• Journal of the Korean School Mathematics Society
• /
• v.14 no.2
• /
• pp.123-142
• /
• 2011

Recently, a number of researches acknowledge the importance of 'reflection' and 'reflective teacher education,' and they highlight the implication of 'reflection' on the teacher's profession or the teacher education. The reflective thought is interpreted as a subject that should be taught or a sort of strategy that a teacher should learn, while the aspect is excluded that reflection is the interaction between the innate knowledge and the practice. As a result, the reflective teacher education programs that increase the level of reflection are developed and practiced, and the reflection is accepted as a tool for increasing teacher professionalism. Reflective teaching is en essential and basic element for the development of teacher knowledge. In particular, such teacher knowledge might be being gradually expanded by a teacher's self-assessment on reflection on his own instruction. For this reason, this study develops an assessment framework on instruction which is comprized of teacher knowledge and instructional process. To accomplish this, in this study, teacher knowledge is considered as a whole practice knowledge combined by subject matter knowledge, understanding of learners, teaching and learning methods and assessment, and instructional environment. Also, success on instruction in mathematics class might depend on the acquisition of teacher knowledge, instructional planning, instructional execution, and furthermore reflection on instruction. Especially, this study emphasizes that 'reflection on instruction', the most important step of instruction be reflected and examined by the teacher himself.

• Journal of the Korean Society for Library and Information Science
• /
• v.43 no.4
• /
• pp.281-306
• /
• 2009

This exploratory study reports how teacher-librarians perceive their roles as practitioners in school library media programs. Conducted within the framework of qualitative research, the study employed a focus group interview (Morgan 1997) with five teacher-librarians at elementary school level in Seoul. The findings suggest: (1) the roles of teacher-librarians are influenced a great deal by many factors in educational systems; (2) there is no consensus on how to define and perform their role as teachers; (3) there seems to be increasing emphasis on their program administrator's role; (4) there is no consensus on prioritizing the five roles suggested by the AASL (2009), but all the participants agreed that the leader's role is most crucial for the success of pursuing the rest of the roles, and (5) there seems to be no clear boundaries as teacher-librarians perform their roles. Putting all the results together, the researcher was able to conclude that teacher-librarians are frequently asked to be flexible and negotiable and have great burden in the affective, cognitive, and physical realm for the roles imposed and expected of them.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2013.07a
• /
• pp.209-210
• /
• 2013

본 연구의 목적은 공학에 대한 흥미, 태도, 성취가 낮은 여학생에게 공학 경험을 제공함으로써 공학 분야의 여성 인재를 양성할 수 있는 계기를 마련하기 위한 공학 중심 STEAM 프로그램의 틀을 설계하는 데 있다. 이를 위하여 여학생의 특성을 분석하고 여학생 친화적인 환경을 구축하였으며 여학생 친화적 환경에 부합하는 e-textile이라는 도구를 활용하여 STEAM 교육 프로그램을 설계하였다. 교육 프로그램은 학습자가 직접 참여할 수 있도록 Learning by Doing, Learning by Design의 전략을 사용하도록 하였으며 교육 프로그램 전 과정을 학습자 스스로 창의적인 사고를 바탕으로 문제를 해결해나가도록 하고 교사는 조력자, 안내자 역할을 할 수 있도록 하였다.

• Proceedings of the Technology Innovation Conference
• /
• 2004.06a
• /
• pp.68-87
• /
• 2004

본 연구는 국가기술혁신시스템의 틀 안에서 기술이전$\cdot$확산의 필요성과 역할을 규명하고, 이를 토대로 21세기 국내 전력산업이 경쟁력을 갖춘 산업으로 발돋움하기 위한 기술이전$\cdot$확산시스템 구축방안을 제시하고 있다. 나아가 전력기술 확산체제 구축이 국가기술혁신시스템과 독립적으로 인식되는 것을 제고하고, 연구 과정 중에 전력기술 확산체제가 국가기술혁신시스템 내에서 자연스럽게 이해될 수 있도록 이론적 틀을 검토하였다. 이를 위하여 기술이전$\cdot$확산 체제의 개념과 정책과의 관계를 규명하고, 전력기술이전$\cdot$확산체제 구축의 필요성과 추진방안을 모색하고자 하였다. 이후 전력기술이전$\cdot$확산 시스템의 구축에 있어 예상되는 설계사항을 분석하고, 이에 부합하는 전력기술이전$\cdot$확산시스템의 구축 방안을 제시하고자 하였다. 마지막으로 전력부문의 정책 및 전략의 추진체계 수립을 통하여, 국가기술혁신시스템 내에서 전력기술이 확산되도록 하기 위한 활성화 방안을 제시하였다.

• Cartoon and Animation Studies
• /
• s.33
• /
• pp.79-97
• /
• 2013

Animation is the aggregate of signs based on narrative. Algirdas Julien Greimas made structuralist frame and analyzed the meaning with it. Greimas's semiotics among the animated characters appearing in the conflict structure is suitable for the analysis and figure out the structure and meaning of the conflict which is hidden. Because Greimas Semiotic Square is suitable for apprehending meaning structure, it help for us to identify between characters and meaning that from character. Actantial Model help to apprehend power relations in structure between characters by axis of desire. This study search Greimas's semiotics and based on this analyse animation, . Also this study analyse conflicts between protagonist and antagonist with Greimas Semiotic Square after analysing narrative of like Vladimir Proof's folktale analysis. Unlike the protagonist's internal conflict, the antagonist's internal conflict moves the audience's emotions. Finally, this study analyse animation in the synchronic structure with the Actantial Model.

• Journal of Science Education
• /
• v.44 no.2
• /
• pp.145-156
• /
• 2020

The purpose of this study is to analyze the science history materials presented in middle school 'Science' textbook according to the 2015 revised curriculum. The subjects of this study were 14 middle school 'Science' textbooks. The analysis used the three-dimensional framework. The results of analysis show that the number of science history materials presented in textbooks tends to increase as the grade goes up. It was also found that science history materials were presented in a specific unit for each grade. The three-dimensional analysis of science history materials showed that conceptual-fundamental-discovery/device types were most commonly presented in all grades. At the instruction context level, the conceptual context was the most common, and the basic role was the main at the role level. The discovery/device type was the most common type of presentation. The results of the study show that the science history materials presented in science textbooks were concentrated in some areas. Also, the instruction context and role were concentrated in some factors in terms. This suggests that various science history materials need to be developed in the future. It is also necessary to explore concrete methods to ensure that science history materials presented in textbooks can be used in various roles in different contexts.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
• /
• v.9 no.2
• /
• pp.265-277
• /
• 1998

In this paper, to investigate the possibility of fading reduction effect and high transmission rate in indoor multipath propagation environment, we measured and analyzed broadband signal conducting by frequency sweeping method in LOS(Line-of-Sight) environment. In measuring, we used vertically polarized, horizonatally polarized and circularly polarized and circularly polarized antenna to compare the fading reduction effect and the characteristic of bandwidth amplitude fluctuation between each broadband signals. As a result, it can be seen that the circularly polarized antenna can reduce the amplitude deviation of the broadband signal because it can remove the odd-times reflected wave in LOS environment. And also, It was found that the best effective diversity reception method is to use polarization branches, which install a circularly polarized antenna at the transmitting end and compose the vertical and horizontal antenna at the receiving end.

• Journal of the Korean earth science society
• /
• v.26 no.8
• /
• pp.751-758
• /
• 2005

The purpose of this study was to develop an inquiry analysis framework based on the features of earth science inquiry methodology and to analyze inquiry activities in the 8th grade 'Earth History and Diastrophism' unit by using this framework. The framework classified earth science methods as logical inference, hermeneutic, and historical methods, each of which was subdivided in consideration of its subordinate methods and characteristics. The analysis revealed that the logical inference method reflected in the unit as the 'abductive method' (70%) was used more frequently than the 'inductive' (23%) and 'deductive' (22%) methods. The hermeneutic method was found in terms of the 'forestructures of understanding' (92%), 'circular reasoning' (9%). and 'historical nature of human understanding' (17%). The historical method also used as the 'constructing proper taxonomy' (53%), 'adhering to the modem principle of uniformitarianism' (47%), and 'relic interpretation' (41%) were identified with ratios more fester than those for the 'place substituting for time in stage theorizing' (3%) and 'evaluating independent lines of inquiry for convergence' (3%).

• Education of Primary School Mathematics
• /
• v.25 no.1
• /
• pp.81-100
• /
• 2022

The purpose of this study is to develop a framework for analyzing the solution spaces of open-ended task and to explore their usefulness and applicability based on the analysis of solution spaces constructed by students. Based on literature reviews and previous studies, researchers developed a framework for analyzing solution spaces (OMR-framework) organized into subspaces of outcome spaces, method spaces, representation spaces which could be used in structurally analyzing students' solutions of open-ended tasks. In our research, we developed open-ended tasks which had various outcomes and methods that could be solved by using the concepts of factors and multiples and assigned the tasks to 181 elementary school fifth and sixth graders. As a result of analyzing the student's solution spaces by applying the OMR-framework, it was possible to systematically analyze the characteristics of students' understanding of the concept of factors and multiples and their approach to reversible and constructive thinking. In addition to formal mathematical representations, various informal representations constructed by students were also analyzed. It was revealed that each space(outcome, method, and representation) had a unique set of characteristics, but were closely interconnected to each other in the process. In conclusion, it can be said that method of analyzing solution spaces of open-ended tasks of this study are useful for systemizing and analyzing the solution spaces and are applicable to the analysis of the solutions of open-ended tasks.

• Journal of the Korean Chemical Society
• /
• v.59 no.6
• /
• pp.520-532
• /
• 2015

The purposes of this study were to examine what kinds of educational activities were carried out during the practice teaching based on CoRe and to identify the role of CoRe and its influence on the development of expertise of student teachers. This study was performed as qualitative case study. The subjects of this study were one practice supervisor teacher and two student teachers. Data were collected through recording CoRe discussion process, student teachers' instructional scene, and semi-constructed interview, and analyzed by an inductive method. Student teachers noticed their own misconceptions, and clarified the concepts based on CoRe during the discussion with supervisor teacher. They also supplemented their lack of knowledge and made up new strategies through the process of sharing their ideas. During the discussion, the supervisor teacher conveyed his teaching experience based on his own orientations toward science teaching. In this course, CoRe plays roles as follows. Firstly, CoRe played a role as guiding supervisor teacher's coaching process. Secondly, CoRe helped for the supervisor teacher to recognize their own PCK. Thirdly, CoRe served as a tool of helping their communication. In turn CoRe proved to be a useful frame for teaching student teachers during practice teaching. Student teachers were provided with a useful framework for preparing lessons by developing CoRe for the topic they teach. Developing CoRe with supervisor teacher at the planning stage of lessons enhenced student-teachers' subject matter knowledge and their PCK including knowledge of science curricula and knowledge of student's understanding of science. Also student teachers understood the components of PCK and experienced the positive understanding toward students, teaching activities, and themselves as a science teacher.