• Journal of The Korean Association For Science Education
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• v.37 no.3
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• pp.407-416
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• 2017

In this study, we investigated the processes of analogy change and the characteristics of discussions in collaborative activity of self-generated analogy. Twenty-four high school students in Seoul participated in this study. We implemented science instructions based on collaborative activity of self-generated analogy. We compared personal analogies, group analogies, and modified group analogies in order to analyze the processes of analogy change. We also analyzed the characteristics of group and classroom discussions in the science instructions. The analyses of the results indicated that the processes of analogy change were categorized into three patterns; adding shared attributes, recognizing unshared attributes, and revising mapping errors. They selected a group analogy from analogies of their group members by considering inclusiveness, originality, and familiarity. They perceived the activity of self-generated analogy as subjective and creative. Therefore, they felt little pressure of self-generated analogy and there were little conflicts in group discussions. On the other hand, various analogies were suggested in classroom discussions and the competitive atmosphere of classroom discussions led students to focus on unshared attributes. At the stage of modifying group analogies, they added unshared attributes as limitations of the group analogy and changed their group analogy not to have unshared attributes. There were no cases of generating a new analogy. Some suggestions to implement collaborative activity of self-generated analogy in science teaching effectively are discussed.

• Journal of Engineering Education Research
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• v.18 no.3
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• pp.46-58
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• 2015

Informal engineering education program for high school students was developed to cultivate engineering literacy using the human resources and facilities of university. Plant factory, a smart farming technology, was selected as a main theme, and the novel engineering camp program involving engineering design activities and intra-linter-team works was planned. The camp program was applied to 38 high school students in an active learning classroom. Five teams were constructed according to elemental technologies such as biotechnology, information-communication technology, energy engineering, mechanical engineering and architectural engineering, and the students were participated in intra- and inter-team activities to achieve the final goal of 'the construction of a plant factory in school'. The team works were conducted according to the eight steps of engineering design process (identifying the problem and need, identifying criteria and constraints, brainstorming possible solutions, selecting the best possible solution, constructing a prototype, testing and evaluating the solution, communicating the solution, and refining design). Participants' satisfaction survey showed that the satisfaction on the contents of engineering design was 4.48 on 5-point Likert scale. The participants' satisfaction on creative activity and systematic methodology was 4.43 on 5-point Likert scale. 97% of participants responded positively to team works, and 92% of participants were satisfied with career mentoring activity supplied by undergraduate/graduate students. These results indicates that the engineering camp program involving engineering design activity and intra-/inter-team works can contribute to cultivate engineering literacy such as creativity, problem solving ability, collaboration, communication skills for high school students, and to increase their interests in engineering fields.

• Journal of The Korean Association For Science Education
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• v.41 no.6
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• pp.501-517
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• 2021

In the present age, when the development of science and technology is leading the changes, this study supports the view that students should possess the literacy to participate democratically and critically in socio-scientific issues, and should be positioned as agentic and participatory citizens. Accordingly, we implemented a club activity that emphasize climate social action for elementary students, and explored how students were positioned in relation to climate change. In this study, position is defined as a complex cluster of rights and duties that students have in relation to climate change. The club activity was implemented throughout 46 sessions from March to July, 2019 for 11 sixth graders of 'H elementary School' in Seoul, and transcripts of video and interviews were analyzed by means of a constant comparison method. In the course of the activity consisting of three steps, the students exhibited different positioning and they are as follows: In the global warming modeling activity for Step 1, students were positioned as 'active learners', but at the same time, they showed a contradiction in being positioned as 'apprentice'. In the student-led research activities inherent to Step 2, they were positioned as 'scientists who design and conduct research' and 'bystanders' due to the controversial nature of SSI knowledge. As students participate in the social actions involved in Step 3, the position changed from 'elementary school students facing difficulty in making a change' to 'participatory citizens creating changes.' This study is significant because it shows students' potential to promote participatory and democratic citizenship through action-oriented SSI activities. In addition, pedagogical approaches were discussed dealing with the contradictions and limitations of positioning.

• Journal of the Korean School Mathematics Society
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• v.10 no.2
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• pp.263-288
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• 2007

The purpose of this study is to search the effective teaching-learning program by considering how affect on formation of the process-object perspective of linear function using Excel. In this study we analyzed function units in textbook and examined how Excel affect on the formation of the process-object perspective of linear function. Teaching experiment was based on qualitative case study and performed for five classes with five 8th graders. Data were gathered through observations, audio-taped interviews, video recording of the students 'work, students' worksheets, and detailed field notes. Findings indicate that exploration learning environment using Excel could supplement paper-and-pencil environment. We found that intuitive, dynamic, explorative, feedback skills via Excel can play the role of scaffolding supporting formation of process perspective object perspective of linear function.

• The Journal of the Korea Contents Association
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• v.14 no.7
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• pp.395-406
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• 2014

This research observes how an adolescent's usage of social network services is related with media use time, and also tries to verify how a parent's participation in acting to limit usage time serves as a mediating effect. For this analysis, data from The Korean Information Society Development Institute [Korea Media Panel Research] was used, being a survey conducted on 1,572 students from primary to secondary and high schools nationwide. The subjects' gender in the final analysis was 818 male students and 754 female students. In addition, primary school students consisted of 672 individuals, 416 were from secondary and 484 from high schools. To verify the appropriateness of the model proposed in this research, analyzed through the structural equation, using social network services(SNS) was not shown to have an effect on media usage time. However, there was an indirect effect from the use of alternative activities. In addition, the parent's limitation of usage showed no effect on media use time. This research attempts to identify the reasons why parents' limiting the usage time, along with alternative activities, do not have any significant effect in reducing media usage time in this era of smart media evolution. Further, this research hopes to suggest meaningful and political implications for the nation and society to understand and resolve media addiction.

• Journal of The Korean Association For Science Education
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• v.38 no.1
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• pp.11-26
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• 2018

The purpose of this study is to investigate teachers' responsive practices in whole class discussion after small group argumentation and the underlying epistemological framing. Three teachers and 84 students participated in this study by engaging in argumentation activities about the sensory system. We recorded both their discussions in the classes and our interviews with the teachers, which were transcribed for analysis. The results of the analysis showed that the teachers' responsive practices and the epistemological framing were categorized into four types. By framing the discussion as 'reaching the correct answer through discussion,' the teacher focused on whether students' ideas corresponded to scientific concepts and transferred scientific ideas to the students. By framing the discussion as 'eliciting appropriate conceptual resources and developing them into a scientific idea through critical evaluation,' the teacher engaged in the students' discussion as another participant, and considered the small groups' arguments as resources that could develop into scientific concepts. By framing the discussion as 'sharing small groups' arguments,' the teacher responded by asking for clarification of each group's argument, considering it as a valid argument in its own way. By framing the discussion as 'reaching a consented argument through critical evaluation,' the teacher negotiated students' critical evaluation and revision of the arguments. We explored the implications and limitations of each type of responsive practice and considered that the results of this study will contribute to developing teachers' responsive teaching strategies in argumentation activities.

• School Science Journal
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• v.12 no.2
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• pp.274-286
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• 2018

The role of instruments in scientific inquiry is very important. As science and technology develop, science inquiry instruments are also changing. IoT-based inquiry tools and output data, which are newly introduced in science inquiry class, can play a role in reaching the goal of scientific inquiry. The aim of this study is to find the appropriateness of digital inquiry instruments based on Kirschner and Kreijns (2004).T he students who participated in this study were 8 middle school students located in Seoul and they investigated the quality of classroom air. During the four months of the inquiry activity, we had participant observation and retrospective interviews. We recorded the data, analyzed it, and coded it in terms of educational affordance. As a result, there are four educational affordance of digital inquiry instruments. First, it stimulates students' interest and motivation to learn basic knowledge for data processing, because digital inquiry instruments deals with real-life data. Second, the digital inquiry instruments as a complex sensor made a big data so it serves as an affordance that leads to hypothetical hypotheses. Third, because of the features and limitations of the digital inquiry instruments itself, it shapes and limits the design of the science inquiry method. Fourth, since the data is measured in real time, the amount of data is enormous. So the digital inquiry instruments serves as an affordance of increasing the information processing competence to analyze data. In order for science inquiry activities based on digital inquiry tools to be activated, various policy and economic supports are needed, such as the science environment, the contents of the software, software training, and guided learning materials.

• Journal of the Korean earth science society
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• v.32 no.2
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• pp.225-238
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• 2011

The purpose of this study was to explore the factors that are critical for successful scientific inquiry activity in the classroom and to analyze the students' abilities of 'Doing' scientific inquiry. Two hundred and forty gifted science students in grades $7^{th}$ and $8^{th}$ participated in this study and demonstrated their abilities of framing questions and designing investigation through a survey questionnaire. The survey was developed for measuring factors in terms of personal and interactive variables that are needed for 'Doing' a successful scientific. Additionally, two other questionnaires were developed to measure students' abilities of framing testable questions and designing the investigation in a sequence. The results were as follows: Students' learning motivation factors as personal variable (self-confidence about group and inquiry activity, views about inquiry value) also considered as influential for students' group inquiry activity. Other four components of interactive variable (grouping, kinds of task, physical context, and teachers' role) were found to be influential in successful students' 'Doing' group inquiry activity. In students' evaluation of group inquiry activity, the grouping factor was the most critical one for a successful 'Doing' inquiry activity. Participating students showed some level of inability of in the process of framing inquiry question and designing investigation.

• Communications of Mathematical Education
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• v.12
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• pp.489-507
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• 2001

교수 ${\cdot}$ 학습 과정에서 계산 능력 배양이 목표인 영역을 제외하고는, 복잡한 계산, 수학적 개념 ${\cdot}$ 원리 ${\cdot}$ 법칙의 이해, 문제 해결력 향상 등을 위하여 가능하면 계산기나 컴퓨터를 적극 활용하도록 한다. 제 7차 교육과정에서는 수학적 힘의 신장을 구현하기 위한 실천적인 항목 중 다음과 같이 교수 ${\cdot}$ 학습과정에서의 technology의 활용을 적극 권장하고 있다. 이는 곧 수학교육과 실생활이 서로 밀접한 관계를 가지고 있음을 의미하는 것이다. 이런 새로운 움직임에 따라 계산기 활용에 대한 관심과 이를 수업에 이용하려는 방안을 적극 모색하고 있으며 이미 많은 자료들이 간행되고 있다. 그래픽 계산기는 컴퓨터와는 달리 많은 자료를 내장하고 있지는 않지만 휴대가 간편하고 개별적으로 사용할 수 있어 학교 수업시간 중 활용하는 데에 큰 장점을 가지고 있다. 또, 수학의 교수 ${\cdot}$ 학습 과정에서 그래픽계산기는 학생들의 흥미를 자극하고, 시각적인 힘을 활용하고, 수학적 사고력을 향상시키며, 문제를 탐구하는 과정에서의 단순한 계산을 효과적으로 처리할 수 있도록 도와준다. 뿐만 아니라 수학의 내적 영역과 수학의 외적 영역을 연결시키는 힘과 학습 과정에서 학생의 주도력을 강화시켜줄 수 있다. 그러나 계산기의 사용 자체가 목표가 될 수는 없으며 그래픽 계산기의 사용으로 학생들의 계산능력을 하락시켜서도 안된다. 이를 위해서는 적절한 교수 ${\cdot}$ 학습법의 개발과 연구가 끊임없이 지속되어야 할 것이다. 그래픽계산기는 함수, 통계 단원에서 자료를 분석하고 그에 적합한 식을 찾는 과정에 매우 유용하게 이용된다. 이는 재량활동이나 특기적성활동 시간에 조작활동을 통하여 개념에 대한 다양한 창의적인 표현을 할 수 있는 기회를 제공하기도 한다. 다음은 함수식을 이용하여 여러 가지 디자인을 할 수 있는 예를 그래픽 계산기를 통하여 보여준다. 생활 속의 여러 가지 모양들은 대체로 함수식으로 표현될 수 있다. 그래픽 계산기는 함수식을 입력하여 그래프의 형태를 관찰하고 그 특징을 살펴보는데 매우 유용하며 제한된 변역에서 여러개의 함수식을 입력하여 원하는 모양의 디자인을 해 볼 수 있다.

• 한국정보교육학회:학술대회논문집
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• 2008.01a
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• pp.85-90
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• 2008

현재 학교의 컴퓨터 교육이 소프트웨어 활용 측면에서 벗어나 컴퓨터과학 교육을 강화하는 쪽으로 방향을 전환하고 있다. 특히 2005년에 개정된 정보통신기술 운영지침에 따르면 초등학교에서부터 알고리즘을 학습 내용으로 다루도록 하였으며 이에 따라 초등학교 현장에서도 알고리즘을 쉽고 효과적으로 지도하기 위한 다양한 교육 방법 연구가 필요해졌다. 현재까지 초등학생 대상의 컴퓨터과학 교육 연구는 대부분 초등학교 고학년을 대상으로 구체적인 조작과 활동 중심으로 제한되었다. 이에 본 연구에서는 정렬 수행 과정이 시뮬레이션되도록 제작한 애니메이션 컨텐츠를 통해 여러 알고리즘의 방법을 경험하도록 하는 ICT 기반의 알고리즘 교수-학습 과정을 설계하여 저학년에 적용하고 성취도와 학생들의 반응을 분석하였다.