• 한국지구과학회지
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• 제28권6호
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• pp.699-706
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• 2007

본 연구의 목적은 지구 시스템 과학을 학습하는 학생의 개념과 사고에 직접적인 영향을 미치게 될 지구과학 예비 교사들의 물 순환의 구성 요소와 순환 과정에 대한 인식을 밝히는 것이다. 국립사범대 지구과학교육학과에 재학 중인 지구과학 예비 교사 50명을 대상으로 개념 그리기 방법을 적용하여 물 순환의 구성요소로 응답한 개념들을 지구 시스템의 하위계인 수권, 기권, 암권, 생물권의 범주로 코딩하고, 물의 순환 과정으로 응답한 요소들로부터 지구 시스템 하위계의 상호작용에 대한 인식을 분석하였다. 예비 지구과학 교사들은 물 순환의 구성요소를 주로 수권과 기권에 한정하여 인식하고 있으며, 생물권에서 식물과 동물의 작용에 대한 인식이 매우 부족하고 특히 인간이 물의 순환에 미치는 영향에 대한 인식은 극히 드물었다. 물의 순환 과정에 대해서는 대부분의 예비 교사들이 증발과 강수만을 순환 과정으로 인식하고 있으며, 지표면의 이동에 비해 지하에서의 이동에 대한 인식이 부족하였다.

• 한국과학교육학회지
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• 제29권4호
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• pp.450-462
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• 2009

이 연구에서는 교육실습이 중등 예비교사들의 순환 학습에 대한 인식에 미치는 영향을 순환학습에 대한 이해도에 따라 조사했다. 2개 사범대학의 화학교육과 4학년 학생 37명을 대상으로 교육실습 전에 순환학습에 대한 이해도와 인식 검사를 실시했고, 교육실습 후에는 순환학습에 대한 인식 검사를 실시했다. 또한, 순환학습에 대한 인식이 크게 감소한 예비교사 7명을 선정하여 인식 감소에 영향을 미친 요인을 조사하기 위한 심층면담도 실시했다. 연구 결과, 교육실습 전 중등 예비교사들의 순환학습에 대한 이해도는 높지 않았으나, 순환학습의 장단점이나 실행의지, 실행과 관련된 외부요인 등의 측면에 대해 비교적 긍정적으로 인식했다. 그러나 교육실습을 마친 후에는 이런 긍정적인 인식이 다소 감소했으며, 특히 순환학습에 대한 이해도가 낮았던 예비교사들보다 높았던 예비교사들의 감소폭이 더 컸다. 그 원인으로 면담에 참여한 예비교사들은 예비교사 요인, 학생 요인, 교육과정 요인, 외부환경 요인을 지적했다. 이에 대한 교육적 함의를 논의했다.

• 한국초등과학교육학회지:초등과학교육
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• 제33권2호
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• pp.306-321
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• 2014

This study aims to analyze difficulties that pre-service elementary teachers experience in investigating the life cycle of a common cabbage butterfly in person. As difficulties they face during the process of this research, they pointed out collecting eggs, observing molting, creating environments for a breeding cage, feeding, building a breeding cage, and making butterfly specimens. Out of all the environmental difficulties related to their school fields, they pointed out a difficulty of time management most of all, followed by placing a breeding cage in the classroom and the lack of microscopes for observation. In regard to difficulties related to their evaluations on students' activities, they found it difficult to evaluate students' activity with the life cycle of an insect in the aspect of knowledge and even to set evaluation criteria. Besides, many of them responded that it would be appropriate to evaluate a research on the life cycle of an insect through a portfolio or an observation journal. In regard to difficulties in terms of teachers' knowledge, they found it difficult to understand insect molting, metamorphoses, complete metamorphoses, incomplete metamorphoses, the structure of an insect body, and how to distinguish a female insect from a male one. In regard to the application of class models, they knew it is important for students to have various experiences through direct observation, so the experience-based learning model was proper for the process of observing the life cycle of a common cabbage butterfly. However, they found it difficult for students to observe each stage of the life cycle in person.

• 한국초등과학교육학회지:초등과학교육
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• 제37권3호
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• pp.309-322
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• 2018

There is no doubt that science -and, therefore, science education- is central to the lives of all (NGSS, 2013). This manuscript focuses on ideas in astronomy that are at the foundation of elementary students' understanding of the discipline: the apparent motion of the sun explaining the day / night cycle on Earth. According to prior research demonstrating that neither children nor adults hold a scientific understanding of the big ideas of astronomy (NRC, 1996), understanding of concepts may base students' progress towards more advanced understanding in the domain of astronomy. We have analyzed the logic of the domain and synthesized prior research assessing children's spatial representation from an earth- and a space based perspective to develop a set of learning trajectories that describe how students' initial ideas about apparent celestial motion as they take school science can be build upon. In this study elementary students' representations were compared by their resident context including urban and rural. This study may present a first look at the use of a learning progression framework in analyzing the structure of astronomy education. We discuss how this work may eventually lead towards the development and empirical testing of how children learn to describe and explain apparent patterns of celestial motion.

• 가족자원경영과 정책
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• 제11권1호
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• pp.65-81
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• 2007

The purpose of this study is to analyze income and consumption expenditure patterns over the family life cycle. The data used in this study is the 2004 Survey data from the Annual Report on the Family Income and Expenditure Survey data which are included salary and wage earners' households living in urban areas. The income and expenditure data of 20,383 households are analyzed. The family life cycle is classified into six stages and the items of expenditure are classified into 12 categories. The data are analyzed by descriptive statistics, $X^2$ test, F-test, and Duncan's multiple range test using SAS 8.0 package program. The major findings of this study are as fellows: First, the average monthly family income of the total sample is 3,480,000 won. The proportion of regular and irregular income among the total family income is 95.5% and 4.5% respectively. Second, the amount and ratio of monthly regular income fur each category are significantly different over the family life cycle. Third, the average monthly family expenditure of the total sample is 2,250,000 won. The amount and ratio of monthly expenditure of all items are significantly different over the family life cycle. The highest expenditure item is the traffic expanse and phone charge.

• 여성건강간호학회지
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• 제21권1호
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• pp.43-54
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• 2015

Purpose: This study was conducted to identify the problem of bone health and potential influencing factors of bone mineral density (BMD) for women across the life cycle of menopause. Methods: Complex sampling design data analysis was performed on the fifth Korea National Health and Nutrition Examination Survey 2010 in order to identify the problems with bone health, BMD and its influencing factors in 3,499 women who answered the menopausal status. Women's life cycle was categorized by premenopausal, postmenopausal, and elderly. Results: 35.1% of premenopausal women, 73.3% of postmenopausal women, and 96.0% of elderly women had problems with bone health that were related to low BMD. Influencing factors of BMD were residential area, alcohol drinking, and body mass index (BMI) for premenopausal women; age, residential area, education, marital status, income, and BMI for postmenopausal women; and age, education, and BMI for elderly women. Conclusion: Problems with bone health required to be considered as a major health problem in all women regardless their life cycle. Interventions to maximize BMD need to be developed by considering its influencingfactors across the women's life cycle.

• 한국초등과학교육학회지:초등과학교육
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• 제41권2호
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• pp.432-442
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• 2022

본 연구는 초등과학 '식물의 한살이' 단원 온라인수업에 적용할 메이커교육프로그램을 개발하고 그 효과로 과학에 대한 흥미도와 창의적 문제해결력에 미치는 영향을 알아보는 것이다. 개발된 메이커교육프로그램의 주제는 '식물의 한살이를 주제로 동화 오디오북 만들기'이다. 프로그램은 TMI 메이커교육 모형 단계에 따라 학습한 개념을 활용하여 창의적 오디오북을 제작하는 활동으로 구성하였다. 연구결과, 초등과학 '식물의 한살이' 단원 온라인수업에 메이커교육프로그램은 초등학생의 과학에 대한 흥미도와 창의적 문제해결력에 긍정적인 영향을 미쳤다. 따라서 초등과학 온라인수업에 메이커교육의 적용은 학생들의 과학에 대한 흥미도와 창의적 문제해결력 향상에 효과적이다. 그리고 초등과학 온라인 수업에 메이커교육을 활발하게 적용할 수 있는 추가적인 연구가 필요하다.

• 한국시스템다이내믹스연구
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• 제13권4호
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• pp.81-99
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• 2012

The main purpose of this study is to explore the effects of the teaching and learning strategy for systems thinking education in elementary students. For this, we developed the teaching and learning material for the systems thinking education based on the book, namely "The tip of the iceberg," and applied to the control group(N=97) of the all students(N=201). The results were as follows. Firstly, the products of the control groups showed more cycle loops than non-control groups. Secondly, the prominent difference of the number of cycle loops was displayed by the 5th graders between control and non-control groups. Thirdly, in this study, applying the teaching and learning strategy for systems thinking education didn't increase the students' thinking ability in terms of quantity. Consequently, this study showed that improving systems thinking ability of higher elementary students is possible through the teleological education.

• 한국운동역학회지
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• 제24권1호
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• pp.1-9
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• 2014

The purpose of this study was to investigate the muscle mechanical properties of the pelvic axial pre-rotational movement for the Jireugi in the Taekwondo Juchumseogi stance. Eleven elite Taekwondo Poomsae athletes participated. Each participant performed 5 right hand Jireugi in Juchumseogi stance as fast and strong as possible while their motion was recorded by a 3D motion analysis system and the ground reaction forces by two force plates. The power and work of the muscular group surrounding the waist were analyzed to verify the effect of the stretch-shortening cycle (SSC) theory. The cause of the greater power seems to be the application of the SSC by the muscles surrounding the waist during the preparation phase of the pre-rotation group. For the none pre-rotation group, they only used the concentric contraction of the muscles surrounding the waist. Because the pre-rotation group used the SSC theory, they had the effect of shortening of the range of movement, creating a fast and more powerful rotation, thus anticipating the increase the magnitude of impact.

• 가정과삶의질연구
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• 제7권1호
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• pp.1-14
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• 1989

The purpose of this study was to identify the problems in the consumption life of household over the family life cycle so that they would support to select the consumer education subjects and the establish the long-term household plan. For these purposes, a survey was conducted using questionnaire. The data used in this study included 562 homemakers living in Seoul. Statistics used for data analysis were frequency distribution, Mean, Percentile, One-way Anova, Scheffie-test, Multiple Classification Analysis. Major findings were as follows; 1) In the level of the problems in the consumption life of household, housing problem, durable goods problem, healthy-medical problem and child education problem area were in the low level. Leisure problem and properties management problem area were in the high level. 2) The problems in the consumption life of household differed significantly over the family life cycle. 3) When controlling family monthly income and education level of husband was compared with not-controlling them, the influences of family life cycle on the problems in the consumption life were as follows. (1)At housing problem area, the effect of the FLC was higher in controlling them than not-controlling them. (2) At other problems the effects of the FLC was lower or same in controlling them than not-controlling them.