• 대한수학교육학회지:수학교육학연구
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• 제18권3호
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• pp.407-434
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• 2008

이 연구는 우리나라 중학교 1학년(7-나 단계) 교과서 통계단원에서의 교과서 서술 방식에 대해 남주현(2007)의 세 통계적 핵심개념 가운데 분포개념의 관점에서 분석해 본 것이다. 따라서 이 단원의 학습목표의 핵심의 분포개념의 습득과 표현, 비교법 등이라고 전제한 것이다. 연구결과 다음을 알 수 있었다. 첫째, 학생들은 분포가 무엇이고, 어떤 것이 분포가 아닌지 구분할 수 있어야 한다. 둘째, 여러 형태의 분포의 표현법들은 각각 고유의 학습 이유가 제시될 필요가 있다. 그래야 학생들의 동기를 유발하고, 학생들은 적절한 상황에서 적절한 표현법을 사용할 줄 알 수 있을 것이다. 셋째, 장래 배울 확률밀도함수의 자료관련 이해를 증진시키려면 7학년의 히스토그램 수업에서 밀도히스토그램을 학습해 두는 것이 도움이 될 것이다. 적어도 상대도수를 넓이로 표현하는 경험은 필요해 보인다. 넷째, 두 도수분포의 비교, 특히 도수분포 다각형을 통한 비교의 필요성 여부가 재고되어야 한다. 다섯째, 통계문맹에 대한 7학년 단계부터의 완만한 준비와 점진적 학습이 필요한지 재고될 필요가 있다.

• 한국학교보건학회지
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• 제22권1호
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• pp.67-72
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• 2009

Purpose: The purpose of this study was to examine the relationship between the toothpaste squeezing methods and the amount of toothpaste that the daycare teachers apply for the children in order to prevent the overuse of fluoride-containing toothpaste among children, and to understand their educational experiences on oral health and their awareness of the right amount of toothpaste used. Methods: The subjects in this study were 87 teachers at 16 different daycare centers in the city of Sokcho, Gangwon Province. They were interviewed to find out whether they had ever received oral health education and whether they were cognizant of the right amount of toothpaste to be used. And a transverse technique and a pea-sized squeezing technique were selected to look for connections between their toothpaste squeezing methods and the amount of toothpaste used by them. Results: 89.7 percent of the daycare teachers investigated taught to preschoolers how to do toothbrushing after they took meals and had a snack. 36.8 percent of the daycare teachers had children squeeze toothpaste on their own. The amount of toothpaste applied by the daycare teachers at a time was 0.58ｇ. When they utilized two other squeezing methods, transverse technique and pea-sized squeezing technique, they used each 0.38 g (p<0.005) and 0.38 g (p=0.405) of toothpaste. Conclusion: To prevent children from being overly exposed to fluoride-containing toothpaste, daycare teachers should learn about the right amount of toothpaste to be used when oral health education is provided, and the transverse technique should be recommended to ensure the use of the proper amount of toothpaste.

• 한국콘텐츠학회논문지
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• 제21권3호
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• pp.761-770
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• 2021

본 연구는 초등아동을 위해 학교 정규교육시간 이외의 시간에 마을에서 제공하는 돌봄서비스가 아동이 행복한 일상생활을 보장하는 돌봄, 즉 아동권리가 실현되는 정책으로 실현되고 있는지 현황과 개선점을 살펴보고자 한다. 방과후 돌봄은 생존권과 보호권은 물론 창의적인 교육활동과 주체적인 시민성장을 지원하는 통합적 방법으로서 중요하며, 코로나 상황을 맞아 공공의 역할이 더욱 강조되고 있다. 따라서 온종일돌봄 정책 중학교밖 돌봄의 주축이 되는 다함께돌봄 정책을 아동권리 관점에서 분석하였다. 분석결과, 보호자의 역할을 대신하는 보호권에 초점이 맞추어져 아동의 4대 권리를 충분히 보장하는 포괄적 정책으로서 한계점이 있었다. 안전한 돌봄공간 마련도 중요하지만 마을의 다양한 자원을 돌봄 콘텐츠로 적극 활용하여 놀면서 배우는 아동의 선택권 확대를 위한 정책설계가 부족하다. 이를 위한 공공의 역할은 서비스의 양적확대와 더불어 내용적 공공성인 책임성, 공정성, 민주성, 공익성을 담보하기 위한 보완이 요청된다. 다함께 돌봄 정책은 아직 실행초기인 정책으로, 아동권리 관점을 반영하여 유연한 공적돌봄 체계로 발전할 수 있는 정책 개선방향을 제언하였다.

• Design & Manufacturing
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• 제11권3호
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• pp.41-45
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• 2017

Drones can be manipulated in a variety of ways. One of the most common controller is joystick method. But joystick controller uses both hands and takes a long time to learn. Particularly, in the case of 8-character flight, it is necessary to use both front and rear flight (pitch), left and right flight (Roll), and body rotation (Yaw). Joystick controller has limitations to intuitively control it. In particular, when the main body rotates, the viewpoint of the forward direction is changed between the drones and the user, thereby causing a mental rotation problem in which the user must control the rotating state of the drones. Therefore, we developed a motion matching controller that matches the motion of the drones and the controller. That is, the movement of the drone and the movement of the controller are the same. In this study, we used a gyro sensor and an acceleration sensor to map the controller's forward / backward, left / right and body rotation movements to drone's forward / backward, left / right, and rotational flight motion. The motor output is controlled by the throttle dial at the center of the controller. As the motions coincide with each other, it is expected that the first drone operator will be able to control more intuitively than the joystick manipulator with less learning.

• 보건행정학회지
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• 제26권4호
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• pp.265-270
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• 2016

Public health system for more prevention-oriented health promotion rather than hospital-based curative service, focusing population rather than individual, and comprehensive health management in the local community strongly needs to be constructed to solve major issues on efficiencies and equity problems which Korean healthcare system is facing nowadays. Public health promotes and protects the health of people and the communities where they live, learn, work, and play. Medical care tries to cure those who have diseases, but public health tries not to become ill and not to be injured. Debates on how we build or rebuild public health system, which is contrasted with medical care system, are needed in Korea, focusing how needs for healthy community and right to health are fulfilled. Public health specialists for practising population health at local community level should be systematically recruited, the function of public health centers should be strengthened, and new government organization should be established for place-based health management.

• 한국수학교육학회지시리즈A:수학교육
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• 제42권5호
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• pp.707-723
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• 2003

Teaching the notion of limit of the sequence in high school mathematics needs special attention and accurate teaching methods, for it is one of the most important bases of the advanced mathematics. Therefore it is necessary for high school students to have the right understanding of the notion of limit of the sequence. In this paper, we survey several teaching methods of the notion of limit of the sequence in high school mathematics and introduce a new method using Excell program. Also through questionnaire survey we discuss and analyse students' reaction when they learn the notion of limit of the sequence. And based on that, we suggest a method that would be believed to improve the students' understanding for the notion of limit It should be also notified that questionnaire survey was performed in order to find out which method would be appropriate to teach the notion of limit of the sequence, and that the survey result was fully reflected in the guideline that suggested.

• 한국항공운항학회지
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• 제28권4호
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• pp.154-163
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• 2020

The pilot's aeronautical decision-making during the flying greatly affects flight safety, and the importance of situational awareness has been greatly emphasized as a prerequisite for making the right decision. This is the reason why more research and interests are needed to help students entering the pilot training program develop excellent situational awareness from the initial stage of training. Situational awareness is closely related to long-term memory activities in human information processing, and pedagogy and cognitive psychology have emphasized the encoding techniques as an effective long-term memory method. This study was conducted to confirm whether pilot students' using the encoding techniques to learn flight education materials in the early stage of their training at domestic universities has a positive effect on improving their situational awareness.

• 영어어문교육
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• 제10권3호
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• pp.177-190
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• 2004

The purpose of this paper IS to investigate the aspects of errors of English stress by Korean students. In this experimental study, 17 students participated and read 120 words which are divided into three types-the beginning, the middle, and the advanced-according to the level of words. As a result of acoustical judgement, there were a greater number of errors In the advanced level of words, and the more syllables the words have, the more errors occurred, tins means Korean students who learn English as a second language have trouble realizing the right stress in words with larger numbers of syllables and the more advanced level. Furthermore it is interesting that Korean students imposed the primary stress on the second syllable when producing words with stress in the first, third and forth syllables.

• 한국정보교육학회:학술대회논문집
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• 한국정보교육학회 2021년도 학술논문집
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• pp.355-360
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• 2021

코로나19는 학교 교육에 커다란 변화를 가지고 왔다. 원격수업을 통해 학생들의 학습권을 보장하고자 하였으나 대면수업에 비해 원격수업이 가지는 제한점은 뚜렷했다. 그럼에도 불구하고 원격수업이라는 방식은 분리된 시공간을 고려할 수 있으며, 학습자의 개별적이고 자율적인 학습이 가능하다는 측면에서 지속적으로 발전시켜 나가야 할 학습 방법임에는 틀림없다. 이에 본 연구에서는 초등학교 단계에서 실시간 원격수업 사례를 분석하고, 이에 대한 교사 면담을 통하여 초등학교 실시간 원격수업에서의 문제를 발견하고 이를 개선하고자 하였다. 사례를 통해 살펴본 초등학교 단위차시 실시간 원격수업에서의 문제점은 첫째, 원격수업이라는 낯선 환경의 불안감으로 인해 교사 활동 비중이 높은 수업이 된다는 점, 둘째, 실시간 쌍방향 수업임에도 불구하고 학생들의 개별 활동 점검이나 원활한 피드백 제공이 불가능하다는 점이었다. 이에 대한 해결방안으로는 기본적인 수업의 단계(도입-전개-정리)을 고려할 필요가 있다는 것과 적절한 소통과 피드백 제공을 위한 수업 도구의 활용을 제시하였다.

• 한국초등과학교육학회지:초등과학교육
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• 제22권2호
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• pp.138-148
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• 2003

This study was to analyze how elementary school science textbooks explain dissolution and to examine the patterns of elementary school teachers' conceptions on dissolution and the teaching practices on dissolution of elementary school teachers. According to the result of the textbook analysis, the textbooks based on the 7th curriculum didn't explain dissolution very differently from those based on the 6th curriculum. The contents dealing with dissolution in the textbooks of 7th curriculum became difficult gradually as the year went up, but the connected organization of the contents made students learn it easily. For example, in order to learn dissolution introduced first in the 3rd year 2nd semester textbook, students would tell soluble substance in water from insoluble substance in water as they put powdered substance in water. In the 5th year 1st semester textbook students were supposed to acquire the knowledge related to dissolution through the designed activities such as comparing solubility produced by different solvents and defining a solvent, a solute, dissolution, and a solution. In addition, teachers' guide for 5th year 1st semester textbook elucidated the principle of dissolution using attraction concept that was scientific. The result of the survey on teachers showed that 90% of elementary school teachers understood the dissolution of salt in water just as millet particles' filling the space between bean particles and they responded that they demonstrated millet particles' filling the space between been particles when they taught the dissolution of salt in water. When it comes to teachers who had the right idea on dissolution as the attraction conception, understanding was one thing and teaching was another, because they often instructed dissolution as the space conception in the real teaching.