• 대한수학교육학회지:학교수학
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• 제2권1호
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• pp.111-144
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• 2000

The purpose of this study is to develop instruction sequence and teaching units for secondary school geometry using dynamic computer software like CabriII, GSP, Wingeom, Poly. For this purpose, literature was reviewed on various issues of geometry education and geometry curriculum using dynamic software. By the literature review, instructional sequence for teaching geometry in middle schools was designed. And, based on the newly developed instructional sequence, one sample teaching unit was developed. The basic principles for the development were to connect intuition geometry and formal geometry, and to emphasize students' investigative experience. Finally, experiment to check out teachers' response to the newly developed material was conducted by using questionnaire.

• 대한수학교육학회지:학교수학
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• 제18권1호
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• pp.175-191
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• 2016

본 연구는 2009 개정 교과서에서 제시하고 있는 자연수 덧셈과 뺄셈의 지도 순서를 비판적으로 검토한 것이다. 2009 개정 교과서에서는 제4차 교육과정기부터 2007 개정 교육과정기까지의 교과서에서 제시하고 있는 자연수 덧셈과 뺄셈의 지도 순서와는 다르게, 받아올림이 없는 두 자리 수의 덧셈과 받아내림이 없는 두 자리 수의 뺄셈의 지도순서를 상당히 앞으로 당겼고, 10을 가르기와 모으기는 상대적으로 뒤로 미뤘다. 이에 본 연구에서는 이러한 덧셈과 뺄셈 지도 순서의 변화가 어떠한 근거에 의한 것인지 찾아보고자 하였다. 여러 문헌과 외국 교과서에서 제시하고 있는 덧셈과 뺄셈 지도 순서를 살펴본 결과 받아올림이나 받아내림이 없는 (몇십 몇)${\pm}$(몇십 몇)을 (몇)+(몇)=(십 몇)과 (십 몇)-(몇)=(몇)에 앞서 지도하는 경우는 찾기 어려웠다. 오히려 20 이하의 덧셈과 뺄셈을 강조하며 받아올림과 받아내림의 학습에 앞서 지도하는 경우가 많았다. 이러한 결과는 차기 교과서 집필에서 덧셈과 뺄셈 단원 및 차시 내용을 배열함에 있어, 세심한 고려가 필요함을 시사한다.

• 대한수학교육학회지:학교수학
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• 제2권1호
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• pp.183-202
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• 2000

The purpose of this study is to restructure the 10th grade mathematics curriculum for teaching the function area under the computer environment using ‘Mathview’, which is a computer algebra system designed for exploring algebra dynamically. The instructional sequence of the function area was redesigned to highlight the functions and properties of the computer software. And, based on the newly designed sequence, this study develops the sample ‘teaching unit’ using Mathview. The basic principle of the materials is to encourage students to investigate mathematics by manipulate various experimental tasks by themselves or through group study. And, the draft of the sequence and teaching unit was reviewed by some mathematics teachers and revised through the feedback.

• 한국학교수학회논문집
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• 제8권3호
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• pp.357-366
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• 2005

이 연구는 교육과정에 명시적으로 표기하지 않은 개념형성과정을 밝혀 구조망으로 나타내고, 여기에서 교사가 지도할 내용의 개열을 구성하는데 그 목적을 둔다. 이를 위해 연구진은 사인함수의 그래프에 대한 개념형성과정을 수업모델로 만들어 교실에서 수업을 실시하고 수업 중학생들의 모둠활동을 관찰했다. 또, 수업 후에는 인터뷰를 통해 개념형성과정에서 보인 상황 찾기(인식), 사용된 사고전략, 효과적인 자료 및 학습도구 등 학생들의 반응을 면밀히 기록했다. 이들 결과는 5인의 전문 집단에 의하여 분석되어 내용구조망(network)과 그 지도계열을 구성할 수 있었다. 이 연구는 학교현장에서 소홀이 되고 있는 개념교육에 구체적인 방법을 제시하고 있다.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2002년도 학술대회논문집
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• pp.363-368
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• 2002

Performance-based course design on the job of receiving substation installations is presented to achieve a work based curriculum development. It includes a job analysis method called ISD(Instructional Systems Design & Development) and DACUM(Developing a Curriculum) which is designed to accept various requirements of industrial fields. It is provided with course profile, key contents, terminal learning objectives, intermediate learning objectives, instruction strategy, instruction sequence, case study, action learning and lesson plan.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2001년도 학술대회논문집
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• pp.151-156
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• 2001

Performance-based course design on the job of receiving substation installations is presented to achieve a work based curriculum development. It includes a job analysis method called ISD(Instructional Systems Design & Development) and DACUM(Developing a Curriculum) which is designed to accept various requirements of industrial fields. It is provided with course profile, key contents, terminal learning objectives, intermediate learning objectives, instruction strategy, instruction sequence, case study, action learning and lesson plan.

• 한국과학교육학회지
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• 제15권2호
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• pp.233-240
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• 1995

The purpose of the study is to certify the validity and effectiveness of the learning hierarchy and to define the effective teaching order in life continuity. To achieve this purpose, two experimental groups which were instructed varying the sequence of the instructional units. Teaching order based on the learning hierarchy was given to experimental group and descriptive order of current text was given to control group. The findings of the study are as follows: 1. Learning Hierarchy before learning had differ with order of the textbook, but hierarchy of both group has showed similar to the sequence of textbook, after learning. 2. The effect of learning hierarchy represented no significant different between control and experimental group.

• 영어어문교육
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• 제11권4호
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• pp.49-77
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• 2005

This paper has an aim to examine English native speakers' requests, and offer an instructional technique to develop EFL students' pragmatic ability. For this purpose, English-speaking native speakers' requests were collected in six different face-threatening situations, and analyzed in three ways: directness levels, internal modification and sequence of request. The analysis of requests showed that they were realized mainly through conventionally indirect level in most situations, were internally modified frequently through the use of downgraders, and had a certain sequence of utterances realizing a request. On the basis of these findings, two kinds of interactional activities (Jigsaw and pair work) were provided as sample activities to promote EFL students' pragmatic knowledge about the appropriate ways of making requests given the fact that pragmatic errors can be more serious and more problematic than grammatical errors in social interaction.

• 한국과학교육학회지
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• 제12권3호
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• pp.61-76
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• 1992

The purpose of this study was to develop the instructional model and teaching material to change the middle school students'conceptions of electric current into the scientific ones and to investigate the effects of the model in actual classrooms. We identified the students' ideas and their misunderstanding about the concept of eIectic current through reviewing the literatures and our in this study. Based on the above results, we developed the instructional model and designed the teaching sequence and prepare the learning materials about the unit of the electric current in middle school Our instructional model was based on 'learning cycle' developed by Lawson, but the new stage called "exploration through qualitative questions" to elicit the students' own conceptions was inserted to it. To investigate the effects or the new teaching model, the pre- and post-test using the POE type were administered to experimental group(52 students) taught with learning cycles and control group(52 students) taught with traditional styles. The results are as follows; 1) The rates of correct. predictions was varying according to the kinds of problems. And the rates of the correct. reasons of their predictions were lower than those of the predictions. 2) The mean scores of the post-test of both groups were significantly higher than those of the pre-test. We could not find statistically significant difference in theme an score between experimental group and control group after implementation of the model. But the experimental group gained higher scores than those of the control group on two problem. Therefore, although we cannot show the prominent effects of our teaching model based on learning cycles, there are some effects of our model on changing the middle school students' conceptions of electric current.

• 한국정보시스템학회지:정보시스템연구
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• 제11권1호
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• pp.51-74
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• 2002

The purpose of this study is to empirically investigate critical success factors for effective implementation of web-based distance learning system. First of all, four critical success factors are theoretically derived from reviewing previous research. They are: (1) learner-related factor including the variables such as teaming ability, learning attitude, and attending motivation, (2) environmental factor including the variables of physical and mental support for learners, (3) instructional design factor represented by one variable, the degree of appropriateness of learning contents, and (4) the factor concerning the level of self-directed learning readiness embracing the variables such as curiosity for learning, openness towards challenge of learning and affection for learning. Subsequently, the relationships between these four critical success factors and the degree of learning satisfaction are empirically investigated. The data for empirical analysis of the research are collected from 1,020 respondents who have already passed the web-based distance learning courses which have been implemented in Information and Communication Officials Training Institute. Out of 1,020 responded questionnaires, 875 data were available for statistical analyses. The main results of this study are as follows. Firstly, the most important factor for successful implementation of the web-based distance learning system is shown to be the instructional design factor, and in the next place, the self-directed learning readiness factor, the environmental factor and the learner-related one in sequence. Secondly, additional analysis of the variables included in the instructional design factor shows that availability of practical information and knowledge is the most influencing variable, and next, interesting composition of contents, reasonable learning amount, optimal level of instruction, and understandable explanation are significantly important in the descending order. Lastly, among learning motivators, strong intention of acquiring business knowledges and skills is found to be the most important satisfier in the web-based distance learning. The theoretical contribution of this study is to derive a comprehensive model of critical success factors for implementing the web-based distance learning system. And, the practical implication of this study is to propose efficient and effective guidelines for developing and operating the web-based distance learning system in the various kinds of organizations.