• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.6 no.2
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• pp.119-133
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• 2013

This paper is to present a new social network system that is convenient to group message system. For this system, we implement a group messaging system, chatting, position monitoring, file transfer, picture drawing and/or editing, photo management system, and we combine them as one group manager application based on smart system.

• The Journal of Korean Institute for Practical Engineering Education
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• v.2 no.2
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• pp.49-54
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• 2010

The functions and their graphs are very important parts in mathematical educations. But there seems be a lot of students studying the functions and their graphs without grasping the meaning of them and without interest with them. We present a learning method of how to match functions and their graphs with outlines of various shapes. That is, outlines of the shapes are assumed to be the graphs of the functions and the graphs will be plotted on the screen of a computer with help of the computer algebra system.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07b
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• pp.367-369
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• 2005

모델 체킹에서 모델의 크기가 커질수록 검사해야 할 상태 공간이 지수적으로 증가하는 것을 상태폭발문제라고 부르며, 이 문제를 해결하기 위해 추상화 기법이 사용된다. 본 논문에서는 네모라이즈 게임을 대상으로 추상화 기법을 적용하여 게임 모델의 상태 공간을 줄설 기존 방법으로 풀지 못했던 게임을 풀었다. 이 게임은 한붓그리기처럼 출발지부터 이동가능한 모든 지점을 한번만 거쳐, 목적지까지 가는 경로를 찾아내는 도달성 게임이다. 이 게임은 Esterel 언어로 모델링 되었다. Esterel은 동기적 언어로써 게임을 유한상태모델로 모델링하고 관련 모델 체커인 Xeve를 사용하여 모델을 검사한다. Xeve는 모델 체킹 후 특정 출력신호를 방출하기 위한 입력신호들의 시퀀스를 생성해준다. 이 시퀀스가 게임의 해답인 경로가 되는데 Xes라는 시뮬레이터를 통해 실제 정확한 해답인지를 확인한다.

• Journal of the Korean earth science society
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• v.28 no.7
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• pp.762-774
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• 2007

The purpose of this study was to investigate misconceptions about plate tectonics which spread widely among freshmen at high school with drawing. For this, we chose 6 conceptions about plate tectonics by analysis of 7th curriculum and of 11 kinds of science textbooks. Questionnaire of drawing about plate tectonics were developed depending on them. Data was collected from 134 students who was freshmen at high school in Daegu. The result of this study was as follows. First, In structure of plate, 'upper mantle type' and 'crust type' misconceptions were more than half of the respondents. Second, In distribution of plate, 'cracked earthquake zone type' and 'earthquake frequency type' misconceptions were more than half of the respondents. Third, In formation of ocean ridge at oceanic crust- oceanic crust divergent plate boundary, 'divergence type' and 'collision type' misconceptions were more than half of the respondents. Fourth, In formation of mountain ridge at continental crust- continental crust convergent plate boundary, 'collision type' misconceptions were more than half of the respondents. Fifih, In formation of mountain ridge at oceanic crust- continental crust convergent plate boundary, 'subduction type' and 'fault type' misconceptions were more than half of the respondents. Sixth, In transform-fault at oceanic crust- oceanic crust transform-fault boundary, 'direction type' and 'section type' misconceptions were almost half of the respondents. In this study, students' drawings about plate tectonics showed similar misconceptions. This imply that drawing conceptions can be used by the strong evidence of misconceptions which spread widely among students. Furthermore, this study has a significance that this conclusion is useful to teachers as basic teaching-teaming materials of plate tectonics.

• Journal of Korean Philosophical Society
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• no.88
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• pp.307-335
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• 2010

Gemäß der lernerorientierten Didaktik und Methodik des deutschen neuen Schulfaches "Praktische Philosophie" studiert die vorliegende Forschung die Unterrichtsmethoden zum fruchtbaren Philosophie-, Essay- und Ethikunterricht. Sie stellt die Unterrichtsmethoden unter der Gliederung von 1) Methoden für die Einführung in den Unterricht, 2) die für den Hauptteil des Unterrichts, 3) die für den Abschluss des Unterrichts, 4) die für Strukturierung des ganzen Unterrichts dar. Der zweite Teil wird wiederum in die Methoden der Form vom Sprechen und Horen, vom Lesen und vom Schreiben unterteilt. Wegen der Einschränkung vom erlaubten Umfang für den Aufsatz wird diese Forschung in zwei Aufsätze geteilt. Der erste Aufsatz behandelte den Teil 1) und den ersten Unterteil des Teils 2). Als Methoden für die Einführung in den Unterricht stellten sich Partnerinterview, Brainstorming und Schneeball dar und als Methoden der Form vom Sprechen und Horen Fishbowl, Pro-Kontra-Argumention, Gruppenarbeit und das sokratische Gespräch. Dieser zweite Aufsatz stellt Lesekompetenz, Lesestrategie, Textanalyse, Mindmapping, Dilemma, kooperatives Lesen und Placemat im Bezug auf Methoden der Form vom Lesen dar und das einfache und dialektische Argumentieren, das kreative Schreiben und Gedankenexperiment als Methoden der Form vom Schreiben. Als Methoden für den Abschluss des Unterrichts werden Blitzlicht, Feedback und Postersession und als Methoden für Strukturierung des ganzen Unterrichts Sandwich und Lernstop betrachtet.

• Education of Primary School Mathematics
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• v.27 no.1
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• pp.57-74
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• 2024

This paper analyzed the programming education specialized lessons presented in two types of elementary school mathematics textbooks according to the revised Japanese curriculum in 2017. First, this paper presented in detail how each activity is connected to Korean mathematics areas, what elements of mathematics can be learned through programming education, how each activity is structured, and how the actual programming according to the textbook activities is structured. In Japanese textbooks, geometry and measurement areas were presented the most among Korean mathematics content areas, and mathematical elements such as sequences, rules, and algorithms were most implemented for learning. Digital learning tools that make up actual programming present more elements than those presented in the textbooks and are presented in great detail so that students can do actual programming. Lastly, in blocks, motion, control, and calculation blocks were used a lot. Based on these research results, this study provides implications when conducting programming-related education in Korea.

• Journal of the Korean Society of Earth Science Education
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• v.10 no.3
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• pp.308-322
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• 2017

It is the purpose of the study to investigate how high school students understand the concept of carbon cycle according to their spatial perception ability. For this, a total of 30 male students and 33 female students, who belong to the science course of the 2nd grade at a general co-education high school located in a megalopolis of Korea and have finished the class of Earth Science I in the first semester, took part in the spatial perception ability test, and four male students and four female students were selected as members of two groups : one group of higher spatial perception ability and the other group of lower spatial perception ability, and they agreed to participate in the study and have got the test of the carbon cycle concept. The results are as followings. It was found that the students who had higher spatial perception ability recorded more scores in the carbon cycle concept, state change concept, and process concept at the factor of word association and the carbon cycle concept, state change and process concept at the factor of drawing than those who had lower spatial perception ability. Connecting link used in the systemic viewpoint was disclosed like this in the factor of causal map of those who had higher spatial perception ability : one student 2 and another one student 1 and the other two students 0 : and in the factor of drawing three students 1 and the other 0 ; But nothing was found in the factors of causal map and drawing of those who had lower spatial perception ability. In addition, it was also found that those students who had higher spatial perception ability, when compared with those students who had lower spatial perception ability, have understood the fact that carbon moves through the interaction of the earth system's lower parts; Three students, who showed higher spatial perception ability, had a low level of systemic thinking concept, and one student who had higher spatial perception ability and four students who had lower spatial perception ability did not have a systemic thinking concept.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.4 no.1
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• pp.142-163
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• 1993

A 8 year old boy with problems of hyperactivity, impulsivity received playpsychotherapy. Through the detailed examination of their contents and group supervision of play therapy session, common mistakes novice therapist make frequently and tasks in the initial phase of play psychotherapy are illustrated. Therapist's personality and anxiety frequently interferes therapeutic processes. Common mistakes therapist makes during initial phase of play therapy are ; therapist's over-enthusiasm, overinvolvement or non-responsiveness, premature or inappropriate interpretation and direct connection of play theme to reality. It is utmost important for the therapist to make positive and trusting relationship with the patient in the initial phase of the therapy. In order to do so therapist must accept the patient as he is, permit the patient takes his leads. And as a result, the Patient can go through corrected developmental experience. In conclusion, it is a therapist's main task to establish relationship.

• Journal of the Korean earth science society
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• v.32 no.7
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• pp.784-797
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• 2011

The purposes of this study are: (1) to develop educational program designed to improve high school students' knowledge integration and their system thinking skills about global warming and (2) to identify the change of students' system thinking level. The developed program was implemented to twenty seven high school students, and six students grouped into three highs and three lows in their performance were selected to analyze their level of system thinking. The word association, casual map and drawing were used to measure and identify any significant change. As a result, the low level system thinking group improved their system thinking skills for global warming and the earth and sub-systems after the intervention. However, participants' misconception remained the same. And the high level systems thinking group showed more organize system thinking skills about a global warming topic. It is suggested that more educational programs be developed on various topics in order for high school students to improve their systems thinking skills as well as knowledge integration of earth systems and earth environment in school curriculum.

• Journal of Korean Home Economics Education Association
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• v.25 no.1
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• pp.15-36
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• 2013

This study aimed to identify the effects of using storytelling techniques in sex education, in which students are encouraged to talk about their experiences with sex and love and helps them form their own sex values and decision-making skills related to sex. A five-period teaching-learning plan covering issues including safe, considerate and responsible sex was developed using the storytelling technique for 134 first-year students in 4 classes. 134 questionnaires were administrated through pre-and post-test and 38 worksheets applying a variety of storytelling activities were analyzed using content analysis. Students were found to have gained a more positive outlook on relationships and a considerate attitude towards others in sex. There was also a significant increase in items considering safe sex, including perceptions on contraception methods and selection of safe contraception methods. The students' sense of sexual responsibility was also enhanced. Results of content analysis found students to have shifted to sex focusing on love and responsibility, and to have grown a stronger sense of responsibility in their relationships. Furthermore, the respondents expressed interest in selecting proper contraception methods and held strongly negative perceptions about abortion.