• 한국학교수학회논문집
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• 제16권1호
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• pp.31-61
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• 2013

본 연구의 목적은 학습능력이 다소 처지는 학생들도 구성주의를 바탕으로 한 학습자 중심 수업을 받았을 때 이들도 또한 스스로 지식을 구성할 수 있을 것이라는 구성주의자들의 가정을 확인을 하는데 있다. 이런 목적을 달성하기 위해서, 연구자들은 구성주의를 바탕으로 한 학습자 중심 수업과 객관적 인식론을 바탕으로 한 교사 중심 수업이 학생들의 추론 능력과 학업성취도에 미치는 효과를 비교하였다. 이를 알아보기 각 집단은 각 실험처치를 통해 곱셈을 학습하였다. 본 연구에서 얻은 결과로부터 다음과 같은 몇가지 결론을 얻을 수 있었다. 첫 번째, 구성주의를 바탕으로 한 학습자 중심 수업은 학습자들의 추론 능력에 통계적으로 유의미한 영향을 미쳤다. 두 번째, 학습자 중심 수업은 학습자들의 연역적 추론 능력에 다소 긍정적인 영향을 미쳤다. 세 번째, 다소 학습능력이 처지는 학생들을 대상으로 실시한 학습자 중심 수업은 교사중심 수업보다 실험처치 중 학습하지 않은 수학적 지식의 개념 및 원리 이해에 긍정적인 영향을 미쳤다.

• 수산해양교육연구
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• 제28권1호
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• pp.235-247
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• 2016

The purpose of this study is to analyze elementary school students' pre-concept of electromagnet and to investigate effects of instruction through social interactions on conceptual changes of the electromagnet. For the purpose, 108 elementary school students of 3 classes were selected from the 6th grade. They were divided into the control group I, control group II and experimental group. The control group I was treated through traditional instruction on the basis of text book. The control group II was instructed with a modified version of the textbook to help them better understand the concept of electromagnet. The experimental group was treated through instruction on the basis of the above modified version of the text book and social interactions. Conceptual changes on electromagnet before and after the treatment were quantitatively and qualitatively analyzed using the identical test. The students' styles of social interaction were qualitatively analyzed with tape records of their discussions and work sheets. Effects of instruction through social interactions based on radical constructivism on the 6th-grade elementary school students' concept of electromagnet were examined here. The results were described as follows. Firstly, after the treatment, the experimental group was statistically significantly higher in mean values of conceptual understanding and academic achievement than both the control group I and II. Secondly, styles of social interaction in the three sub-groups of the experimental group were qualitatively analyzed, among the threes, high- and medium-level sub-groups were higher in the frequency of linguistic social interaction than the low-level sub-group. Those students who were excellent in communication skills actively participated in linguistic social interactions. In discussions among the three sub-groups, students of the high- and medium-level sub-groups provided explanations or information while those of the other sub-group sometimes were passive by just listening, but in large actively participated in communication. In conclusion, instruction through social interactions was effectively changed in the 6th-grade elementary school students' concept of electromagnet.

• 전자공학회논문지C
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• 제34C권9호
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• pp.10-21
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• 1997

In this paper, we propose multiple instruction issuable multi-streaming as a processor architecture for 3D graphics processor. Multistreaming can eliminate inteferences within concurrently executing instructions inthe pipelined processor to allow enough parallelism for parallel processing. Through cycle level simulation study, we show that the proposed architecture outperforms a conventional RISC processor, MIPS R3000 by three times with reasonable resource overheads. Multiple instruction issuable multistreaming processor will be a bood architecture for instruction processor when a large number of threads are guaranteed.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 1999년도 하계종합학술대회 논문집
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• pp.365-368
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• 1999

In this paper, we investigate the effect of adopting branch-penalty compensation schemes on the power performance of TLBs(Translation Look-aside Buffers) and instruction caches. We found that the double-buffer branch-penalty compensation scheme can reduce the power consumption of the TLBs and the instruction caches considered by up to 14-21.3%. The power consumption is estimated through simulation at the architectural level, using the Kamble/Ghose method

• Journal of Community Nutrition
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• 제3권1호
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• pp.36-39
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• 2001

We developed a junior high school-level computer assisted instruction CAI lesson on obesity and weight control and compared its effectiveness with the lecture/discussion method. we collected pretest and posttest data on knowledge an dinterest in obesity and weight control form 450 students in junior high school We randomly assigned three groups the CAI lesson group a comparable lecture/discussion lesson group and control group There were significant difference among these three groups in posttest knowledge scores and in interest in weight control CAI student's responses to learning by computer were significantly positive.

• 한국지구과학회지
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• 제25권7호
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• pp.565-575
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• 2004

이 연구에서는 과학사를 활용한 교수-학습 자료를 개발하고 교육 현장에 적용하여 과학 학업 성취도와 과학과 관련된 태도에 미치는 효과를 중학생의 성취수준에 따라 조사하였다. 여중생 3학년 4개 학급을 대상으로 실험 집단에서 대하여 과학사 활용 수업, 통제 집단에 대하여 전통적인 수업을 실시하였다. 과학사 활용 수업에서는 필수 학습요소와 관련된 과학사를 다양한 방법으로 학생들에게 소개하여, 학습자의 흥미와 STS인식을 유도하였다. 과학사 활용 수업은 전통적인 수업에 비하여 학생들의 과학 학업 성취도와 태도 향상에 효과적인 것으로 나타났다. 이러한 과학사 활용수업은 과학 학업 성취도에서는 상위권에게 유의미한 효과가 나타났으며, 과학과 관련된 태도에서는 상, 중위권에서 긍정적인 효과를 보였다. 이와 관련하여 학습자의 수준을 고려한 교수-학습 자료와 수업 모형 개발은 과학사 활용 수업에 도움을 줄 수 있다.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제20권3호
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• pp.193-204
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• 2017

본 연구는 문제 만들기 활동과 수학 수업을 통합할 수 있는 실제적 방안을 모색하고자 수행되었다. 이를 위해 일상적으로 이루어지는 수학 수업의 정리 단계에서 문제 만들기 활동을 실행하고, 학생들이 만든 문제를 체계적인 절차와 준거를 사용해 분석하였다. 먼저 학생들이 만든 540문제 중 수학적으로 해결 가능한 문제는 81%, 오류가 있는 문제는 18%로 나타났다. 이어서 수학적으로 해결 가능한 문제를 복잡성 수준에 따라 분석하였는데, 상-수준 13%, 중-수준 30%, 하-수준 57%였다. 마지막으로 오류 유형으로 분류된 비-수학적 문제, 단순한 진술, 해결 불가능 문제는 학생들의 성취 수준과 학습 내용에 따라 다양하게 분포되어 있었다. 본 연구는 학생들이 생성한 문제를 분석하기 위한 체계적인 절차와 준거를 제시하고 수학 수업과 문제 만들기 활동을 통합할 수 있는 방향을 제시했다는 점에서 의의를 찾을 수 있다.

• 한국초등과학교육학회지:초등과학교육
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• 제17권2호
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• pp.1-10
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• 1998

The purpose of this study was to evaluate the effects of constructivist instruction on science inquiry skills and science-related attitudes, and to investigate the students' responses to the lesson using constructivist instruction. In this study, 108 students of sixth graders from four classes were intentionally selected from two elementary schools located in Gyungsan city, Kyungsangbukdo. Two classes of 54 students were used by the constructivist teaching program and the other two classes were handled by the traditional teaching program. Two teachers who have twenty years' careers guided the program prepared by researcher to the students and this examination was conducted for 8 weeks (total 20 class hours). In pretest and posttest, both groups were tested in the science inquiry skills and science-related attitudes. An interview and questionnaire for the students analyzed the responses about the constructivist instruction. The major results of this study are as follows: First, in science inquiry skills test, there was no statistical significance between the score of the experimental group and that of the comparative group(p>.05). The ability of formulating problem in the experimental group was significantly higher than that in the comparative group at 0.05 level. In pretest and posttest, the experimental group was statistically significant on classifying, formulating problem, interpreting data, while the comparative group was not significant on those. Second, we can find that the experimental group has more positive effect on forming the desirable science-related attitudes than the comparative group(p<.05). Especially, experimental group is significantly higher the attitudes about the science curriculum than the comparative group at 0.05 level Third, constructivist instruction has more affirmative tendency of the students' learning activity. Constructivist instruction generated much interest and curiosity about science for the students, and this method prompted students' expression and discussion.

• 한국초등과학교육학회지:초등과학교육
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• 제25권4호
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• pp.396-406
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• 2006

In this study, elementary school students' science learning characteristics together with the levels of inquiry requirement in elementary school science experiment instruction were investigated in terms of the affective domain. We divided seventy-three students of the fifth ade into two groups according to the levels of inquiry requirement. After each instruction had been implemented, the characteristics of the students' learning in terms of the affective domain were compared and analyzed within the context of the levels of inquiry requirement. There were no significant differences between Level 1(LL) and Level 2(HL) groups in terms of the affective characteristics. These results may be caused by the burden imposed by the difficulty in thinking through and setting up the experimental methods. However, the HL group students' levels of interest in science experiments was higher than that of the LL group. In conclusion, the HL instruction contributed little to the improvement of affective characteristics. Some possible reasons might be that students felt difficulties with the somewhat unfamiliar instructions which required them to design and perform experiments. Higher levels of interest in science experiments amongst HL students' implies that well-organized and continuous exercises involving the design and performance of experiments could improve students' scientific affective characteristics.

• 대한수학교육학회지:수학교육학연구
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• 제12권3호
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• pp.313-329
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• 2002

The importance of professor's outline in a feedback instruction was examined through various documents and the way in which the evaluation was fulfilled in Korean educational environment and its reflection upon the evaluation result were investigated by means of research. Based upon the survey results in connection with the progress and basis of teachers' on the spot feedback mathematics instruction in schools, it was found that most of teachers who engaged in feedback mathematics instruction were going over the most frequently missed problems. I proposed that we should bring up the point at issue and grasp its tendency of a class and entire group's results by means of a relative comparative analysis method, and thereupon establish a fixed category and choose substantial feedback scholarship according to that category. From this basis, the sub-sequent research topics include the substantial feedback effects of the selected problems that should be given priority, a group analysed and classified by means of comparison of tendency as well as feedback outline depended on students' characteristic, and the determining factors of tendency(a condition of professors, a level of students, geographical difference(s), and gender difference(s), etc...).