• 한국수학사학회지
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• 제33권1호
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• pp.1-19
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• 2020

Under 2009 Revised Mathematics Curriculum and 2015 Revised Mathematics Curriculum, mathematics teachers can help students inductively express real life problems related to sequences but have difficulties in dealing with problems asking the general terms of the sequences defined inductively due to 'Guidelines for Teaching and Learning'. Because most of textbooks mainly deal with the simple calculation for the sums of sequences, students tend to follow them rather than developing their inductive and deductive reasoning through finding patterns in the sequences. In this study, we reconstruct 8 problems to find the sums of sequences in MukSaJipSanBup which is known as one of the oldest mathematics book of Chosun Dynasty, using the terminology and symbols of the current curriculum. Such kind of problems can be given in textbooks and used for teaching and learning. Using problems in mathematical books of Chosun Dynasty with suitable modifications for teaching and learning is a good method which not only help students feel the usefulness of mathematics but also learn the cultural value of our traditional mathematics and have the pride for it.

• 대한지구과학교육학회지
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• 제5권1호
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• pp.68-74
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• 2012

The focus of this study was on the comparative analysis in the area of illustrations between the primary school from third grade to the sixth grade between Korean and American science textbooks in order to offer some suggestions for consideration of the Korean science textbooks, which will be revised in 2009. The results are as follows: The number of illustrations per page in Korean science textbooks are more than that of American science textbooks. As the type of illustrations, the ratio of photos is the highest and as the role of illustrations, data provision has the highest percentage in both countries. The motivation role in Korean science textbooks seem to be higher than American science textbook, whereas study summary role is more prominent in American textbooks than in Korean textbooks.

• 컴퓨터교육학회논문지
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• 제12권5호
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• pp.63-74
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• 2009

본 논문에서는 2007년 개정 중학교 정보과목 교육과정의 "정보 사회와 정보 기술"영역의 교육과정 내용을 분석하여 해당 영역의 성취기준을 상세화하고, 성취 기준에 근거한 평가기준을 설정하여 제시하였다. 제시한 성취기준과 평가기준은 새 교육과정을 근거로 개발하였기 때문에 2010년도에 적용되는 새 교육과정에 의한 중학교 정보 교과의 교수-학습 활동에서 교사들의 학습 목표의 설정, 학습 범위와 내용 수준 설정, 교수-학습 방법 개선, 평가 방법 개선 등에 도움이 될 것으로 기대한다.

• 한국초등과학교육학회지:초등과학교육
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• 제33권3호
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• pp.453-463
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• 2014

Environmental education contents in science textbooks of South Korea and the United States were compared and analyzed in order to find how to develop environmental education in elementary science education. McGraw-Hill science textbooks for third to sixth grade and science textbooks of Korea based on the 2009 Revised National Curriculum and the 2007 Revised National Curriculum were analyzed and compared. The categories were educational goals, kinds of contents, distributions of contents and tense. The result showed that the environmental education goals in science textbook of Korea and United States were biased to knowledge area. The educational contents of the United States was higher 2.5 times then Korea and distributed in all areas. In quantitative distributions in Korea were biased some special areas. Tense of educational contents were almost present. Attitudes and recognition of students varies gradually over a long period of time, the contents of environmental education will be useful "evenly distributed" for all areas and school year.

• 전기학회논문지
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• 제58권9호
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• pp.1778-1783
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• 2009

Ground impedance for the large grounding system is measured according to the IEEE Standard 81.2 which is based on the revised fall-of-potential method of installing auxiliary electrode at a right angle. When the auxiliary electrodes are located at an angle of $90^{\circ}$, the ground impedance inevitably includes the error due to earth mutual resistance. In this paper, in order to accurately measure the ground impedance of vertically-driven ground electrodes, error rates due to earth mutual resistance are evaluated by ground resistance and ground impedance measuring devices and compared with calculated values. As a result, the measured results are in good agreement with the computed results considering soil layer with different resistivity. The error rates due to earth mutual resistance decrease with increasing the length of ground electrode in the case that the ratio of the distance between the ground rod to be measured and the auxiliary electrodes to the length of ground electrode(D/L) is same. The ground impedance should be measured at the minimum distance between the auxiliary electrodes that will have an estimated measurement accuracy due to earth mutual resistance.

• 한국초등과학교육학회지:초등과학교육
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• 제35권3호
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• pp.377-387
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• 2016

Whether textbooks faithfully reflect the curriculum contents is an important educational issue. The previous studies on the textbooks did not analyze the relationship described in the textbooks or the structure. In this regard, this study aims to analyze how the concept of life science area in the elementary school science textbooks developed on the basis of the 2009 revised curriculum is linked. In addition, it seeks to analyze how the concept presented in the learning content achievement standards of the curriculum is connected to other concepts. Towards this end, the conceptual linkage of eight units in the life science domain of elementary school science textbooks based on the 2009 revised curriculum was analyzed. The contents of the life science domain in the science textbooks were analyzed through a semantic network analysis, and the semantic network on the concept linked to the one described in curriculum's learning objectives was also analyzed. The results are as follows: 1) It will be difficult for students to understand the concept due to the complexity of the semantic network resulting from a number of concepts. 2) The curriculum's learning objectives presented in the curriculum are not faithfully reflected in the textbooks. 3) The textbooks are described on the basis of specific curriculum's learning objectives. Based on the findings of this study, the number of concepts described in the elementary school science textbooks needs to be significantly reduced so that the concepts can be meaningfully linked to each other.

• 한국지구과학회지
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• 제35권7호
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• pp.585-597
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• 2014

본 연구는 비쌍극자 모형이 제시된 읽기 자료만으로 교사들의 편각에 대한 이해도가 얼마나 높아질 수 있는지를 알아보았다. 그와 함께 2009 개정 교육과정 하의 "지구과학 II" 교과서에서 기술된 내용이 과거의 교과서 내용과 얼마나 차이가 있는지 알아보았다. 편각에 대한 이해도 조사는 1급 정교사 연수를 받고 있는 경기도 지역 교사 30명, 서울지역 교사 33명을 대상으로 이루어졌다. 연구 결과 첫째 교사들도 편각에 관한 여러 오개념을 가지고 있었으며 대표적으로 나침반 바늘이 자북극을 가리킨다고 하는 오개념이 있었다. 이러한 오개념은 읽기 자료만으로도 잘 수정되지 않았다. 둘째로 비쌍극자 모형이 포함된 읽기 자료를 통해 편각에 대한 이해가 높아졌으며, 셋째로 개발된 자료는 학생들에 비해 교사들에게 더욱 효과적임을 통계적인 방식으로 확인하였으며 마지막으로 현재 사용되고 있는 교과서에서 제시되고 있는 비쌍극자 모형이 포함된 설명도 보완 수정이 필요함을 알았다.

• 대한수학교육학회지:학교수학
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• 제19권1호
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• pp.43-58
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• 2017

교사의 교육과정에 대한 이해 정도에 따라 교수 학습 방법에 상당한 차이가 존재할 수 있으며 평가 문항은 이러한 차이를 반영하는 대표적 산물 중 하나이다. 그러므로 지필평가 문항 분석을 통하여 교사의 교육과정에 대한 이해도가 지필평가에 어떻게 반영되고 있는가에 대한 실태 연구가 필요하다. 본 연구에서는 2009 개정 수학과 교육과정에 기반하여 중간고사와 기말고사로 출제된 '미적분I' 219개 검사지에 수록된 문항 중 '수열의 극한'을 내용 영역으로 하는 문항을 중심으로 변화된 교육과정이 학교 현장의 지필평가에서 어떻게 반영되고 있는지를 분석하였다. 분석 결과를 토대로 지필평가에서 나타난 문제점을 확인하고, 교육과정 개정 이후 새로운 교육과정의 안정적 안착을 위하여 반드시 동반되어야 할 교육정책 관련 시사점을 도출하고자 하였다.

• 대한지구과학교육학회지
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• 제7권3호
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• pp.327-337
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• 2014

In this research, a subject substitute STEAM program was developed in context of a trend of STEAM education and a new science contents in a 2009 revised curriculum, which can replace the 2009 revised curriculum contents of 'Sound' unit in the third and the fourth grade. The developed program was taught to the 4th graders in a field. After applying the program, how students acknowledge the subject substitute STEAM program was analyzed through questionnaire. The research results were as follows. First, the subject substitute STEAM program of 3 sub programs was developed with centered around 'sound' unit for 4th graders. Second, students made a positive estimation of the STEAM program because of various activities and learning subject related to daily life. Third, they considered difficult term, necessary craft skills in creative design, understanding scientific principle and a lot of necessary time as difficulties of the STEAM program. And they also recognized that making stuff activity and learning aid material like activity sheet, picture and video helped to understand a lesson. Lastly, students had a positive thinking or negative thinking about STEAM program before they learn. But after learning the STEAM program, all of them showed their positive attitude to the STEAM program.

• 한국콘텐츠학회논문지
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• 제9권2호
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• pp.400-409
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• 2009

본 연구는 체육교과 진화에 관해 생태학적으로 조망해 보고 논의 하는데 그 목적이 있다. 이를 위해 2007년 개정 체육과 교육과정을 통해서 의미를 모색해보았다. 교육과정을 토대로 체육교과의 진화를 조망한 이유는 개정 체육과 교육과정에는 체육교육의 목표, 가치, 체육교육의 철학적 배경을 담고 있기 때문이다. 본 연구를 통해 타나난 결과는 다음과 같다. 첫째, 현장교사에 대한 역할 강화를 위한 적극적 지원이 강조되어야 한다. 둘째, 체육교과에서 전술이 강조되어야 한다. 셋째, 운동을 단순히 기능 혹은 운동신경수준이 아닌 가드너가 제시한 지능으로 해석하는 것이 필요하다. 넷째, 체육교과의 정상화를 위해서는 현재 고등학교 2, 3학년에서 체육교과 필수 지정에 대한 노력이 필요하다.