• 한국초등수학교육학회지
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• 제20권1호
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• pp.35-53
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• 2016

이 연구는 우리나라 초등학교 예비 수학교사들의 수학 교수 효능감이 어느 정도인지를 분석한 것이다. 강문봉과 김정하가 개발한 효능감 측정 도구를 이용하여 분석하였으며, 3개 교육대학의 수학교육과 2학년과 4학년 164명을 대상으로 분석하였다. 분석 결과 예비 초등 수학교사들의 수학 교수 효능감은 약간 긍정적인 수준에 있으며, 남녀 또는 고등학교 때의 이수 계열이나 대학교의 학년 사이에 통계적으로 유의한 차이는 없었다. 그러나 지역간에 어느 정도 유의한 차이가 드러났으며, 특히 사회문화적 영향에 대한 신념은 다른 요인에 비해 상당히 낮게 나타났다.

• Bulletin of the Korean Chemical Society
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• 제34권3호
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• pp.768-772
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• 2013

Layered mixed metal hydroxy double salts (HDS) with the formulas $(Cu_{0.75}Ni_{0.25})_2(OH)_3NO_3$ ((Cu, Ni)-HDS) and $Cu_2(OH)_3NO_3$ ((Cu, Cu)-HDS) were prepared via slow hydrolysis reactions of CuO with $Ni(NO_3)_2$ and $Cu(NO_3)_2$, respectively. The crystal structures, morphologies, bonding natures, and magnetic properties of (Cu, Ni)-HDS and (Cu, Cu)-HDS were characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transformation infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and a superconducting quantum interference device (SQUID). Even though (Cu, Ni)-HDS has a similar layered structure to that of (Cu, Cu)-HDS, the bonding nature of (Cu, Ni)-HDS is slightly different from that of (Cu, Cu)-HDS. Therefore, the magnetic properties of (Cu, Ni)-HDS are significantly different from those of (Cu, Cu)-HDS. The origin of the abnormal magnetic properties of (Cu, Ni)-HDS can be explained in terms of the bonding natures of the interlayer and intralayer structures.

• Journal of Information Display
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• 제13권1호
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• pp.17-20
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• 2012

The current panels for liquid crystal display (LCD) TV sets are all characterized by pins placed on two sides. To manufacture one type of panel, a dedicated mask is needed, and the production line should be started once. Moreover, the whole panel needs to be removed if a dead pixel is found. If the panel, however, will first be fabricated with pins placed on four sides and then divided by a cross-cut into four equal-sized panels with pins placed on two sides, one set of masks can be used to manufacture two types of LCD panels, which was referred to by the authors as dual mode. In this paper, the concept of the dual mode and its differences from the conventional way of producing panels are introduced. Its advantages in boosting production efficiency, improving the product's good rate, and lowering the production cost are also described based on case studies. Of particular importance is the fact that the dual mode is very suitable for the trial production of very-large-area LCD TV sets.

• 한국식품영양학회지
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• 제19권4호
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• pp.343-351
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• 2006

This study was conducted to investigate food habits and eating behavior of preschool children. Food habit, eating behavior and health status were investigated by using a questionnaire answered by the mothers of 312 children aged 6 to 7 years old who lived in Uiwang. The average height, weight, Kaup index were 115.08cm, 21.41 kg, 16.13, respectively, for boys 111.37 cm, 19.93 kg, 15.72 for girls. Results showed that 72.16% of subjects skipped the breakfast meal. One of the main reason fur skipping breakfast was 'no appetite'(53.14%). It was found that 49.67% of the subjects belonged to 'good' in health status. The eating behavior of 'watching TV or playing a toy during meal' and 'can eat the rice by oneself were significantly higher score in girls than in boys(p<0.05). Food attention of the parents for the health of children was the highest in 'keep regular meals a day'(92.65%). Health status showed significantly negative correlations with kaup index and eating behavio(p<0.001). Kaup index(p<0.05) and health attention(p<0.001) were positively related with eating behavior. Based on this study, nutritional education program for preschool children would be required for the dietetics teacher to guide the children and more attention should be paid to the nutritional education of food habits in this age group and their mothers.

• 한국환경교육학회지:환경교육
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• 제21권2호
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• pp.40-50
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• 2008

The purpose of this study was that verify the difference of pro-environmental behavior according to be present or not of experience environmental education for developing pro-environmental and show basic material to prepare efficient operation plans of experience environmental education is based on factor which effect of pro-environmental behavior difference according to the types. Elementary schools were divided through existence and nonexistence of an experience environmental education than I was checked up the pro-environmental behavior of students, who joined in different environmental educations each other. It was analysis by dividing into an environmental education of school, an educator (teacher, environmental-interpreter), and fields for environmental education (school inside and outside) to know types of experience environmental education. In result, elementary schoolers who experienced an experience environmental education at school class, had higher an environment-friendly behavior and elementary schoolers, who experienced an experience environmental education at class from environmental-interpreter, had higher an environment-friendly behavior by and large. As a result, this study showed that the area based on their residential quarter and an experience environmental education with realistic plans to connect with social environmental education for developing pro-environmental carrying out the most positive effect.

• 한국지구과학회지
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• 제42권5호
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• pp.588-603
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• 2021

This study details a researcher's self-study journey in advancing from a computational thinking (CT) novice to an expert. The researcher went through a four-stage process, with a preliminary literature review preceding the four stages. From the literature review, the computational thinking analysis (CT_AT) tool was developed for use in stage one to analyze science, technology, engineering, art, and mathematic (STEAM) modules. Although no discernable patterns were found in analyzing the five science and five engineering-based modules, the analysis revealed which CT practices were missing or weakly exposed. In stage two activities were suggested to promote these missing or weakly exposed practices. Stage three required the researcher to develop his own STEAM module from the viewpoint of exposing students to CT. The fourth stage was to validate the CT_AT through interviews with pre-service and in-service teachers. These interviews led to changes in the CT_AT tool and, as a result, the researcher produced a guidebook that could be used by teachers in their own CT studies. This guidebook can be used by teachers to develop and become competent in CT skills.

• Journal of the Korean Wood Science and Technology
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• 제51권5호
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• pp.392-409
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• 2023

The amount of wood waste from furniture production is increasing. Wood waste is diverse and ranges from wood-splitting residues to leftovers from furniture production. Wood waste occurs in companies, household-based industries, and other forms of business where waste accumulates; therefore, an environmental and ethical policy is needed. The aim of this study was to identify products created using wood waste and describe government regulations related to environmental policies. We analyzed the management of wood waste for use as a new product so that it is useful, does not become waste, and complies with policies related to environmental ethics. A case study design using qualitative methods was used. This research focused on managing wood waste in Jepara's furniture and crafts industry for the 2010-2021 period, using 23 sources from primary, secondary, and other supporting documents. Data were collected through observation or gathering information related to research needs, conducting closed-door interviews with research sources, documenting data to strengthen research findings, and using online questionnaires to corroborate information related to wood waste management. This article presents wood waste products designed with optimized environmental ethics and awareness of environmental laws in wood-based industries.

• Advances in nano research
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• 제16권6호
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• pp.615-622
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• 2024

This study investigates the impact of educational management on the performance of scholars in the field of nano/micro-level composites. The objective is to understand how effective management strategies can enhance the academic achievements and research outcomes of students specializing in this advanced area of materials science. Through a combination of qualitative and quantitative methodologies, data was collected from various educational institutions renowned for their programs in nano/micro-level composites. Our results indicate that tailored educational management practices significantly improve student performance. Key strategies identified include personalized mentorship programs, interdisciplinary collaboration opportunities, and access to state-of-the-art laboratory facilities. Institutions that implemented these practices observed a marked increase in the quality and quantity of research outputs, higher student satisfaction rates, and improved post-graduation employment prospects in relevant industries. Furthermore, the study highlights the importance of continuous professional development for educators to stay abreast of the latest advancements in nano/micro-level composites. By fostering an environment of innovation and support, educational management can play a crucial role in shaping the next generation of researchers and professionals in this cutting-edge field. These findings underscore the necessity of strategic educational management in optimizing the academic and professional trajectories of scholars in nano/micro-level composites, ultimately contributing to advancements in technology and industry applications.

• 대한공업교육학회지
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• 제39권1호
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• pp.227-246
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• 2014

이 연구의 목적은 창의적 체험활동의 하위 영역인 동아리활동에 대한 공업계 고등학교 교사들의 인식을 조사하여, 향후 공업계 고등학교의 특성에 맞는 창의적 체험활동을 할 수 있도록 바람직한 방향을 제시하는데 필요한 기초 자료를 제공하는 것이다. 이 연구의 응답자는 전국의 공업계 고등학교에 재직 중인 교사 393명이고, 동아리활동에 대한 5개 영역 32개 분야의 문항(중요도, 반영도)으로 구성된 설문지를 활용하였다. 연구의 결과는 다음과 같다. 첫째, 동아리활동 영역에서 중요도 분석 결과, '학술 활동'은 '발명', '문화 예술 활 동'은 '영상예술', '스포츠 활동'은 '도전활동', '실습 노작 활동'은 '학교 특성화 전공', '청소년 단체 활동'은 '스카우트연맹'과 '청소년적십자'가 가장 높게 나타났다. 둘째, 동아리활동의 영역에서 반영도 분석 결과 '학술 활동', '문화 예술 활동' 및 '스포츠 활동' 영역은 대체적으로 공업계 고등학교 교사들이 생각하는 중요도에 비슷하게 반영되고 있었다. 하지만 '학교 특성화 전공'을 제외한 '실습 노작 활동'과 '청소년 단체 활동'의 경우는 중요도와는 별개로 모든 분야가 잘 반영되지 않고 있는 것으로 나타났다. '실습 노작 활동'은 중요도 분석과 반영도 분석이 비슷하게 나타났지만 '청소년 단체 활동'은 중요도에 비해 반영도 값이 현저히 낮게 나타나 중요도와 반영도에 큰 차이가 있었다.

• 한국보육지원학회지
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• 제7권4호
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• pp.301-324
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• 2011

본 연구는 1차 평가인증지표를 토대로 평가인증을 받은 어린이집에 근무하는 보육교사를 대상으로 평가인증 경험에 따라 평가인증의 운영과 제2차 평가인증 지표의 실현성에 대한 인식에 차이가 있는지를 살펴보았다. 이를 위해 1차 평가인증에 통과한 40인 이상 어린이집에 근무하는 보육교사 193명을 대상으로 설문조사를 하였으며, 빈도분석, $X^2$ 검증, t-검정을 이용하여 분석하였다. 그 결과 보육교사의 평가인증 경험에 따른 평가인증제 운영에 대한 인식의 차이는 평가인증통과 후 사후 유지관리에 중요하다고 생각하는 사항에서만 나타났다. 인증경험이 없는 교사는 '시설장 및 보육교사의 전문성 향상을 위한 지속적인 교육'을, 인증경험이 있는 교사는 '보육교사의 의지 및 지속적 근무'를 가장 중요하게 인식하는 것으로 나타났다. 교사의 평가인증 경험에 따른 인증지표의 실현성에 대한 인식은 보육환경 영역의 '예술활동자료', 운영관리 영역의 '보육시설의 운영방침 및 정보 안내', '원아에 대한 관리', '종사자의 근로계약', 건강과 영양 영역의 '식자재, 조리 및 배식과정의 위생적 관리', '아프거나 다친 영유아의 보호', '영유아와 종사자의 건강관리', '영유아를 위한 간식', 안전영역의 '영유아의 안전한 인계과정' 항목에서 평가인증 경험이 있는 보육교사가 경험이 없는 교사에 비해 실현성이 높다고 인식하는 것으로 나타났으며, 전반적으로 모든 영역에서 평가인증 참여경험이 있는 교사가 제2차 평가인증지표의 실현성을 높게 인식하는 것으로 나타났다.