in developing curricula and teaching materials for the extra curricula activity, creative experiencing activity, and service learning activity. Home economics teacher educators also should actively involved in outreach program and extension program as well as in public policy advocacy activity for solving a low fertility problem.

• Journal of the Korean Chemical Society
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• v.48 no.6
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• pp.645-653
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• 2004

The purpose of this study was to compare and analyze the cognitive levels of 11th grade students and those required in high school chemistry I textbooks standardized by the 7th national education curriculum. For this study, the cognitive development stages of 456 11th grade students were surveyed using short-version GALT (group assessment of logical thinking). Furthermore, 15 basic concepts were extracted from the contents on water and air, 2 units in chemistry I order to analyze the cognitive levels necessary for understanding high school textbooks, using CAT (curriculum analysis taxonomy). The results showed that 52.5% of the surveyed 11th grade students reached the formal operational level, 28.3% transitional levels, and 19.5% concrete operational levels. 68.9% of the academic high school students and 6.6% of the technical high school students reached the formal operational levels, and the ratio of formation was very different in each logics. As a result of the analyzing the cognitive levels needed for understanding chemistry I textbook contents, in spite of a change in national education curriculum, there were no great change in cognitive levels required by scientific concept except some inquiry activities. The cognitive levels in high school chemistry I textbooks by the 7th national education curriculum appeared higher than the cognitive levels of 11th grade student, but cognitive levels of inquiry activities were similar to the cognitive levels of the students. Chemistry teachers thought of chemistry I textbooks by the 7th national education curriculum as desirable because scientific concepts were reduced and a lot of real life materials were adapted. However, they pointed out a problem of difference in contents levels compared with chemistry I textbooks because scientific concepts were greatly reduced in chemistry I textbooks. The cognitive levels required in chemistry I textbooks still appeared higher than those of the students. Consequently, various teaching and learning methods and materials will have to be developed to be suitable for the students' cognitive levels.

• 한국지구과학회:학술대회논문집
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• 2006.02a
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• pp.94-99
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• 2006

본 연구에서는 고등학교 지구과학 교과서 분석을 통해 지구과학 그래프의 주요 유형과 특징을 파악하고 지구과학 그래프 관련 검사지를 제작, 투입하여 고등학생들의 지구과학 그래프 해석 능력과 인식을 분석하였다. 지구과학 그래프는 타 과학 과목에 비해 그래프의 수가 많고 그 유형이 다양했다. 특히, 선 그래프와 등치선도가 많았으며, 선 그래프 중에는 다중 선 그래프와 YX 그래프 등의 비율이 높았다. 고등학교 2, 3학년생 111명을 대상으로 한 검사지 1단계에서는 '마그마의 생성 조건', '지구 자기장의 영년 변화', '과냉각 물방울과 빙정의 포화 수증기압', 'H-R도' 등에 관한 문항의 정답률이 특히 낮았다. 검사지 2단계에서는 약 $56\%$의 학생들이 지구과학 그래프의 유형이 타 과학 및 수학 과목의 그래프와 차이가 있다고 응답했다. 검사지 3단계에서는 동일한 내용이라 하더라도 그래프의 형식이나 구체적인 표현 방법에서 학생들의 이해를 높일 수 있는 방안에 대한 고민이 필요함을 알 수 있었다. 본 연구에서 학생들은 '그래프의 유형'에 대한 이해가 다소 부족하고 자신에게 익숙한 그래프를 쉽다고 생각하는 경향을 보였다. 따라서, 과학 교육자나 과학 교육과정 설계자들은 학생들에게 그래프 연습의 기회를 많이 부여하고, '그래프' 자체에 관한 교육은 물론 지구과학의 학문적 특성과 관련지어 '그래프의 유형'에 관해 체계적인 교육을 해야 할 필요가 있다.

• Journal of The Korean Association For Science Education
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• v.34 no.3
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• pp.235-246
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• 2014

This study aims to explore how in-service science teachers adopt newly developed 'Science' focusing on the fusion of science based on 'the diffusion of innovation' model. For this study, we have explored five variables (i.e., perception of need, perception of support, innovativeness, perceived usefulness, self-efficacy of teaching, and intention to adopt) based on literature review and developed survey items to measure the level of five variables that in-service science teachers perceive. In addition, the path model of six variables explaining how in-service science teachers adopt an innovation was hypothesized by the literature review. A total of 349 in-service science teachers have participated in this survey study. First of all, results have illustrated that the levels of six variables have not significantly associated with in-service science teachers' teaching experiences, participation in professional development programs on 'Science' curriculum, and majors. In addition, the statistically acceptable model fit indices have illustrated that path model has been statistically valid to explain how in-service science teachers adopt newly developed 'Science' focusing on the fusion of science. The results have also illustrated that 'perception of support', 'perceived usefulness', and 'self-efficacy of teaching' exhibited strong mediating effects between other variables. For the successful establishment of newly developed curricula, textbook, or policies in science education in school, the level of teachers' intention to adopt innovations should be enhanced. This study will be useful for the development of new science teacher professional development programs to promote the level of teachers' intention to adopt innovations.

• Journal of Science Education
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• v.37 no.1
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• pp.23-39
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• 2013

Science teachers' perception on their preparation program can help in conceptualizing how science teachers could be prepared. Based on this premise, this study aims to investigate preservice and inservice science teachers' perception on their teacher preparation programs with a focus on the coherence and balance of program. For this purpose, 20 preservice and 39 inservice science teachers were participated. Selection form and open-ended form questionnaires were developed to survey science teachers' perception on their program. The results of study are as follows: Firstly, participating preservice and inservice science teachers perceived the coherence of their program as moderate. The most and least coherent category of program was 'planning & preparation' and 'professional responsibilities' respectively. Inservice teachers perceived the program less coherent than preservice teachers in all four categories. Secondly, participating preservice and inservice science teachers perceived that practical elements were deficient compare to theoretical elements in light of balance of the program. Lastly, participating preservice and inservice science teachers perceived that current science teacher preparation program was biased to test-driven curriculum, and four domains of the program (subject matter knowledge, pedagogical content knowledge, general pedagogical knowledge, and teaching practicum) need to be more strongly connected to secondary school context. Alternative ways to be more coherent and balanced science teacher preparation program were also discussed based on the research.

• Journal of The Korean Association For Science Education
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• v.29 no.4
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• pp.423-436
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• 2009

This study aims to develop an analytic framework that can be used to classify scientific models in science textbooks according to modes and attributes of representation and to investigate types of scientific models presented in the biology section of science textbooks for the $7^{th}$ to $10^{th}$ grades. The results showed that modes of representation of scientific models are related to the nature of sub-areas of biology sections. Generally, the iconic model and symbolic model were in dominant use, including drawings of organs and explanations of working of systems. However, the chapters on 'The Organization of Life' and 'The Continuity of Life' showed a relatively high frequency in use of the actual model. The theoretical model was presented in a part of 'The Continuity of Life', due to its highly abstract characteristics. Moreover, the gestural model and analogical model showed very low frequency. From the perspective of attributes of representation, frequency of the static model was very high, while one of the dynamic models was very low. Therefore, efforts to recognize the properties of scientific concepts more clearly and to develop diverse types of models that can represent the concepts adequately are required. Analysis of these types of scientific models can offer recognition of the usefulness and limitations of models in representing the concepts or phenomena, and can help us to design adequate models depicting particular properties of given concepts. Also, this type of analysis may motivate researchers to strive to reveal correct methods for and limits of using the scientific models that are presented in existing science textbooks, as well as to provide useful information to organize the science textbooks according to the revised $7^{th}$ national science curriculum.

• Journal of the Korean Chemical Society
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• v.45 no.4
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• pp.357-369
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• 2001

This study aimed to analyze the evolution of general ideas concerning the element and the atom. In the scientific viewpoint, the modern idea of the element has been variously revised by the ancient Greeks, Boyle-Lavoisier, and Dalton. The definition of the atom was confused with that of the element from the ancient Greecian era to Lavoisier's era. The definition was also changed by Dalton and Rutherford. An analysis of the definitions of element and atom as presented in science textbooks for secondary school students and in general chemistry textbooks revealed that these definitions from diverse eras are confusing and inadequately explicated. The definition presented in one textbook was contradictory to the definitions in other textbooks. This tendency has been sustained in the textbooks from the 4th to 6th science curriculum. Therefore, we need to clarify the definitions of element and atom in order to help the students gain a better understanding of these scientific concepts.

• Journal of The Korean Association For Science Education
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• v.34 no.4
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• pp.349-357
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• 2014

The purpose of this study is to consider the implications of science experiment in class and to seek a direction for its improvement. For this purpose, Science textbooks, teachers' cognitions, and classroom activities have been analyzed to find out how many and what kind of levels of inquiry elements are included in those. In this study, 22 teachers have participated in the questionnaire to investigate their perception about experiment class, and the two instruction cases in two classes of 9th grade have also been analyzed. Results show that most of the textbooks have included questioning, evidence collecting, explanation of phenomena, and connection with existing scientific knowledge. But the elements of communication and justification have been few. Most levels of the inquiry are teacher-led. Although the teachers thought communication and justification are important, their classroom activities does not coalesce with their thoughts. The students mostly spend their time with connecting evidence, they hardly explain the phenomenon based on the proofs as the results of experiment, and the activities of connection with the existing scientific knowledge, and communication and justification.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2006.05a
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• pp.483-487
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• 2006

설문조사를 통하여 목포지역의 환경교육 현황과 중학생들의 환경오염에 대한 인식을 조사한 결과는 다음과 같다. 1) 목포시에 소재한 14개 중학교중 2개교가 선택과목 중 환경교과를 선택하고 있었으며 대부분 학생들은 환경을 환경교과에서 보다는 과학, 사회, 기술 가정에서 배우고 있었다. 환경교육을 접하는 시간은 환경교과수업(17.5%)이나 관련교과목(28.1%) 보다는 특활 봉사활동시간(41.9%)이 높게 나타나 교과과정보다는 비교과과정에서 환경을 많이 배우는 것으로 나타났다. 2) 학생들이 느끼고 있는 환경오염의 정도는 '심각하다' 수준이 83%로 대부분의 학생이 심각하게 느끼고 있었으며 환경에 대한 개인적인 실천 행동은 쓰레기 분리수거(72%)와 환경보호활동(63.9%)에서 높게 나타났다. 3) 직 간접적인 환경교육을 받은 후 환경에 대한 관심도에 대한 질문에서 학생들의 57.7%가 환경교육을 통해 환경에 관한 생각과 태도가 개선되는 것으로 나타났다. 4) 현재 교육과정에서 환경문제를 배워야할 교과목으로 학생들의 54.8%가 환경교과과목이라고 응답하였다. 또한 환경교과의 필요성에 대한 질문에 대해 학생의 68.4%가 필요하다고 응답해 환경교과 필요성을 크게 느끼고 있었다.

• Journal of the Korean earth science society
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• v.39 no.6
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• pp.617-629
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• 2018

The purpose of this study was to explore the elementary school teachers' perceptions about making a model of volcanic activity. Thirty elementary teachers participated in the study after they in which they conducted the experiment of "Making a Model of Volcanic activity". A questionnaire was used to investigate how the teachers understood the strengths and weaknesses of the experiment in terms of the goals of school science inquiry. The results showed that 50-60% of the teachers were able to conduct the experiment as guided in the textbook regardless of their career or area of concentration. The teachers perceived that the experiment of current textbook was safe and useful for students to develop their creativity. However, they pointed out three major weaknesses of the textbook experiment: First, the textbook experiment does not clearly present the main purpose of the activity. Second, it does not appropriately reflect the natural volcanic activity. Third, it is a merely simple craft activity. In addition, the teachers agreed that the main goals of school science inquiry are the application of scientific knowledge, development of inquiry skills and cultivation of student's curiosity. However, the teachers perceived that the experiment of current textbook did not meet these three goals. They suggest that the experiment reflect the nature of real volcanic activities.