• Journal of the Korean Chemical Society
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• v.61 no.6
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• pp.388-401
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• 2017

In this study, we investigated the characteristics of curriculum design of pre-service chemistry teachers who participated in educational program for teaching in science museum. Three pre-service chemistry teachers at a college of education in Seoul participated. The educational program was composed of workshop, lesson planning and practice, and critique. After the workshop, we conducted semi-structured interviews based on pre-visit, during-visit, post-visit activities planned by the pre-service teachers. We observed and recorded their teaching practices in Gwacheon National Science Museum and following critique by their classmates. We also conducted final interviews. We used a framework for museum practice to analyze their curriculum design. The analyses of the results revealed that all planned their lessons in accordance with the National Science Curriculum, and considered geographical and psychological aspects in their pre-visit activities. They encouraged students to make joint products through small group activities, and gave students autonomy in choosing exhibits to facilitate spontaneous participation. However, they did not consider continuous aspects of pre-visit, during-visit, and post-visit activities. They did not effectively induce students to engage during-visit activities cognitively. They did not make post-visit activities connect students' experiences in science museum to personal experiences.

• Journal of the Korean Society of Earth Science Education
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• v.14 no.2
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• pp.123-135
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• 2021

In this study, we apply a lesson design process using an argumentation structure to preservice earth science teachers and analyzed argumentation levels displayed in the lesson plans written by preservice teachers in the process. As a result of the study, the preservice teachers designed a logically structured lesson by reflecting more argumentation components in the final lesson plan than the first one. In addition, in the case of lesson topics in which all argumentation elements were not explicitly presented in textbooks or curriculum, preservice teachers could not clearly reflect some argumentation components in the lesson plan. The conclusions and implications based on the results are as follows: First, it is necessary to use the argumentation structure as a tool to design logical science lessons, considering that argumentation levels of lesson plans written by preservice science teachers were improved by using argumentation structures in instructional design. Next, it is necessary to cultivate the preservice science teacher's ability to reconstruct the curriculum for science lesson design using the argumentation structure since argumentation levels of lesson plans written by preservice science teachers were limited to the argumentation components presented in the textbook and curriculum. Additionally, it is necessary to develop and apply a preservice teacher education program that uses the argumentation structure in the context of actual teaching activities so that preservice science teachers can not only understand argumentation but also improve their class expertise.

• Journal of The Korean Association For Science Education
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• v.25 no.7
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• pp.765-772
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• 2005

The purpose of this study was to analyze the effects of instruction using science history on science achievement and attitude of students. A pretest-posttest control group design was employed. Subjects were comprised of 193(males 114, females 79) first grade middle school students. A control group of 94 students was instructed using traditional teaching methods and an experimental group of 99 students was instructed using the history of science. Two groups were taught 15 lessons during a 9-week period. To analyze the data statistically, an analysis of covariance(ANCOVA) was applied. The experimental group was significantly different from the control group inrespect to science achievement. There was no significant difference in science achievement between the two groups according to gender. Analysis results on the attitude towards science found the experimental group to significantly differ from the control group. There was no significant difference in attitudes towards science between the two groups according to gender.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.38C no.12
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• pp.1159-1169
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• 2013

EQM Model Digital transponder applying the Korean's own designing and manufacturing technology has gone through a series of trials and errors during the development. In particular, lack of thermal designs expedience for the vacuum causes variety of errors in designing, assembling transponder and setting up the test at the first thermal vacuum test (TVAC). Since the first TVAC test could not accomplished its aims successfully, so the second TVAC should be performed as make up test with revised Digital transponder. In this paper, the defects that identified in the first TVAC are analyzed and applied solutions and its results at the second TVAC are presented. Using the lessons from the first and second TVAC, we will be able to make more reliable digital transponders in the next phase of project. In addition it also be useful as a reference when we design another satellite payloads.

• Journal of Korea Game Society
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• v.14 no.1
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• pp.29-38
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• 2014

This paper proposed a tool how to make the educational game for users who don't have professional knowledge about game production technique and It was sought how they can make directly the educational game customized form what they want. It joined with forgotten Korean folk tales. And It evolved into a new game-making tool that is based on Korean folk tales. Users will design, play and share their games themselves with this tool. It was also produced to involve the children more easily and fun in the education while providing and sharing the fairy tales which teachers directly designed by this tool. This tool will give a chance to look back on forgotten Korean folk tales and will play role as a educational game for young students. Through this game, young students will receive good Korean traditional cultures and will gain wisdom, humor and lessons in a game. And adults will feel homesick.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.46 no.4
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• pp.315-323
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• 2018

CanSat has being attracted considerable attentions for the use as training purposes owing to its advantage that can implement overall system functions of typical commercial satellites within a small package like a beverage can. So-called P.P.T CanSat (Power Plant Trio Can Satellite), proposed in this study, is the name of a CanSat project which have participated in 2015 domestic CanSat competition. Its main objective is to self-power on a LED and a MEMS sensor module by using electrical energy harvested from solar, wind and piezo energy harvesting systems. This study describes the system design results, payload level function tests, flight test results and lessons learned from the flight tests.

• Journal of the Korean Society of Clothing and Textiles
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• v.42 no.4
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• pp.599-611
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• 2018

This study develops a training program for vocational high school students. This study implemented the ADDIE teaching-learning model and was conducted in the sequence of analyses, design, development, implementation and evaluation. In the analysis phase, the existing studies related to vocational competency training were analyzed along with an analysis of the current education programs and suitability assessment. Based on the analysis, the education program was designed and contents were determined. The program consisted of 5 chapters and 17 unit hours of instruction. Reigeluth's (1987) theory was used as the framework for organizing educational materials in the development phase. The programs were implemented on students and evaluated by students as well as experts. Students evaluated the program in terms of the degree of motivation for learning, comprehension of learning content, perceptions of lessons in classes as well as the advantages and disadvantages of the program. Experts evaluated the program in terms of program validity. The results indicate the developed program was useful for training students vocational competencies as shop managers. This study contributes to the field of fashion education, by presenting an example of systematic development of an educational program in connection with industry.

• Journal of The Korean Association of Information Education
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• v.24 no.4
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• pp.401-412
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• 2020

Team-based programming methods are widely applied to solve various difficulties that pre-service teachers experience in the programming lessons. To prepare effective collaboration strategies necessary for them, it is necessary to analyze various collaborative factors that affect learners' programming competencies. Therefore, in this article, a questionnaire survey was conducted by dividing learners' collaboration factors into individual and team competencies, and the relationship between learners' programming competencies was analyzed. As a result of the verification, the program design competency showed significant results in all elements of the learner's personal competency, team techniques such as data sharing skills necessary for collaboration, and team collaboration. It was analyzed that an individual's understanding of learning and team collaboration influenced the program implementation competency. In addition, the group with relatively high team technique showed significant differences in programming competence, interest, and satisfaction. Accordingly, by linking meaningful factors related to individual and team competencies according to the programming process, a collaborative strategy practically necessary for pre-service teachers was suggested.

• Explosives and Blasting
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• v.28 no.2
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• pp.37-49
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• 2010

Ground vibration caused by blasting in the urban area close to structures can give some indirect damage to human body and may lead to structural damage to buildings. At the stage of design or when complaints were filed by residents, the test blasting in borehole, which is most practical for expressing simple vibration wave form quantitatively, is usually chosen for assessing the degree of damage to structures. In this paper, some lessons gained from the application of electronic detonator triggering system in borehole test blasting are presented. The difference in delay time of detonator when borehole is blasted by electronic detonator and electric detonator are discussed. The peak particle velocities measured at the structure embedded in the similar rock layer to main line of tunnel at test site and measured at the road surface just above the tunnel having different overburden layers were analysed to draw their relationship. By comparing the results with those appearing in some published literatures, the usefulness of the borehole test blasting and the importance of delay time of detonator are addressed.

• 한국지구과학회:학술대회논문집
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• 2005.09a
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• pp.304-314
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• 2005

The present study aims to develop animation module-based teaching-learning materials for a unit of middle school 3rd grade science, which contains the movement of the solar system, through the utilization of various forms of multimedia elements. The developed materials consist of 12 in total flash animation modules covering ‘movement of the Earth,’ ‘movement of the Moon,’ movement of the Planets,‘ etc. To analyze the student responses to the science classes to which the developed animation modules were to be applied, the researcher selected for subjects two third-grade classes that were made up of 60 students and later divided for an experimental group and a control group in a middle school located in Jeonju. The experimental group was treated with the animation module-based lessons developed in the present study while the control group was taught in the traditional teacher-centered ways. Tests for the science-related attitudes of the two groups were administered and the results showed that the mean score of the experimental group was significantly higher than the mean score of the control group (p<0.05) in the categories of ‘interest’ and ‘scientific attitude’. It was thus believed that the animation module-based teaching has a positive effect on the categories of ‘interest’ and ‘scientific attitude’. To assess the qualitative dimension of the developed materials, the researcher subjected them to the utilization of the 30 local science teachers and afterwards a survey was done with the 8 crucial items taken from the WBI evaluation test developed by Multimedia Education Support Center in 1998. The result was broadly positive in terms of lesson design and from a technological point of view.