• 초등상담연구
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• 제4권1호
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• pp.99-122
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• 2005

The purpose of this study was to find out the effects of a career education program during a discretional activity class in elementary school. It established the following questions to achieve the objectives. First, does a career education program In a discretional activity class have an effect on elementary schooler's career maturity? Second, does a career education program in a discretional activity class make an influence on elementary schooler's self-concept? To settle these subjects, it assigned two classes in 5th grade of A elementary school, city of Anyang, Gyeonggi-do, experiment group and control group. It was applied the experiment group a career education program. As for measurement, it was used career maturity level test for elementary and middle schoolers' and 'the self-concept diagnostic test'. It was examined career maturity and self-concept of the groups through the pre-test post-test, applying cross-tabulation analysis to career choices pattern and t-test to career maturity level and self-concept. The results were as follows: First, students of experiment group showed meaningful differences in career choice pattern, career choice attitude, and career choosing skills compared to control group, and that presented a career education program made a positive impact on elementary schooler's career maturity. Second, it showed that there was a significant difference in self-concept, showing students of experiment group took better place. it is believed that a career education program had a potent influence on the self-concept of elementary students.

• 공학교육연구
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• 제13권5호
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• pp.55-60
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• 2010

Chemistry laboratory class was produced for senior high school freshmen with the cooperation of university staffs, high school teachers and the university students. Although the students who will take the lab class are senior high school freshmen, we decided to prepare four experiments that are simple and have highly visible reactions or transformation. That is, 1) Water purification, 2) Surface modification, 3) Briggs-Rauscher reaction, and 4) Polymer synthesis and characterization. After the safety guideline and experiment instructions by the faculty staffs, two teaching assistants (TAs) supervised each experiment. Since taking a direct part in it will provide stronger impact than only being one who is just watching the experiment, all experiments contained some process that the high school students must handle the reagents, tools or the equipment, by themselves. Although, the operation performed by the students was limited to a series of simple actions, the various unique phenomena presented by the experiments impressed the students. The lab class was fruitful not only for high school students, but also good for university students. The lab class provided good opportunity for them to improve the abilities to teach and guide someone.

• 대한화학회지
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• 제50권6호
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• pp.506-514
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• 2006

연구는 교실 밖 화학체험학습 프로그램의 적용이 중학생들의 과학 탐구 능력과 과학 관련 태도에 미치는 영향을 알아보는 것이다. 교실 밖 화학체험학습 프로그램은 ‘재미있는 교실 밖 화학, ‘신나는 과학수업'을 위해 개발된 것으로 자연환경에 부합되는 화학체험 제재를 선정하여 자연에서 실험 소재를 구하고 일상생활 속에서 경험할 수 있는 자연친화적 화학실험으로 구성되었다. 교실 밖 화학체험학습 프로그램은 전일제 계발활동을 통하여 교실과 실험실을 벗어난 자연환경에서 적용하였다. D중학교 3학년 과학반 학생들을 대상으로 실험 집단과 비교 집단으로 나누어 실험 집단은 교실 밖 화학체험학습 프로그램에 참가시키고 비교 집단은 전통적 수업방식을 따랐다. 두 집단 사이의 과학 탐구 능력과 과학 관련 태도의 변화를 비교·분석하고 교실 밖 화학체험학습 프로그램에 대한 학생들의 반응을 알아보았다. 그 결과, 교실 밖 자연친화적 화학실험은 중학생들의 과학 탐구 능력과 과학 관련 태도를 향상시켰다. 또한 학생들의 70% 이상이 교실 밖 화학체험학습 프로그램에 긍정적인 반응을 보였으며 과학에 대한 관심과 흥미, 자발적 참여도가 높아졌다.

• 한국초등과학교육학회지:초등과학교육
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• 제33권1호
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• pp.69-81
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• 2014

This study was to find out the effects of out-of-class environmental experience learning on elementary students' environmental literacy. For this study, we developed and applied environmental education program utilizing out-of-class facilities and ecological park for the 5th-grade students. The subjects of this study were the 5th grade students of an elementary school located in Si-hung city. The study was carried out for two groups, an experiment group of 29 students and control group of 29 students. The education program using out-of-class environmental experience learning was provided to the experiment group while lecture-oriented education program was provided to the control group. The questionnaire used in this study to assess the environmental literacy of the study objects consists of 41 questions under 4 domains (knowledge, emotion, skill, behavior). After observing and analyzing the effects of out-of-class environmental experience learning on students' environmental literacy, we found that the program using the out-of-class environmental experience learning posed greater impacts than lecture-oriented program. By domains, environmental literacy in 3 domains illustrated positive improvement. In particular, skill domain illustrated much more improvement in environmental literacy. But, domain of behavior didn't illustrated improvement in environmental literacy. The result of this study signified that the out-of-class environmental experience learning has positive and effective impact on the environmental literacy. And out-of-class environmental experience learning is more suitable to improve the skill domain of the environmental literacy than lecture-oriented learning. But, it is couldn't improve the domain of behavior. Therefore, in order to improve behavior domain, the program must apply with effective evaluation and home training.

• 디지털산업정보학회논문지
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• 제13권4호
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• pp.201-211
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• 2017

This study provided a rubric prior to the performance of a task in a coding class and aimed to verify its effect. As for the research contents, this study redesigned the rubric developed in the preceding studies for the purpose of this study, presented that to the students and conducted a verification of its effects on the computer efficacy and academic achievement of the students who participated in the experiment, conducting a class. For this purpose, with 41 students in an experimental group, to which the rubric was presented to conduct the class and 39 students in a control group to which the rubric was not presented to conduct the class, this study conducted a six-week class and conducted a survey on their self-efficacy in the computer and a test to measure their academic achievement before and after the experiment. As a result, there were more positive effects on both computer efficacy and academic achievement in the group to which a rubric was presented and in which a rubric evaluation was conducted than in the control group. Through the result of this study, it was noted that the evaluation method presenting more specific and more detailed standards for performance and the level of the standards would have positive impacts on the learners' learning.

• Journal of Information Technology Applications and Management
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• 제23권2호
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• pp.225-238
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• 2016

The purpose of this study is to develop cyber class contents on website and to verify the effectiveness of the program to reinforce a career education. The participants of the experiment in this study are from Namseoul University who took the cyber class 'Self management and creation of vision.' of the second semester in 2015. They took the class fifty-sixty minutes a week. The control group also includes the students who took the classes 'Theory and practice of school violence prevention' and 'Youth Education theory.' To verify the effectiveness of career education, the data processing in performing this study utilized t-test for homogeneity with the effective variable of career identity and career decision and the result was proved by using paired t-test. The result suggests that the experiment group significantly shows improvement compared with the control group in the view of career identity and career decision level. Therefore we recognize that the web based cyber course has its effect on content development and career education and we anticipate the continuous development and activation of effective cyber education on website for university students in future.

• 한국학교수학회논문집
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• 제2권1호
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• pp.43-53
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• 1999

Two (second-grade) classes of Yu-song middle school were chosen to research the effect of the visualization in the learning of probability calculation at a middle school. One class, as an experiment class, was taught the probability calculation of probability unit by the visualization learning and the other, as a controlled class, was taught it by the traditional lecture, and then through the writing tests there was a verification on the effect of right after test and the delaying test after 3 weeks to examine the learning effect of high- and low-level groups. It was difficult for the students to visualize the problems of the probability calculation, but I suggested simple models to the students and helped them to learn meaningfully. As a result of this study, there showed statistically significant difference in high-level group in the right after test.(P< .05) In the delaying test after 3 weeks, there also showed statistically significant marks only in high-level group.(P< .05) The visualization in the learning of probability calculation took more affirmative effect in the experiment class than the comparative class only in high-level group. The students in low-level group has difficulties in the visualization activities, but all the students in high-and low-level group thought the visualization was a great help to them in learning probability calculation.

• 산업공학
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• 제25권2호
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• pp.170-177
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• 2012

Process control is essential to operate the semiconductor process efficiently. This paper consider fault classification of semiconductor based cyclic signal for process control. In general, process signal usually take the different pattern depending on some different cause of fault. If faults can be classified by cause of faults, it could improve the process control through a definite and rapid diagnosis. One of the most important thing is a finding definite diagnosis in fault classification, even-though it is classified several times. This paper proposes the method that one-class classifier classify fault causes as each classes. Hotelling T2 chart, kNNDD(k-Nearest Neighbor Data Description), Distance based Novelty Detection are used to perform the one-class classifier. PCA(Principal Component Analysis) is also used to reduce the data dimension because the length of process signal is too long generally. In experiment, it generates the data based real signal patterns from semiconductor process. The objective of this experiment is to compare between the proposed method and SVM(Support Vector Machine). Most of the experiments' results show that proposed method using Distance based Novelty Detection has a good performance in classification and diagnosis problems.

• 품질경영학회지
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• 제48권4호
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• pp.553-566
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• 2020

Purpose: The purpose of this study was to design a framework for generating one-class classification algorithm based on Hyper-Rectangle(H-RTGL) in a distributed environment connected by network. Methods: At first, we devised one-class classifier based on H-RTGL which can be performed by distributed computing nodes considering model and data parallelism. Then, we also designed facilitating components for execution of distributed processing. In the end, we validate both effectiveness and efficiency of the classifier obtained from the proposed framework by a numerical experiment using data set obtained from UCI machine learning repository. Results: We designed distributed processing framework capable of one-class classification based on H-RTGL in distributed environment consisting of physically separated computing nodes. It includes components for implementation of model and data parallelism, which enables distributed generation of classifier. From a numerical experiment, we could observe that there was no significant change of classification performance assessed by statistical test and elapsed time was reduced due to application of distributed processing in dataset with considerable size. Conclusion: Based on such result, we can conclude that application of distributed processing for generating classifier can preserve classification performance and it can improve the efficiency of classification algorithms. In addition, we suggested an idea for future research directions of this paper as well as limitation of our work.

• 대한지구과학교육학회지
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• 제3권3호
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• pp.184-190
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• 2010

This study is to verify the effects of classes at a finishing stage using cartoons depicting certain science textbook units on scientific attitudes and academic achievements of students, compared to those of classes using experiment and observation oriented textbooks. Participants of this study were 56 fifth graders at B Elementary School in Busan, and cartoon textbooks were developed based on 'Unit 1. Mirror & Lens' and 'Unit 3. Temperature & Wind' from a science textbook for the 1st semester, the year 5 to conduct cartoon led lessons just before ending a class till the 10th lesson, for the period of 4 weeks. The result of this study can be summarized as follows: Firstly, scientific attitudes improved better from the cartoon based lesson of a final stage than from the experiment and observation method, and especially more effective in lower groups among all other academic achievement levels as well as in male students. Secondly, academic achievements scored higher when cartoons were used in lessons than when the experiment and observation type was used, with higher groups of academic achievement levels working better, despite no significant gap existing between two genders. Thirdly, the memory transfer and sustenance of lessons were more effective in finishing class stage with cartoon studies than with experiment and observation one, and among all levels and both sexes, higher academic groups and male pupils exceeded. Fourthly, when questioned about their opinions on a cartoon led lesson for a final stage, 65% of those participants responded positively, while higher groups preferred more than lower groups. responded positively, while higher groups preferred more than lower groups.