• Journal of the Korean Society of Earth Science Education
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• v.13 no.1
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• pp.74-89
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• 2020

The purpose of this study was to develop a concept test tool for seasonal change with reliability and validity, and to objectively observe and analyze sub-concepts and misconceptions related to the concept of seasonal change to explain the relationship between variables. The development process of the conceptual change concept inspection tool consisted of the development of the inspection tool development plan, the development of the inspection tool draft, the modification of the preliminary inspection and inspection tools, the development of the final inspection tool, and the implementation of this inspection. The developed test tool can be used to provide students with appropriate learning and help by examining students' degree of seasonal change concept formation and analyzing the cause of the difficulty in concept formation. As a result of regression analysis of 198 students in 6th grade using the developed test tool, it was found that the understanding of pre-learning concept and correction of misconception had a statistically significant effect on the concept learned in the seasonal change unit, and misconception had greater effect. Correction of misconceptions had a significant effect on students above the average score among the two sections created and cut based on the average score, and on the students below the average score, the understanding of pre-learning concept had a significant effect.

• Journal of The Korean Association For Science Education
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• v.22 no.3
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• pp.586-594
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• 2002

In this study, the relationships among cognitive conflict, situational interest, and conceptual change in studying boiling point were investigated. The differences in the relationships by gender were also investigate. Students of 7th grade(N=370) participated in this study. First, a preconception test was administered to choose students who possessed the misconception studied. After presenting anomalous data, test of response to anomalous data and state interest test were administered. After the instruction with a CAI program, a conception test was administered immediately. The conception test was administered again as a retention test four weeks later. The scores of both cognitive conflicts and state interest test were found to be significantly correlated with the scores of the conception test and the retention test. The results of multiple regression analysis indicated that state interest was significantly more important than cognitive conflict in prediction the degrees of conceptual change and retention of conception. For male students, state interest was the only significant predictor of conceptual change and retention of conception. In contrast, cognitive conflict was the only significant predictor for female students.

• 한국지구과학회:학술대회논문집
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• 2005.02a
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• pp.213-222
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• 2005

본 연구에서는 고등학생들의 창의성을 신장시키고자 렌줄리의 3단계 학습모형에 적용하여 전향력 탐구활동 프로그램을 개발 하였고, 현장에 적용 후 그 효과를 알아보고자 하였다. 실험집단에는 창의성 신장을 위한 전향력 탐구활동 프로그램을 적용하였고, 통제집단에는 전통적인 교수 학습을 적용하였다. 창의성의 신장 정도와 전향력 개념의 이해 정도를 측정하고자 사전 사후 검사로 창의성은 토렌스의 창의성 검사(TTCT)로, 전향력 개념은 성취도 검사로 알아보았다. 그 결과 실험집단이 전향력 개념 성취도 검사 결과 유의미한 차이가 있는 것으로 나타나고, 창의성 검사(TTCT)에서도 실험집단의 사전 검사보다 사후 검사에서 유의미한 차이가 있는 것으로 나타났다. 이는 학생들이 본 수업 프로그램의 과정을 통해 평소 어렵다고 생각했던 전향력 개념을 쉽게 이해할 수 있었기 때문이다. 이러한 연구 결과는 전향력 탐구 활동 프로그램은 고등학생들의 창의성을 신장시키고 전향력 개념에 대한 이해도를 높일 수 있었다고 볼 수 있다.

• Journal of the Korean Chemical Society
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• v.46 no.4
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• pp.377-384
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• 2002

In this study, the effect of cooperative computer-assisted instruction upon students' conceptual under-standing,application ability, and learning motivation were investigated by a previous achievement level. The treatment and the control groups (2 classes) were selected from a middle school in Seoul, and taught about the motion of molecule for 5 class periods. Prior to the instructions, a learning motivation test was administered and used as covariate. The scores of a previous achievement test were also used as covariate. The scores of the mid-term science examination were used as blocking variable. After the instructions, the conceptions test, the application test, and the learning motivation test were administered. Two-way ANCOVA results revealed that there were no significant differences in the scores of the con-ceptions test and the application test. However, the scores of the treatment group were found to be significantly higher than those of the control group in the learning motivation test.

• Journal of the Korean earth science society
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• v.22 no.4
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• pp.268-277
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• 2001

This study was to investigate the preconception and phases of children's conceptual change about season through an instruction on the concept. Participants in the study were seventy-eight fifth graders in two classrooms of an elementary school located in Incheon city. Children's preconception was examined using a questionnaire, consisted of a drawing and literal explanation. The questionnaire also was used at the midterm-test, post-test, and one-week delayed-test. The results shows several findings as follows: some children (a) change their synthetic conceptions to form another synthetic conceptions through the instruction; (b) exhibit that their conceptions are unstable; and (c) are mainly influenced by distance and heating effect on the seasonal spatial distribution between the Earth and the Sun, and by the Earth's rotation on the seasonal change of constellations in acquiring the scientific concepts.

• Korean Journal of Cognitive Science
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• v.9 no.1
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• pp.47-60
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• 1998

The study was designed to investigate implicit and explicit memory effec representations of bilinguals. Hierarchical model of bilingual information processing word naming and translation tasks in the context of semantically categorized or rar Experiments 1 and 2, bilinguals first viewed stimulus words and performed naming or tr then implicit and explicit memory tasks. In experiment I, word recognition times(exp were significantly faster for semantic category condition than random category condi naming task and lexical decision taskOmplicit memory task)showed no difference in e experiment 2, naming task and exlicit memory task showed categorization effect but fOWE a and implcit memory task showed no categorization effect. These findings support the which posits that memory representations of bilinguals are composed of two independer a and one common conceptual store.

• Journal of the Korean Society for Nondestructive Testing
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• v.24 no.2
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• pp.171-179
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• 2004

The design concepts of in-service inspection and maintenance are very important for the reactor system design of the nuclear power plant. The strategy of in-service inspection and maintenance should be reflected in the mechanical system design for the verification of the operability of liquid metal reactor KALIMER. In this paper the fundamental approaches of the in-service inspection and maintenance of the KALIMER are established to ensure the safety and reliability of the reactor system. The general method and requirement of the in-service inspection and maintenance for the reactor system and components are proposed and described to satisfy the intents of the ASME Section XI Division 3 and the design characteristics of KALIMER.

• Korean Medical Education Review
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• v.4 no.1
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• pp.1-15
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• 2002

본 연구의 목적은 의학교육입문검사의 개념의 틀을 형성하는데 있다. 본 연구의 목적을 구체적으로 살펴보면 다음과 같다. 첫째, 본 연구는 의학교육입문검사라는 의학 적성측정도구를 개념화 하기위하여 지금까지의 일반적인 적성 검사와는 달리 의학적 인지능력 정의적 심리 구인과 의학관련 배경지식과 사고라는 의학적 적성 스펙트럼을 만들고자 한다. 한국 상황에서 적용가능하고 21세기에 요구하는 의학교육입문검사를 개념화하여 이론적 틀을 만들고자 했다. 둘째, 이 연구는 의학교육입문검사의 개념의 틀 위에서 각 개념을 양화를 통한 측정도구의 가능성을 열었다. 셋째, 본 연구는 본 검사를 통하여 의학대학과 의학전문대학원 지원 하고자하는 사람들에게 다양한 개인의 정보를 부여할 뿐만 아니라, 대학과 대학원에서의 학생 선발의 타당성을 높일 수 있는 실제적 자료를 제공해 입시사정에 유용한 자료를 얻을 수 있다는 의미에서 실제적 가치를 갖고 있다.

• Journal of The Korean Association For Science Education
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• v.27 no.5
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• pp.412-420
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• 2007

In this study, we investigated the influences of the epistemological beliefs on the conceptual change processes in respects of cognitive conflict, situational interest, attention and state learning strategies. After administering epistemological belief questionnaire as a pretest, 218 seventh graders possessing misconceptions about density were selected from the results of a preconception test. The questionnaires of responses to a discrepant event and situational interest were administered. After learning with a CAI program, attention test, state learning strategy test and conception test were also administered as post-tests. Analysis of the results revealed that fixed ability, quick learning and certain knowledge, which are epistemological factors, were highly related, but only certain knowledge exerted a direct effect on conceptual understanding negatively. It also had positive effects on attention directly as well as via situational interest, and thus increased conceptual understanding, even if the effects were relatively smaller than the direct effect. However, epistemological beliefs had little influence on conceptual understanding through cognitive conflict and/or state learning strategies.

• Journal of The Korean Association For Science Education
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• v.33 no.2
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• pp.229-248
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• 2013

The purpose of this study is to develop sequential concept tests (ConcepTest) for teachers' conceptual change on the straight propagation of light through in-service training of science teachers by peer instruction. We revised the ConcepTests for attaining the goal concept by implementing similar training courses for teachers three times and analyzing the results using both Hake gain and verbal protocol. The final form helped most teachers to reach the goal concept. While teachers are solving a given concept problem test, they had shown not only significant cognitive conflict to select one among candidate answers, but also used the concept obtained through the previous problem. The sequential ConcepTests developed in this study can be useful for training elementary and secondary teachers or pre-service teacher education.