• Journal of the Korean Society of Earth Science Education
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• v.11 no.2
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• pp.107-115
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• 2018

To learn the Earth's shape is a very important achievement standard in the earth science education. The purpose of this study is for helping school experiments by investigating effective experiments of the Earth's shape of each stage of school. Researchers suggest various experiment methods to learn the Earth's shape and investigated appropriate experiments to stage of elementary school, secondary school, high school and university for 26 pre-service teachers. As a result, there is difference between schools in effective experiments of the Earth's shape. Pre-service teachers thought that to observe a sail of ship to come back to a harbour is effective for elementary school students. And they responded that to compare the altitude of the polar star by latitudes is good for the secondary and high school students and to compare difference of sight according to height of the ground is effective for university students. They thought that level of the experiment method, abstract thinking and depth of background knowledge should be considered when teachers choose an effective experiment of the Earth's shape.

• 한국지구과학회:학술대회논문집
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• 2006.02a
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• pp.153-153
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• 2006

• Journal of Korean Elementary Science Education
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• v.27 no.1
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• pp.31-41
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• 2008

The purpose of this research is to investigate the preconceptions of the Earth for 3rd grade students in elementary school. For this study, We interviewed with 30 students and children responded the questions with drawing the pictures. Through the study, We could find as followings. First, they thought that the shape of Earth is sphere only except one who had double conceptions of sphere and flat. Second, the color of the earth seems to be blue because of sea, but mostly answered, it seems to be green more than brown because of continent. Third, the conceptions of the gravity showed us 43% which is the kinds of scientific conceptions for the Earth.

• The Magazine for Energy Service Companies
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• s.86
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• pp.74-75
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• 2014

비닐백이 시장을 점령하기 전 어머니 손에 들려있던 알록달록한 장바구니를 기억하는가! 비록 색상과 모양은 평범했지만 환경을 생각하는 면에서는 최고였다. 장바구니가 평범한 역할을 벗어나 요즘 '에코백'이란 이름으로 주부는 물론 학생, 직장인들에게도 사랑 받는 패션아이템이 되었다. 에코디자인의 대표주자이며, 지구를 지킬 수 있는 친환경 소재로 거듭나고 있는 에코백의 무한한 변신을 만나보자.

• Journal of Korean Elementary Science Education
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• v.27 no.4
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• pp.385-398
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• 2008

The purpose of this study is to understand the effect of The Model of Phases of the Moon on conception changes for preservice teachers. The researcher interviewed two preservice teachers under the agreement with them on their participation in the research just before he performed a class using The New Model of Phases of the Moon. The post-interview with the same content as the pre-interview was preformed one month later. The main content of the interview is as follows; 'Explain the shape of the Moon by drawing it.', 'Explain the relative different position among the Sun, Earth, and Moon depending on phases of the Moon by drawing them.', 'What do you think of the cause of phases of the Moon?', 'Draw a picture to explain why we always see only one side of the moon.' The results of the research are as follows. First, the class with New Model of Phases of the Moon was able to perceive the relationship of Sun, Earth, and Moon in three-dimensions rather than in two-dimensions and it helped to change their misconception that the Moon's shadow causes the Moon's shape. Secondly, the class with New Model of Phases of the Moon helped preservice teachers understand better the different positional relationships among the Sun, Earth, and Moon depending on the Moon shapes. Third, the class adopting the New Model of Phases of the Moon help preservice teachers form scientific conceptions on the causes of phase change of the Moon. Fourth, the class with the New Model of Phases of the Moon is not appropriate for explaining the reason why only one face of the Moon is seen. Based upon the results above, the researcher realized the limitation of this model and suggested that this model would help learners understand phase change of the Moon and increase space perception ability.

• Journal of the Korean earth science society
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• v.18 no.6
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• pp.565-578
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• 1997

Clouds are usually formed by adiabatic cooling through ascending currents, radiation cooling or a mixture of warm air and cold one. Ascending currents are caused by covection currents, or they are accompanied with fronts. Thus clouds are formed through various kinds of causes and procedures. So they are various in height and shape. Form of clouds was classified on the basis of the thecriteria that L. Howard proposed in 1803. He distinguished three simple, fundamental classes-Cirrus, Cumulus, Stratus-from which the others were derived by trasition or association. And they are subdivided into 10 genera according to their height and shape. Most of the clouds are subdivided into the detailed kinds to the characteristics such as appearance or intensity of convection current. Sometimes completly different shape of cloud can be developed out of the 'mother-cloud'. In korea, the stratocumulus, altostratus and cirrus clouds frequently appear. Generally we are likely to have rain or snow from the stratus cloud forms(As, St, Sc) and rain shower or hail from the cumulus forms(Ac, Cu, Cb).

• Geophysics and Geophysical Exploration
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• v.6 no.3
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• pp.134-137
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• 2003

A scheme for missing-trace interpolation of linear events is proposed. For a two-dimensional seismic dataset which contains linear events, a post-interpolation spectrum can be estimated from a portion of the original aliased spectrum. The restoration of missing trace data is accomplished by minimizing the energy after applying a filter which has an amplitude spectrum that is inverse to the estimated spectrum.

• 주택과사람들
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• s.191
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• pp.68-71
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• 2006

파리에서도 포부르 지구는 최신 유행을 만날 수 있는 곳으로 유명하다. 이 거리를 걷다 보면 유난히 낯설고 이질감이 느껴지는 모양의 퐁피두센터를 만날 수 있다. 루브르 박물관과 오르세 미술관과 더불어 예술과 문화 도시 파리의 대표적 명물로 자리매김한 퐁피두센터를 탄생시킨 주인공 렌조 피아노를 만나보자.

• 식품문화 한맛한얼
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• v.4 no.2
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• pp.195-198
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• 2011

지구 온난화가 심각하긴 심각한 모양이다. 한반도가 아열대기후로 바뀌면서 폭염으로 인한 사망이 이제 더 이상 먼 나라 이야기가 아니며, 더불어 여름철 건강관리에도 비상이 걸렸다. 가만히 있어도 땀이 줄줄 흐르는 더운 여름, 어떤 음식을 먹어야 건강을 유지할 수 있을까?

• Journal of the Korean earth science society
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• v.42 no.1
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• pp.118-131
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• 2021

The purpose of this study was to investigate the characteristics of evidence-based reasoning practiced by middle school gifted students. Data were collected through an online task in which middle school students in gifted education institutes of a university located in the metropolitan area, Korea, performed inquiry about the shape of a planet's orbit. The students were given data of Mercury's greatest elongations and asked to draw the planet's orbit with the data. Each of the students was also asked to provide his or her hypothesis of Mercury's orbit before the drawing and to reason about the orbit again using his or her own drawing as evidence. The content analysis of the students' reports revealed 5 different types of judgement about the shape of Mercury's orbit, 4 types of reasoning about the hypothesis and evidence, and the characteristics of evidence-based reasoning within the judgement types. Based upon the analysis results, the importance of proper interpretations of evidence in evidence-based reasoning, the core role of the theory-evidence coordination, and the usefulness of working with multiple hypotheses were discussed. In addition, implications for earth science education were suggested.