• Title/Summary/Keyword: 과학탐구과정

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Global Value Chain Integration in the Korean Strawberry Industry: Focusing on Farmers in Jinju (한국 딸기산업의 글로벌 가치사슬 통합 과정: 진주시 농업인을 중심으로)

  • Sohyun Park
    • Journal of the Economic Geographical Society of Korea
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    • v.26 no.3
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    • pp.274-288
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    • 2023
  • While the integration into global value chains has garnered attention as a rural development strategy, less is known about why some integrations are successful while others are not. This study draws on rent theory and on empirical examples from Jinju and Nonsan, the two biggest strawberry production regions in South Korea, to explore the mechanisms of Jinju creating and exclusively retaining monopoly rents from the exports. Based on five months of fieldwork and in-depth interviews with stakeholders, the findings show that a producer-driven chain integration into the overseas markets was possible in Jinju due to the natural barriers to entry based on an exportable variety, as well as the region's climate conditions being suitable to the variety. Moreover, the farmers have attempted to retain the monopoly rents and extra profits from public supports by associating producers. The horizontally associated farmers stabilized their positions by enhancing their bargaining power against exporters, as well as by managing access to the public supports by controlling memberships.

The Preconception of the 4th Grade Elementary Students on Earthquake (지진에 관한 초등학교 4학년 학생의 선개념)

  • Kim, Soo-Jeong;Kim, Hyoungbum;Jeong, Jin-Woo
    • Journal of Science Education
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    • v.37 no.3
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    • pp.434-445
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    • 2013
  • The purpose of this study is to aid the teaching strategy for the teacher by investigating the preconception of the earthquake for 4th grade students in elementary school before learn the curriculum. For this, 31 grade students who lived in Seongnam in Gyeonggi province were interviewed with the questionnaire. The following is the findings. On the definition of an earthquake, 64.9% of the students had scientific conception. On the question of 'what happens on the ground when there is an earthquake', 59.2% of the students responded shaking or cracking of the earth, ground, things or building. On the question of 'what a person should do when there is an earthquake', most of the students responded by more than two answers. In contrast, on the causes of an earthquake, there were the largest percentage (35.3%) students who answered they didn't know. Except for one student, there were no students had talked about scientific conception. On the question of 'what happens below when there is an earthquake', 26.3% of the students responded they didn't know. On the place where an earthquake occurs rather frequently, 22.2% of the students mentioned an island. On the reason, 39.9% of the students responded they didn't know and there were no students with scientific answers. This study showed 4th grade students had scientific conception on the definition of an earthquake, and they had many experience interaction with external environment on 'what happens on the ground when there is an earthquake', 'the place where an earthquake occur rather frequently'. However the students had relatively small experience on the causes of an earthquake, on 'what happens below the ground when there is an earthquake', and earthquake-prone areas. Based on this study, additional research must be conducted on science in which the students' preconceptions is investigated to connect back to curriculum development. In addition, consideration must be given on how to integrate the thinking processes of students during the curriculum development process.

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A Study on the Change of the Awareness of Teachers who participated in Social Constructionism Science Teacher Training program and Their Subsequent Teaching Practice (사회 구성주의 과학교사교육 프로그램에 참여한 교사들의 인식 변화와 실천 연구)

  • Kang, Jong Lye;Kim, Jung-Eun;Paik, Sung-Hye
    • Journal of The Korean Association For Science Education
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    • v.35 no.6
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    • pp.939-947
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    • 2015
  • For secondary school teachers who attended 'A Social Constructionism Science Teacher Training Program', we analyzed their processes of cognizance change as well as whether they put its results into practice in the field of education, so as to find out the efficacy of the program. 'A Social Constructionism Science Teacher Training Program' consists of three phases based on La main ${\grave{a}}$ la $p{\hat{a}}te$, a French experience-oriented science education program. In its first phase, a study of the philosophy of La main ${\grave{a}}$ la $p{\hat{a}}te$ was made, together with a search for examples of creativity education. In its second and third stages, real education programs were developed for designated themes and free themes, respectively, and then discussions were made. It was a ten-session program, with each session comprising a four-hour sub-program. All activities were both visually and orally recorded, while the participants were asked to write reflective journals for each class. An additional survey and interview were conducted six months later to check if the seven selected secondary school teachers put the results of the program into practice. It was found that changes may be made in the beliefs of teachers with the introduction of theories in teacher indoctrination, but the acquisition of practical knowledge that can be implemented in actual classes may be effectively secured by demonstrations and practice sessions. It was concluded that indoctrination should be conducted to lead participants to the level of practical planning from the level of mere belief so that the theories might actually be put into practice in the education field.

Misconception on the Yellow Sea Warm Current in Secondary-School Textbooks and Development of Teaching Materials for Ocean Current Data Visualization (중등학교 교과서 황해난류 오개념 분석 및 해류 데이터 시각화 수업자료 개발)

  • Su-Ran Kim;Kyung-Ae Park;Do-Seong Byun;Kwang-Young Jeong;Byoung-Ju Choi
    • Journal of the Korean earth science society
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    • v.44 no.1
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    • pp.13-35
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    • 2023
  • Ocean currents play the most important role in causing and controlling global climate change. The water depth of the Yellow Sea is very shallow compared to the East Sea, and the circulation and currents of seawater are quite complicated owing to the influence of various wind fields, ocean currents, and river discharge with low-salinity seawater. The Yellow Sea Warm Current (YSWC) is one of the most representative currents of the Yellow Sea in winter and is closely related to the weather of the southwest coast of the Korean Peninsula, so it needs to be treated as important in secondary-school textbooks. Based on the 2015 revised national educational curriculum, secondary-school science and earth science textbooks were analyzed for content related to the YSWC. In addition, a questionnaire survey of secondary-school science teachers was conducted to investigate their perceptions of the temporal variability of ocean currents. Most teachers appeared to have the incorrect knowledge that the YSWC moves north all year round to the west coast of the Korean Peninsula and is strong in the summer like a general warm current. The YSWC does not have strong seasonal variability in current strength, unlike the North Korean Cold Current (NKCC), but does not exist all year round and appears only in winter. These errors in teachers' subject knowledge had a background similar to why they had a misconception that the NKCC was strong in winter. Therefore, errors in textbook contents on the YSWC were analyzed and presented. In addition, to develop students' and teachers' data literacy, class materials on the YSWC that can be used in inquiry activities were developed. A graphical user interface (GUI) program that can visualize the sea surface temperature of the Yellow Sea was introduced, and a program displaying the spatial distribution of water temperature and salinity was developed using World Ocean Atlas (WOA) 2018 oceanic in-situ measurements of water temperature and salinity data and ocean numerical model reanalysis field data. This data visualization materials using oceanic data is expected to improve teachers' misunderstandings and serve as an opportunity to cultivate both students and teachers' ocean and data literacy.

Role Formation by Interaction Function and Pattern for Group Discussion Activity using the case of Environmental Education Camp for Undergraduate Student (대학생 환경교육캠프 사례에서의 집단 토의 활동에 있어서 상호작용 기능과 양상에 따른 역할 형성 양상)

  • Jung, Won-Young;Lee, Go-Eun;Shin, Hyeon-Jeong;Cha, Hyun-Jung;Kim, Chan-Jong
    • Journal of The Korean Association For Science Education
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    • v.32 no.4
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    • pp.555-569
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    • 2012
  • Many science education research and practices are recently emphasizing the importance of collaborative learning. This study also understands learning in aspects of socio-cultural context, and regarded the creation of meaning in a same-age group as an important learning process. This is most especially true in the premise that the formation of roles in a collaborative learning is important for successful interactive learning. This study aims to find out how roles form in a group. For this purpose, university students participating in a group discussion activity about energy flow and circulation of material were selected as research participants. Discussions among the nine students in one group consisted of cognitive conversations on the topic and operational conversations for preparing a presentation. Video-clips of the discussions were made and transcribed. For the analysis, we developed a framework that includes four interaction functions (cognitive, organizational, meta-cognitive, operational), four action elements (question, simple answer, providing opinion, response to opinion), and two to four intention elements by each action elements. As a result, a total of nine roles were revealed through the interaction function and element; cognitive questioner, operational questioner, simple answerer, operational suggester, organizational commander, operational commander, cognitive explainer, terminator, reflective thinker. These roles are re-classified into seven utterance patterns by the utterance order and object, and they were categorized into three role groups (facilitating interaction, sustaining interaction, finishing interaction). The result means that role formation and function can have influence on learning and interaction. This study is meaningful to the suggestion to collaborative learning including project-based learning, investigation, club activity, and for the re-illumination of the role in an aspect of the interaction.

Impacts of Collaborative Problem Solving for Character Competency (CoProC) Strategy on the Practical Character Competency and Collaborative Problem Solving Competency in Middle School Science (협력적 문제해결(CoProC) 전략을 통한 중학생의 실천적 인성 역량 및 협력적 문제해결력의 함양)

  • Cho, Hye Sook;Kwon, Dong Uk;Kang, Eugene;Park, Jongseok;Son, Jeongwoo;Nam, Jeonghee
    • Journal of The Korean Association For Science Education
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    • v.38 no.5
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    • pp.681-691
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    • 2018
  • The purpose of this study is to investigate the impacts of Collaborative Problem solving for Character competency (CoProC) strategy on the practical character competency and collaborative problem solving competency in middle school. For this study, 49 seventh grade students (two classes) were selected for use applying the CoProC strategy (CoProC group) while 46 students (two classes) were used for traditional lecture and experimental class (comparative group). In the result, CoProC group showed a statistically significant result in practical character competency than the comparative group. In the sub items of the competency, the CoProC group showed result statistically significant in cooperation, communication, responsibility, and positive self-understanding than the comparative group. Analysis of the effect size of students' practical character competency showed that the CoProC group results showed more effective than the comparative group in terms of care, cooperation, communication, honesty, responsibility, positive self-understanding, and self-regulation. In addition, we investigated the effect of the CoProC strategy on collaborative problem solving competency. As a result, it showed a large effect in the total score of collaborative problem solving competency. Among the sub items of the competency, 'exploration and understanding of members' showed a small size of effect and 'Establishing and maintaining team organization' showed a medium size of effect. 'Communication' and 'self-reflection' showed a large effect. CoProC strategy embedded in Science subject could improve students' collaborative problem solving competency through the process of scientific communication in the scientific inquiry process.

Three Teaching-Learning Plans for Integrated Science Teaching of 'Energy' Applying Knowledge-, Social Problem-, and Individual Interest-Centered Approaches (지식내용, 사회문제, 개인흥미 중심의 통합과학교육 접근법을 적용한 '에너지' 주제의 교수.학습 방안 개발(II))

  • Lee, Mi-Hye;Son, Yeon-A;Young, Donald B.;Choi, Don-Hyung
    • Journal of The Korean Association For Science Education
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    • v.21 no.2
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    • pp.357-384
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    • 2001
  • In this paper, we described practical teaching-learning plans based on three different theoretical approaches to Integrated Science Education (ISE): a knowledge centered ISE, a social problem centered ISE, and an individual interest centered ISE. We believe that science teachers can understand integrated science education through this paper and they are able to apply simultaneously our integrated science teaching materials to their real instruction in classroom. For this we developed integrated science teaching-learning plans for the topic of energy which has a integrated feature strongly among integrated science subject contents. These modules were based upon the teaching strategies of 'Energy' following each integrated directions organized in the previous paper (Three Strategies for Integrated Science Teaching of "Energy" Applying Knowledge, Social Problem, and Individual Interest Centered Approaches) and we applied instruction models fitting each features of integrated directions to the teaching strategies of 'Energy'. There is a concrete describing on the above three integrated science teaching-learning plans as follows. 1. For the knowledge centered integration, we selected the topic, 'Journey of Energy' and we tried to integrate the knowledge of physics, chemistry, biology, and earth science applying the instruction model of 'Free Discovery Learning' which is emphasized on concepts and inquiry. 2. For the social problem centered integration, we selected the topic, 'Future of Energy' to resolve the science-related social problems and we applied the instruction model of 'Project Learning' which is emphasized on learner's cognitive process to the topic. 3. For the individual interest centered integration, we selected the topic, 'Transformation of Energy' for the integration of science and individual interest and we applied the instruction model of 'Project Learning' centering learner's interest and concern. Based upon the above direction, we developed the integrated science teaching-learning plans as following steps. First, we organized 'Integrated Teaching-Learning Contents' according to the topics. Second, based upon the above organization, we designed 'Instructional procedures' to integrate within the topics. Third, in accordance with the above 'Instructional Procedures', we created 'Instructional Coaching Plan' that can be applied in the practical world of real classrooms. These plans can be used as models for the further development of integrated science instruction for teacher preparation, textbook development, and classroom learning.

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Research on the Changes of Beginning Science Teachers' Teaching through a Mentoring Program (멘토링 전후의 초임 과학교사의 수업 특징 변화)

  • Kwak, Young-Sun
    • Journal of the Korean earth science society
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    • v.31 no.4
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    • pp.403-417
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    • 2010
  • In this research, we investigated the effect of a mentoring program implemented in science classrooms taught by beginning teachers in order to support their professional development. As a baseline data, we examined the characteristics of beginning science teachers' teaching. Then we explored any changes in mentee teachers' teaching with the implementation of a mentoring program. The three mentor-mentee pairs participated in this study. We explored six teachers' classroom teaching episodes with their videotaped classroom teaching. Using open-ended interviews and group discussions taking place on a regular basis to analyze and compare classes of six teachers, we extracted the beginning teachers' teaching characteristics in light of teaching strategies. The common features of the participated mentee teachers' teaching are analyzed in terms of (1) classroom culture and management, (2) classroom discourse, and (3) science experiments. Through mentoring, mentee teachers recognized that increased and enriched classroom dialogues had an effect on students' content understanding. Mentee teachers also acknowledged not only the necessity of laboratory activities but also the roles and ways of managing the science activities. Ways to help beginning teachers develop instructional professionalism are discussed.

A Study of High School Students' Conceptions for Density (고체와 액체의 밀도에 대한 고등학생들의 개념 조사)

  • Cho, In-Young;Kang, Young-Jin
    • Journal of the Korean Chemical Society
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    • v.54 no.6
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    • pp.809-817
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    • 2010
  • The primary purpose of this study was to investigate high school students' conceptual understanding of density for solids and liquids in pure and mixed substances who had preceded formal school science instruction on density and related topics. A concept assessment on density was developed and administered by demonstrative experiments accompanied by a written assessment test method to 120 general high school students in a metropolitan city. The scientific conceptions and alternative conceptions from students' responses were identified and the percentages of them were calculated. Then, their alternative conceptions and implicit theories on density were analyzed. About half of the students couldn't differentiate weight-volume-density and regarded density as an innate property of matter. Furthermore, the greater the number of variables involved in an experimental condition of the question, the more complicated and undifferentiated students' density concepts were. Students employed more improper variables such as particle size, intermolecular distance, surface tension, polarity of the solvent, etc. in explaining counter-intuitive observations. The implications for school science instruction were discussed.

Learning the Civilization of Modern Science and Technology through Animation Film: Focusing on Michel Ocelot's (애니메이션 감상을 통한 근대 과학기술 문명 탐구 - 미셸 오슬로의 <세 명의 발명가>를 중심으로)

  • Youn, Kyung Hee;Choi, Jeongyoon;Park, Yooshin
    • Cartoon and Animation Studies
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    • s.49
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    • pp.267-297
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    • 2017
  • This paper attempts a close-reading of Michel Ocelot's short animation film, (1979), and proposes it as an available text in art appreciation class for young students. stimulates the students' attention and intellectual curiosity thanks to the exotic and fantastic atmosphere, beautiful mise en scene, and intriguing plot. Ocelot's technique of decoupage used in this film rejuvenates both the traditional folk art and Lotte Reiniger's early experiments in the history of animation film. Ocelot subverts the ideal of modern male adult subject as unique possessor of scientific knowledge and technology, by adopting a female figure and a young child, who is also female, as main characters. The imaginative and subversive power of animation contributes to creating posthuman beings beyond the homocentric figure of Vitruvian Man. The posthuman condition supposes that human beings have the equal relationship of continuum with not only other humans but also non-human beings like all living things and inanimate matters. In order to teach and learn the posthuman condition, it is necessary to conceive an interdisciplinary and integrated curriculum including art, science, philosophy, history, and social sciences. Animation film serves excellently as educational text for the integrated curriculum of the posthuman.