• Journal of The Korean Association For Science Education
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• v.25 no.3
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• pp.371-381
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• 2005

In this study recent trends of research about beliefs in physics education were discussed and cultural approaches were suggested. Cultural aspects in the contexts of science education were discussed and diverse aspects of beliefs in physics education-beliefs about nature, physics, learning physics, value and expectation, and learning physics-were analyzed considerating cultural aspects. Finally, directions for future studies about beliefs and cultural approaches in physics education were suggested.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.01a
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• pp.231-234
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• 2014

본 논문에서는 디지털 교과서를 활용한 자기주도 문제해결학습 모형을 제안한다. 이 모형은 디지털 교과서를 활용한 수업에 대한 선행 연구 분석을 통해 디지털 교과서를 이용했을 때의 장점을 극대화하는 방향으로 설계되었다. 디지털 교과서를 활용했을 때 학습의 주도권이 교사에서 학생으로 넘어올 수 있도록 학생들이 디지털 교과서를 통해 제공되는 자료를 ICT 도구를 활용해 스스로 분석 정리하고 이러한 일련의 활동을 통해 학생들이 공부하는 방법을 자연스럽게 깨우치도록 하는 데 이 모형의 궁극적인 목적이 있다. 위와 같은 디지털 교과서를 활용한 자기주도 문제해결학습 모형을 학교 수업에 적용했을 때 기대되는 효과로는 문제해결력 향상, 학습에 대한 능동성 강화, 학습동기 증진, 수준별 학습 가능 등이 있다.

• Journal of the Korea Computer Industry Society
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• v.2 no.3
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• pp.297-308
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• 2001

We propose an algorithm which can reconstruct the 3D information from geographical information. The conventional techniques, the triangular patches and the Random Fractal Midpoint Displacement (RFMD) method, etc., have often been used to reconstruct natural images. While the RFMD method using Gaussian distribution obtains good results for the symmetric images, it is not reliable on asymmetric images immanent in the nature. Our proposed algorithm employs neural networks for the RFMD method to present the asymmetrical images. By using a neural network for reconstructing the 3D images, we can utilize statistical characteristics of irregular data. We show that our algorithm has a better performance than others by the point of view on the similarity evaluation. And, it seems that our method is more efficient for the mountainous topography which is more rough and irregular.

• Journal of the Korean Society of Earth Science Education
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• v.15 no.2
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• pp.158-170
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• 2022

The purpose of this study is to understand the characteristics of Aristotle's view of nature that is, the static view of the universe, and find implications for education. Plato sought to interpret the natural world using a rational approach rather than an incomplete observation, in terms of from the perspective of geometry and mathematical regularity, as the best way to understand the world. On the other hand, Aristotle believed that we could understand the world by observing what we see. This world is a static worldview full of the purpose of the individual with a sense of purposive legitimacy. In addition, the natural motion of earthly objects and celestial bodies, which are natural movements towards the world of order, are the original actions. Aristotle thought that, given the opportunity, all natural things would carry out some movement, that is, their natural movement. Above all, the world that Plato and Aristotle built is a static universe. It is possible to fully grasp the world by approaching the objective nature that exists independently of human being with human reason and observation. After all, for Aristotle, like Plato, their belief that the natural world was subject to regular and orderly laws of nature, despite the complexity of what seemed to be an embarrassingly continual change, became the basis of Western thought. Since the universe, the metaphysical perspective of ancient Greece and modern philosophy, relies on the development of a dichotomy of understanding (cutting branches) into what has already been completed or planned, ideal and inevitable, so it is the basis of traditional teaching-learning that does not value learner's opinions.

• Journal of Digital Contents Society
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• v.14 no.2
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• pp.161-169
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• 2013

Experiments and practices are critical instructional activities for teaching and learning natural sciences. However, by learning the experimental procedures in advance with the help of Virtual Experiments, natural science majors may address danger of handling chemicals before carrying out experiments in the laboratories. Virtual Experiments, a mobile learning app, provides learners with interactions between the learners and the contents by using the sensor built-in Android-platform smart phones. With the app, learners may handle the chemicals and experiment apparatuses, verify the reactions and assembly of the chemicals and instruments in advance. This paper describes the design and development of the Virtual Experiments in hope to promote the integration of mobile learning apps in order to better engage learners in the laboratories.

• 한국정보교육학회:학술대회논문집
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• 2008.01a
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• pp.236-241
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• 2008

수학과 수 연산 영역의 학습 부진 현상은 논리적 위계성이 뚜렷한 수학과의 특성상 이전 학년에서 발생된 학습 결손이나 이해의 부족이 다음 학년에서의 학습 방해나 장애로 이어지며, 이러한 과정의 반복은 학습 부진을 증대시켜 학습 불능에까지 이르게 되는 등 심각한 문제가 되고 있다. 수 연산 능력은 수학 학습의 가장 기초 기능일 뿐 아니라 우리 주변의 생활 속에서 문제 해결력을 키우고 다시 생활 속에 자연스럽게 활용할 수 있는 수학적인 힘을 기르는데 반드시 갖추어야 할 기본 능력이다. 이를 위해 본 연구에서는 수학과 학습부진아의 특성 및 지도에 관한 문헌을 검토 분석하고, 수학과 기초학력을 진단 및 부진 요인을 탐색하여 단계형 수준별 개별화 학습 프로그램을 설계하였으며, 이를 효과적으로 적용할 수 있는 방법을 탐색하였다. 그리고 학업성취도 및 수학 학습 태도에 대한 프로그램의 효과를 검증하였다.

• Journal of The Korean Association For Science Education
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• v.18 no.2
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• pp.173-182
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• 1998

This study investigated the influences of metacognitive learning strategies upon 6th-graders' achievement, science process skill, use of cognitive strategies, use of metacognitive strategies, self-efficacy, intrinsic value, attitude toward science class, and scientific attitude. The metacognitive learning strategies were developed on the basis of previous results and modified in a pilot study. Before the instructions, a pretest of motivation was administered, and used as a blocking variable. The score of previous achievement test was used as covariates for achievement and science process skill. Tests of use of cognitive strategies, use of metacognitive strategies, self-efficacy, intrinsic value, attitude toward science class, and scientific attitude were also administered, and their scores were used as covariates. After the instructions, a researcher-made achievement test, the Middle Grades Integrated Science Process Skills Test, and post-tests of above variables were administrated. Two-way ANCOVA results revealed that the scores of the treatment group were significantly higher than those of the control group for all tests except for science process skill. No interactions between the treatment and the level of the previous motivation were found. Educational implications are discussed.

• The Journal of the Acoustical Society of Korea
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• v.16 no.1
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• pp.104-109
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• 1997

This paper derives a new training alorithm for WHMM using the well-known MCE/GPD method with experimental results on the E-set. The derived algorithm generalizes the conventional adaptive training algorithm for WHMM, which means that HMMs of multiple competing classes can be trained at the same time. The recognition results on the E-set have shown about 15% and 12% improvement for training and test data, respectively.

• Communications of Mathematical Education
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• v.13 no.1
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• pp.361-379
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• 2002

본 논문은 재미있고 활동적인 기하 수업을 위한 학습자료를 제시한 것으로써 Amazing Triangle (NCTM, 1993)를 GSP를 활용하여 학교수업에서 사용할 수 있는 방안과 테셀레이션으로 확장시켜 도형의 각의 크기, 대칭과 변화, 합동 등의 학습을 통해 자연스럽게 기하에 관한 수학적 개념과 의미를 익히고 수학적 사고력과 창의력을 키우고자 하였다. 수학에 대한 정의적 측면에서의 향상과 동시에 타교과인 미술 분야에 수학이 어떻게 사용될 수 있는 가도 알 수 있다.

• Education of Primary School Mathematics
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• v.15 no.1
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• pp.31-40
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• 2012

In this paper, we developed teaching learning models using a numeral operation for the mathematical gifted focused on the design of a circle using GSP and investigated effects of this models. This model gave gifted-students to be able to produce creative outputs with mathematical principles and practicality and beauty of mathematics. We found following facts. Firstly, a developed teaching-learning model improves a mathematical gifted student's mathematical creativity as analytic thinking and deductive inference. Secondly, a circular design using GSP helps gifted students to understand the abstract rules because mathematical patterns was represented visually by a circular design. Lastly, a circular design using a numeral operation is helpful to gifted students revealing to creativity and beauty of mathematics.