• 대한지구과학교육학회지
• /
• 제7권1호
• /
• pp.34-42
• /
• 2014

The purpose of this study was to examine the effects on the effects of science lessons using six thinking hats techniques on creativity and science academic achievement. To verify the research problem, the subject of this study was fourth-grade students selected from four classes of an elementary school located in Busan. For ten weeks, the experimental group of 40 students was taught using the six thinking hats techniques. The comparative group also of 40 students, was taught in normal classes which used a Text-book. Children were given a creativity test and academic achievement test in science to measure the effects on six thinking hats techniques. Likert scales were used to gather students feedbacks on creativity and science academic achievement. Through these procedures, the following results were obtained: First, the six thinking hats techniques had a more effect on creativity than the normal classes, where a text-book was used. Second, the six thinking hats techniques could be seen to be effective in improving the student's academic achievements in science than the normal classes which used a Text-book. Third, the result of the student recognition investigation, we could know that the students showed lots of interest in the science lessons using six thinking hats techniques, and they were able to understand the scientific theories. As a result, the elementary science class with six thinking hats techniques had the effects of developing creativity and science academic achievement. It means the science class with six thinking hats techniques has potential possibilities and value to develop creativity and science academic achievement.

• 한국초등과학교육학회지:초등과학교육
• /
• 제36권1호
• /
• pp.31-42
• /
• 2017

This study aimed to investigate the effect of science class using multiple intelligence on science learning motivation, academic achievement and science process skill of elementary student. The number of participants were 98, 4 classes of $3^{rd}$ graders in G elementary school in B city. The experimental group, 2 classes including 49 participants, had science classes using multiple intelligence while the comparative group, 2 classes including 49 participants, took ordinary teacher-driven lessons using teacher's guidebook. Pre and post tests were done before and after executing lessons to assess the changing in each group's science learning motivation, academic achievement and science process skill. The results of this study can be summarized as follows: First, the pre and post test results of science learning motivation revealed that the experimental group had higher improvement compared to the comparative group and the difference was meaningful. Second, the post test results of the science academic achievement showed that the experimental group had higher average value compared to the comparative group and the difference was meaningful. Third, the pre and post test results of basic science process skill showed that the experimental group had higher average value compared to the comparative group and the difference was meaningful, especially in inference and prediction elements.

• 대한치위생과학회지
• /
• 제5권1호
• /
• pp.1-11
• /
• 2022

Background: This study aimed to examine the effectiveness of role-play in dental hygiene education by analyzing learners' perceptions and experiences of role-play classes. Methods: Role-play was used as a teaching method to run dental medical communication and practice classes for 31 3rd graders in the Department of Dental Hygiene to investigate the learner's perception of role-play classes, effectiveness of the classes, and learner's perception of the experience. The Mann-Whitney U test was used to analyze the differences in learners' perceptions of the role-play classes according to the main characteristics related to dental health communication education. Results: The correlation coefficient between awareness of dental communication education (4.74 ± 0.35) and awareness of role-play classes (4.44 ± 0.48) was an Rs of 0.634, showing a significant positive correlation (p<0.001). Conclusion: Learners recognized that dental hygiene communication competency is important for dental hygienists. In addition, a strategic teaching design is necessary to reduce the learner's burden on role-play considering the learner's experience, which is perceived as a disadvantage of role-play

• 한국초등과학교육학회지:초등과학교육
• /
• 제26권1호
• /
• pp.97-107
• /
• 2007

The purpose of this study is to discover and develop any implications which may arise in relation to science teachers' professional growth and development by investigating the difficulties experienced by elementary school teachers in science classes. 196 elementary school teachers were requested to write an anecdotal report regarding their science lessons. 30 science teachers in middle school also answered the same questionnaire. By means of inductive categorical analyzing, the difficulties were grouped into several categories. The results were as follows: (1) The difficulties elementary teachers experience in their science lessons fall into three categories; 'professional science knowledge(9.8%)', 'science laboratory activities(78.3%)', 'teaching methodology(11.2%)'. (2) Science teachers in middle school experienced similar difficulties. However, distribution differed from that of elementary school teachers; 'professional science knowledge(39.0%)', 'science laboratory activities(35.6%)', 'teaching methodology(27.1%)'. (3) The causes of these difficulties were identified as follows; a lack of time to prepare for science classes, insufficient substantial pre-service teacher education, and a lack of adaptive support to elementary school teachers.

• 과학교육연구지
• /
• 제38권1호
• /
• pp.78-95
• /
• 2014

일반적인 수업에서 도입부는 동기유발 기능을 담당하는 중요한 역할을 한다. 수학수업도 예외는 아니어서 도입부의 동기유발을 어떻게 구성했는가는 수업의 성패를 좌우하는 요소의 하나가 된다. 이 연구는 동기유발이라는 관점에서 수학수업 도입부 구성의 중요성을 인지하고, 현재 초등학교 교사들의 수학수업 도입부 운영방식을 살펴보고자 한다. 이를 위해 6학년 '원기둥의 부피'를 주제로 초등학교 현직 교사들이 작성한 19편의 지도안과 우수수업동영상 2편을 살펴보고, 수학수업 도입부 유형화 작업의 가능성을 탐색하였다. 지도안 및 수업동영상 분석 결과, 초등학교 수학과 수업 도입부의 7가지 유형이 확인되었으며, 초등학교 교사들이 운영하는 수학과 수업 도입부의 일반적인 특징과 문제점이 도출되었다.

• 한국임상보건과학회지
• /
• 제8권1호
• /
• pp.1369-1376
• /
• 2020

Purpose: This research was conducted to the comparison of flipped learning on nursing students' learning motivation, learning attitude and problem solving ability. Method: Flipped learning was a learner-centered learning method. This study was conducted on 93 nursing students and 4th grade students taking community nursing. This study was a comparative experimental study of single group. The collected data were analyzed using SPSS Win 20.0 program. Results: The results of this study showed that the instruction of the flip learning application was statistically different from that before the test in the learning motivation (t=-2.149, p=.034) and problem solving ability (t=2.210, p=.030). However, there was no statistically significant difference in learning attitude. It is thought that the flipped-learning classes was progressed with the learner-centered, and the learner was given a lot of tasks and the preparation time was required. The classes with the flip learning was effective for the motivation and problem solving ability improvement. Conclusion: Therefore, in the next study, it is necessary to design a classes that complements this part in order to positively increase the students' attitude of learning. I would like to apply flipped-learning classes in various subjects.

• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 2002년도 ITC-CSCC -2
• /
• pp.916-919
• /
• 2002

This paper introduces the problem of typeface classification of Hangul characters and proposes features for typeface classification among Serif and Sans-serif classes. Serif classes have a small decorative stroke around the beginning of vertical strokes, while Sans-serif classes have no serif. Therefore, the serif part is first segmented from the vertical strokes, and the direction of the serif is computed as the feature for Hangul typeface identification. To evaluate the performance of the proposed system, we used 3,000 characters extracted from Korean documents - 1,500 from Serif fonts, other 1,500 from Sans-serif fonts.

• 대한수학회논문집
• /
• 제23권1호
• /
• pp.29-40
• /
• 2008

Here, some classes of regular order semigroups are discussed. We shall consider that the problems of the existences of (multiplicative) inverse $^{\delta}po$-transversals for such classes of po-semigroups and obtain the following main results: (1) Giving the equivalent conditions of the existence of inverse $^{\delta}po$-transversals for regular order semigroups (2) showing the order orthodox semigroups with biggest inverses have necessarily a weakly multiplicative inverse $^{\delta}po$-transversal. (3) If the Green's relation $\cal{R}$ and $\cal{L}$ are strongly regular (see. sec.1), then any principally ordered regular semigroup (resp. ordered regular semigroup with biggest inverses) has necessarily a multiplicative inverse $^{\delta}po$-transversal. (4) Giving the structure theorem of principally ordered semigroups (resp. ordered regular semigroups with biggest inverses) on which $\cal{R}$ and $\cal{L}$ are strongly regular.

• 한국과학교육학회지
• /
• 제13권2호
• /
• pp.282-295
• /
• 1993

This study was accomplished to survey of current situation and management of science education in the special classroom(school) managed by firm. The status of management and the evalution of the scientific inquiry ability were taken on workers attending 17 Special Classes and 9 Special Schools located in Taegu City and Kyungpuk Province. As a responses, most students chose the subject "Science"as an option within their limited 8 units credits. About 88.5% of the students were female. About 78.3% of the classes/schools were conducted in the evening only. About 59.4% of teaching staffs were prevailed with female in these classes, and most of them were young, naive, and unexperienced with their major in chemistry and physics. Insufficient facilities and equipments, crowded classes, understaffed instructors, and inappropriated text materials. etc., were reasons for the students not receiving maximum benefit from these classes and schools. In order to evaluate of scientific inquiry ability, 25 items were constructed and administered to 250 students. The processes of scientific inquiry were classified into 5 categories(category I : establishing a subjects, category II : planning a experiments, category III : conducting a experiments. category IV : interpreting a result of experiments, category V : formulating generalization). As the result obtained from the achivement test analysis, the scores for all the students were significantly low, and the scores for girls were higher than those for boys. The results of test in the selected students showed that inquiry abilities in the category I, II and V were higher than those in category III and IV.

• 과학교육연구지
• /
• 제46권1호
• /
• pp.66-79
• /
• 2022

본 연구는 가상현실(VR) 콘텐츠를 활용한 과학 수업이 학생들의 과학적 태도와 공간 감각에 미치는 영향을 알아보고자 하였다. 초등학교 4, 5학년 학생들을 대상으로 학년별로 비교 반과 실험 반을 1개씩 설정하여 연구를 진행하였으며, 학년 별로 총 11차시씩 1개 단원 수업을 하였다. 수업 처치 전·후, 과학적 태도와 공간 감각에 대한 사전·사후 검사를 시행하였고, 수업이 진행되는 동안 학생들과 면담을 진행하였다. 연구 단원에 대한 수업이 모두 종료된 후 학생들의 인식 변화를 알아보고자 설문을 시행하였다. 연구 결과 가상현실(VR) 콘텐츠를 적용한 과학 수업은 학생들의 과학적 태도 및 공간 감각에 긍정적인 영향을 미치는 것으로 나타났다.