• 한국과학교육학회지
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• 제23권5호
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• pp.561-573
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• 2003

학생들의 학업 성취에 교사가 결정적인 역할을 한다. 본 연구는 학교 현장에서 이루어지고 있는 과학 수업을 과학 예비교사들이 분석하였다. 과학 교사의 수업을 분석 위한 검사 도구는 수업, 학생 행동, 교사 행동, 발문의 4가지영역으로 구성되었다. 100명의 과학 교사의 수업을 예비 교사들이 참관한 것을 분석하였다. 그 결과, 예비교사들은 과학 교사의 수업은 탐구 중심으로 이루어지지 못하고 있는 것으로 분석하였다. 교사의 성과 연령의 특성에 따라서 과학 수업에 통계적인 차이가 없는 것으로 분석되었다. 또한, 과학 수업이 개념 중심 그리고 교사 중심으로 수업이 이루어지고 있음을 분석하였다.

• 한국생활과학회지
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• 제16권6호
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• pp.1119-1130
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• 2007

The purposes of this current study were to develop a pre-parent education class for university students and to examine the difference in their beliefs after the program. The subjects of this study were 86 students who were selected from one university in Kyunggido, South Korea. Students had pre-test and post-test to measure the changes caused by the program. Two instruments were used: Beliefs of Appropriate Education and Child Rearing Attitudes. The results of this study were as following: In the post-test, students showed higher scores on affectionate child rearing attitudes. More specifically, students endorsed expression of affection toward a child, positive mother-child relationship, emotional involvement, giving a child equal right after having pre-parent education class. In terms of beliefs on appropriate education, in the post-test students became put more value on process, child, play, experience- oriented learning compared to their pre-test scores. In sum, this pre-parent education class is an effective one, which improve future parents' beliefs and attitudes on appropriate education and child rearing practices.

• 공학교육연구
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• 제22권3호
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• pp.68-77
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• 2019

This study dealt with a case study on the application of flipped learning to solid mechanics in college of engineering and analyzed the results of Pre-class survey, In-class activities, and Post-class survey to examine the effects of flipped learning. Total sample size of the analysis was 32 students who applied for solid mechanics in mechanical engineering department, consisting of 23 students in sophomore, five in junior and four in senior. The class was operated in three stages: Pre-class, In-class, and Post-class. The response of the students was observed at each stage of the class. According to the results, flipped learning was effective in learning knowledge of major subjects in engineering, and students actively participated in class activities and conducted smooth discussions with team members. Flipped learning has also improved students' class concentration and academic ability. Most of the students have expressed their intention to take classes or actively recommend other students when the classes are held. Effective classes will require systematic discussion guidance because flipped learning is closely related to discussion activities.

• 한국초등과학교육학회지:초등과학교육
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• 제38권1호
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• pp.31-42
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• 2019

Through the criticism and evaluation of different classes teaching the same lesson topic, this study compared the viewpoints by two ways between two groups including pre-service and experienced teachers. Through free-style criticism, this study analyzed the differences between pre-service and experienced teachers' areas of attention. Through criteria-based analysis, the study analyzed the judgement of each area and the criteria of each judgement. The results of the study found that pre-service teachers criticised more limited areas, but somewhat more positive than their experienced teacher counterparts. Also, pre-service teachers did not observe thoroughly whether or not the teacher was well-informed of the science content, the sequence of curriculum, and whether or not meaningful interaction had occurred. As well as, pre-service teachers were not actually feel importance of student-oriented lessons, and they could not look room and materials are useful to students on students' sides. Additionally, pre-service teachers thought highly of lessons which were connected to other subjects rather than connected to daily life. Therefore, to notice diverse areas in the class, pre-service teachers need to criticise lessons using a diverse criterion. Also, pre-service teachers realized simple questions and that mechanical group activities are not always effective and that they need to think how to improve meaningful interaction. Moreover, they have to perceive that an inquiry-oriented student-lead approach is very important. Lastly, pre-service teachers have to closely consider the room efficiency and materials available to the students, and they must internalize that science class has to be connected with daily life.

• 한국학교ㆍ지역보건교육학회지
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• 제19권1호
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• pp.61-70
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• 2018

Purpose: The purpose of this study was to analyze the motivation of choosing a teaching profession, teacher efficacy, and satisfaction of teaching class of pre-health education teachers and compare the teacher efficacy, and satisfaction of teaching class by motivation of choosing a teaching profession group. Methods: The participants were 54 pre-health education teachers studying the teaching curriculum in 1 college located in S city. The collected data was analyzed with descriptive statistics, cluster analysis, ANOVA and Kruskal-Wallis using SPSS/WIN 21.0 program. Results: The average motivation of choosing a teaching profession, teacher efficacy, satisfaction of teaching class were above medium. After cluster analysis, 3 distinct groups emerged: motivation of choosing a teaching profession high group, motivation of choosing a teaching profession middle group, motivation of choosing a teaching profession low group. And the results showed significant differences in teacher efficacy, satisfaction of teaching class according to motivation of choosing a teaching profession group. Conclusion: The findings indicate that motivation of choosing a teaching profession affect the teacher efficacy, satisfaction of teaching class. Therefore It is necessary to identify the variables that influence motivation of choosing a teaching profession.

• 한국환경과학회지
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• 제23권8호
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• pp.1507-1512
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• 2014

Recognition of Korean pre-service elementary school teachers concerning the factor for the environmental class was investigated and analyzed by the factorial analysis. Korean pre-service elementary school teachers are aware of the factor of 'participation in environment' as well as the factor of 'environmental knowledge' for the environmental class. Furthermore, they had a very positive attitude about the factor of 'participation in environment'.

• 한국멀티미디어학회논문지
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• 제21권9호
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• pp.1068-1075
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• 2018

We propose a method for driving loudspeakers from class D audio power amplifiers in current mode, instead of in conventional voltage mode, which was impossible with the feedback circuitry. Unlike analog audio amplifiers, Class D audio power amplifiers have signal delay between the input and output signals, which makes it difficult to apply the feedback circuitry for current-mode driving. The idea of the pre-distortion scheme used for the compensation of the non-linearity of RF power amplifiers is adapted to remedy the impedance variation effect of the loudspeakers for current driving. The method uses the speaker model for the pre-distorter to compensate for the speaker impedance variation with frequency. The simulation and test results confirms the validity of the proposed method.

• 대한지구과학교육학회지
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• 제16권2호
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• pp.276-290
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• 2023

이 연구의 목적은 초등 예비교사들이 생각하는 성공적인 과학수업의 특징과 구체적인 요소에 대해 분석하는 것이다. 연구를 위해 초등예비교사 61명(여 47명, 남 14명)을 연구참여자로 모집하였다. 연구에 사용한 자료는 그룹별 및 개인별 수업실연 중 작성한 상호평가지이다. 자료의 양은 총 150페이지의 방대한 질적 자료였으며 이 자료를 질적 분석을 통해 귀납적 범주화하여 연구 결과를 도출하였다. 연구 결과를 요약하면 다음과 같다. 첫째, 성공적인 과학수업을 구성하는 요소는 7개 범주(14개의 하위 범주, 33개의 하위 요소)로 분석되었다. 구체적인 성공적인 과학수업을 구성하는 요소는 과학교과 내용, 수업운영, 교수학습방법 선정 및 수업내용 조직, 교수학습자료, 학생이해, 교수상황 이해, 수업관련 노력으로 분석되었다. 둘째, 예비교사들이 인식하는 성공적인 과학수업을 구성하는 요소의 구체적인 내용을 수집하여 예비교사들의 실제적인 수업의 모습을 기술할 수 있었다. 이상의 연구 결과에서 보듯이, 예비교사가 인식하는 성공적인 과학수업의 특징과 구체적인 요소를 파악할 수 있었으며, 이를 바탕으로 예비교사가 효과적인 과학수업운영을 위한 지원을 개발할 수 있을 것이며 이에 대한 지속적인 분석이 이루어져야 할 것으로 생각된다.

• Educational Technology International
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• 제19권2호
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• pp.175-197
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• 2018

Flipped classroom (FC) has gained attention as an active learning approach. Designing effective out-of-class activities to help prepare students for in-class activities is fundamental for successful implementation of FC. This study investigated the effectiveness of Goal-Based Scenarios (GBS) for out-of-class learning in FC. Four out of twelve units in a medical humanities course for Year 2 medical students was redesigned into a FC format, where e-learning modules were designed using a GBS approach for out-of-class activities and classroom debates were implemented for in-class activities. The other eight units were delivered in a conventional classroom debate format, which included reading text materials as pre-class assignments. A formative evaluation study was conducted using questionnaires and interview methods and students' academic achievements were evaluated by comparing their pre- and post-test scores between FC and conventional units. Students had positive perceptions of the e-learning modules in GBS approach and preferred the structure of learning in the FC format. Students' pre-test scores were slightly higher in the FC units, yet their post-test scores were comparable with conventional units. This study illustrates students' perceptions that the learning was bettered structured in FC and that the out-of-class learning using the GBS approach helped them better prepared for in-class activities.

• 한국방사선학회논문지
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• 제12권2호
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• pp.225-231
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• 2018

최근 학령인구의 감소와 대중매체의 발달로 교수자와 학생이 소통할 수 있는 새로운 교수법이 대두되고 있으며, 전문대학생들에 맞추어 플립드 러닝 교수학습모형을 적용하였다. 맞춤식 플립드 러닝 교수학습 모형 결과에서 전공과목 pre class 출석률은 92.3%의 결과로 나타났다. 그리고 전공이외의 교양 교과목의 pre class의 출석률은 87.6%로의 결과를 보여 주었다. 이러한 결과는 방사선과 1학년 재학생들의 전공과목 pre class출석률이 교양 교과목 pre class출석률보다 적극적인 참여가 있었다는 것을 알 수 있다. 맞춤식 플립드러닝 교수학습모형의 in class에서 적용한 연구 집단과 적용하지 않은 비교집단 간의 차이를 비교해 본 결과, 연구 집단이 비교집단보다 직무능력인 지식, 기술, 태도에서 모두 높은 점수를 보였다. 또한, 예비방사선사로서 갖추어야 할 직업기초능력으로 본 수업 모형을 적용한 결과 90%이상의 학습자들이 책임감, 문제해결 능력, 창의적 사고, 협동 능력, 의사소통 능력이 향상되었다. 맞춤식 플립드 러닝 교수 학습모형의 post class에서 방사선사 역할인지 차이 검증에서는 교수학습모형적용전의 평균이 2.10이였으나 적용 후의 평균은 4.40로 증가하여 나타났다. 맞춤식 플립드 교수 학습 모형을 적용한 결과 방사선과 직업기초능력을 함양하기위하여 본 교수학습모형이 적절하며, 이에 확대 적용할 필요성이 있다고 사료된다.