• 한국수학교육학회지시리즈A:수학교육
• /
• 제45권2호
• /
• pp.217-230
• /
• 2006

The purpose of this study is to inquire the building process of Pedagogical Content Knowledge of prospective mathematics teachers about the function concepts. For this purpose, We performed the following steps; First, we performed the survey relaying to the prospective mathematics teachers' teaching experiences, capabilities of their error evaluation of the students, and viewpoints about the function concepts. Second, we performed the survey on the subject-matter knowledge about the function concepts and the key items of designing teaching plans about the function concepts. And then, we interviewed the participants to check the results of the surveys and to supplement the necessary contents. The collected data was relatively correlative and analyzed in the process. As a result, we found the followings; First, subject-matter knowledge of prospective mathematics teachers about the function concepts is different depending on the grades. Second, prospective mathematics teachers are building more extended function concepts through the major subjects. Third, the major subjects are important to build the Pedagogical Content Knowledge of function concepts. Fourth, teaching experience plays an important role in transforming subject-matter knowledge of function concepts to Pedagogical Content Knowledge of it. Fifth, building the Pedagogical Content Knowledge means transferring the teacher's viewpoint from himself/herself to the learner.

• 한국과학교육학회지
• /
• 제30권7호
• /
• pp.908-919
• /
• 2010

The objectives of this study were to investigate what kind of background concepts is necessary to help that high school students easily understand meiosis and to find out how these background concepts affect students' understanding of meiosis. To achieve these objectives, first this study surveyed meiosis background concepts that high school teachers think. Based on 8 background concepts - nuclear phases, chromosome, mitosis, reproduction, gamete, gene, mother/daughter cell - of previous survey, the questionnaire was made for the 10th(724) and 11th(862) grade students and then was analyzed for the effect of meiosis background concepts on the high school students' understanding of meiosis. Results of the analysis revealed that the influential background concepts are as follow; cell cycle, chromosome in the advanced level, mother/daughter cell, mitosis, chromosome, nuclear phases in the intermediate level, mother/daughter cell, nuclear phases, gene in the low level. And the achievement according to item types was differed not by meiosis achievement, but by each background concepts.

• 한국지구과학회지
• /
• 제44권1호
• /
• pp.47-61
• /
• 2023

본 연구는 2015 개정 교육과정에 처음 도입된 핵심 개념이 추상적인 담론으로 그치지 않고 학교 현장에서 구체적인 교수학습 방안으로 구현되도록 하기 위함이다. 이에 플랫폼, 숙의, 설계의 순환적 과정에 따라 백워드 설계 모형을 활용하여 핵심 개념 이해를 위한 교수학습 자료 개발 연구에 참여한 8명의 중등 과학 교사들을 대상으로 핵심 개념에 대한 인식 및 관점을 살펴보았다. 연구 결과, 핵심 개념에 대해 궁극적 원리에 해당하는 빅 아이디어, 일상생활을 살아가는 데 필요한 최소한의 과학 개념, 기본적이고 주요한 핵심적 과학 개념 등 핵심 개념의 의미에 대해 동일 교과인 과학과 안에서도 공유되지 않은 인식의 차이가 나타났다. 이는 교수학습 지향점에도 영향을 주어, 핵심 개념을 전이와 확장 가능한 빅 아이디어로서 이해하고 있는 경우는 개념 간의 관계에 주목하며 분명한 방향성을 갖고 프로젝트 학습을 설계하는 경향이 나타났다. 한편, 핵심 개념을 삶의 맥락에서 떠올릴 수 있는 과학 소양 수준의 최소한의 과학 개념으로 인식하는 경우, 학생들의 삶에 의미 있는 학습 경험을 제공하는 것을 지향하며 일상에 적용 가능한 사례 중심으로 검색 및 조사 활동을 강조하는 경향이 나타났다. 또한 핵심 개념을 기본 개념이나 주요 개념 등 핵심적인 과학내용 요소로 인식하는 경우, 오개념 교정을 통한 개념 변화를 강조하며 정확한 과학 지식을 학습하고 지필 평가 및 수행 평가를 통한 문제 해결 문항을 개발하는 것을 중요하게 인식하였다. 2015 개정 교육과정이 마무리 되고 2022 개정교육과정이 확정·고시될 예정인 현 상황에서, 핵심 개념을 핵심 아이디어로 명명하여 빅 아이디어의 취지를 재차 강조하는 2022 개정 교육과정이 학교 현장에 안정적으로 정착될 수 있도록 실효성 있는 정책적 지원이 뒷받침 되어야 할것이다.

• 한국포장학회지
• /
• 제12권1호
• /
• pp.13-20
• /
• 2006

Active packaging is one of the innovative concepts which actively change the condition of the packaged products. Active packaging technique controls the environment inside the packaging in order to extend the shelf life of the product and improve its quality or safety. Active packaging are based on major contents of scavenging concepts, releasing concepts, and other active packaging concepts such as removal or indicating systems. In recent years, experimental developments using active packaging concepts between polymeric packaging materials and the contact surfaces of food products are widely studied in order to make extensive commercial applications. Well-developed packaging markets in USA, Japan, and Europe are already being successfully applied in active packaging concepts. This paper reviews the concepts of active packaging and current information of active packaging technologies. The status of domestic technologies in active packaging were analyzed.

• 한국과학교육학회지
• /
• 제5권1호
• /
• pp.11-17
• /
• 1985

This study had its objective to indentify the basic biological concepts as recommended by scholars in biology and by high school biology teachers for inclussion in the high school biology curriculum and to determine the importance levels of the concepts. The scholars for this study were selected to insure that their majors are evenly distributed across the biological areas. The final concept list contains 137 biological concepts along with their importance level judged by the scholars and high school biology teachers. The biological concepts are categorized into 12 biological areas. This study suggests that the concepts in the final list can not refect the conceptual hierarchy or inclusiveness, goals or objectives of biology education in the high school, and difficulty levels of the concepts. This study also claims that the concept list like the one produced by this study should be successively' checked and revised due to the continuous development of biological knowledge system and the constant change in the meanings of the knowledge system.

• 논리연구
• /
• 제7권1호
• /
• pp.1-22
• /
• 2004

The Kantian idea that some judgments are synthetic even in the area of a priori judgments cannot be accepted in its original version, but a modification of the notions 'analytic' and 'synthetic' discovers a rational core of that idea. The new definition of 'analytic' concerns concepts and makes it possible to distinguish between analytic concepts, which are effective ways of computing recursive functions, and synthetic concepts, which either define non-recursive functions, or define recursive functions in an ineffective way. To justify this claim we have to construe concepts as abstract procedures not reducible to set-theoretical entities.

• 대한수학교육학회지:수학교육학연구
• /
• 제9권1호
• /
• pp.133-150
• /
• 1999

In this study, we tried to make histo-genetic analyses necessary to identify epistemological obstacles on the function concepts. Historical development on the function concept was analysed. From these analyses, we obtain epistemological obstacles as follows: the perception of changes in the surrounding world, mathematical philosophy, number concepts, variable concepts, relationships between independent variables and dependent variables, concepts of definitions.

• 아동학회지
• /
• 제27권3호
• /
• pp.1-27
• /
• 2006

This study investigated kindergarten teachers' experience and perceptions of education about death concepts in kindergarten children. Twenty kindergarten teachers were interviewed for this qualitative study. Results were that most kindergarten teachers perceived the necessity of the practice of the education about death concepts for kindergarten children; most kindergarten teachers recognized that all kindergarten teachers need to have professional knowledge for the successful practice of education about death concepts for kindergarten children; most kindergarten teachers recognized that education about death concepts needs to be included in the early childhood education curriculum.

• International Journal of Fuzzy Logic and Intelligent Systems
• /
• 제10권3호
• /
• pp.247-252
• /
• 2010

In this paper, we investigate the relations among formal concepts, attribute oriented concept and object oriented concepts on a complete residuated lattice.

• 한국산학기술학회논문지
• /
• 제16권1호
• /
• pp.827-836
• /
• 2015

본 연구는 다양하고 복잡한 이론체계지만, 일관된 건축개념의 전개방식과 작품의 논리구성에서 한국의 건축계가 달성해야할 '한국성의 세계화'에 대해 도움이 될 만한 일본의 세계적인 건축가 키쇼 쿠로가와의 건축개념에 대한 논문이다. 그의 건축개념은 메타볼리즘, 메타몰포스시스, 심바이오시스 등으로 나눌 수 있다. 그리고 이런 주요 개념에 변화하는 과정적 단계의 매체로서 작용하는 이론인 중간영역, 애매성, 다의성 등이 있는데, 메타몰포시스의 매체로서 사용되며 심바이오시스 를 구현시킨다. 메타볼리즘은 메타몰포시스와 심바이오시스의 개념을 내재하고 있다. 심바이오시스는 메타볼리즘과 메타몰 포스시의 개념으로 구성되며, 이 모든 개념들의 궁극적인 목적이기도 하다. 메타몰포시스는 메타볼리즘에서 심바이오시스로 변화하는 과정적 단계에서 매체의 개념으로서 작용한다.