• School Mathematics
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• v.7 no.2
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• pp.139-168
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• 2005

The purpose of this study is to investigate children's informal knowledge of the fractional multiplication and to develop a teaching material connecting the informal and the formal knowledge. Six lessons of the pre-teaching material are developed based on literature reviews and administered to the 7 students of the 4th grade in an elementary school. It is shown in these teaching experiments that children's informal knowledge of the fractional multiplication are the direct modeling of using diagram, mathematical thought by informal language, and the representation with operational expression. Further, teaching and learning methods of formalizing children's informal knowledge are obtained as follows. First, the informal knowledge of the repeated sum of the same numbers might be used in (fractional number)$\times$((natural number) and the repeated sum could be expressed simply as in the multiplication of the natural numbers. Second, the semantic meaning of multiplication operator should be understood in (natural number)$\times$((fractional number). Third, the repartitioned units by multiplier have to be recognized as a new units in (unit fractional number)$\times$((unit fractional number). Fourth, the partitioned units should be reconceptualized and the case of disjoint between the denominator in multiplier and the numerator in multiplicand have to be formalized first in (proper fractional number)$\times$(proper fractional number). The above teaching and learning methods are melted in the teaching meterial which is made with corrections and revisions of the pre-teaching meterial.

• Journal of The Korean Association For Science Education
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• v.19 no.1
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• pp.29-40
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• 1999

The purpose of the present study was to test hypothesis that, because it uses tri-dimensional sensory pathway which have been showed a higher rate of neural activities than uni- or bi-dimensional's, lab-activity-based instruction is more effective teaching strategy in learning science than verbal-based instruction. In the present study, manipulative teaching strategy that uses visual, somatosensory and auditory information pathway was regarded as a mode of tri-dimensional sensory inputs. In addition, verbal teaching strategy that uses mainly auditory and a little visual information pathway was used as a mode of bi-dimensional sensory inputs. Fifty-six students who failed to successfully solve two proportional reasoning tasks (i.e., pouring water tasks) were sampled for this research from a junior high school. The subjects were randomly divided into a manipulative or a verbal teaching group, and given manipulative or verbal tutoring on the use of proportional reasoning strategies and a test of proportional reasoning during instruction. The results showed that manipulative group's performance on the test of proportional reasoning during instruction showed significantly higher performance than verbal group's (t=2.45, p<0.02). The present study also discussed some educational implications of the results.

• Journal of The Korean Association For Science Education
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• v.37 no.5
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• pp.847-857
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• 2017

This study examined the effect of the Collaborative Problem-Solving for Character Competence (CoProC) instruction model within the context of secondary science education. The participants of this study were comprised of 143 Korean students, each of whom was in the 10th grade spread across four class cohorts. These cohorts were further divided into an experimental group (comprised of 73 students from two different classes), which received the CoProC program; and a control group (70 students from two other classes), which did not. In order to assess the effect of CoProC instruction model upon participants' character competence, we designed and administered a Character Competence Test for participants. The CoProC instruction model consists of 3 fundamental steps: Preparation, Problem-solving, and Evaluation. Key character competence targeted in the CoProC program include caring, collaboration, communication, responsibility, respect, honesty, self-regulation, and the development of positive self-image. Thus, these same qualities were targeted and analyzed in the Character Competence Test, which was administered before and after the CoProC activities. The results show a significant increase in the experimental group's competency for caring, collaboration, responsibility, respect, and self-regulation when compared to the control group. Based on these results, we have found that CoProC instruction model to be an effective teaching intervention toward cultivating character competence in a secondary science education setting.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 2002.06a
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• pp.229-238
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• 2002

본 연구는 기존의 대면학습체계에서 가상교육체제로 변화되고 있는 새로운 교육 패러다임에 대해 교수자와 학습자가 점진적으로 교육환경 변화에 적응할 수 있도록 유도하기 위한 대안적인 방안으로써 인터넷을 기반 대면학습 지원 시스템 제안 한다. 가상교육체제는 고도의 정보 인프라와 학습자 및 교수자 모두에게 일정수준 이상의 정보기술이 요구되고, 실험실습, 실기교육 등과 같은 참여교육에 제한이 따르며, 교육체제에서 기본적으로 수반되는 비정형적 교수-학습 활동들을 수용하는데 교육컨텐츠 및 운영 시스템에 대한 정교한 설계 및 준비가 요구된다. 따라서 본 연구는 가상교육체제의 문제점과 기존 면대면 학습체제의 보완을 위한 방안으로써 교육체제에서 수반되는 비정형적 교수-학습 활동 요소들을 정보시스템에서 운영이 가능한 정형화 프로그린 및 프로세스로 전환하여 대처할 수 있는 방안을 제시하였다. 또한 본 연구에서 제안한 대면학습 지원시스템은 교수 및 학습 활동에 요구되는 전반적인 자료들을 교수-학습 지원 프로그램 및 프로세스에서 체계적으로 관리 및 운영할 수 있도록 모듈화 하는 방안을 제시하였다.

• Journal of the Korea Convergence Society
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• v.12 no.2
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• pp.121-127
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• 2021

This study is to propose a communication strengthening teaching model using action learning for Spanish learners, and to verify its effectiveness through a case study of Spanish lessons. This study was conducted under the same conditions by dividing 91 students from September 1 to December 20, 2019 into experiment and control classes. As a result of the experiment, both classes improved their writing ability to some extent, but the learners in the experimental class applying action learning showed more meaningful results in terms of the content, expressions, fluency of the text, and the affective domain test also showed a significant difference. The development of this teaching model, which is necessary for learner-centered convergence activities, is expected to be of academic significance as it can be used for other foreign language class activities as well as improving Spanish communication.

• Journal of the Korean association of regional geographers
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• v.11 no.4
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• pp.523-535
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• 2005

This study is aimed at researching the applicability of teaching-learning models in highschool geography class by designing the models on the basis of geographical experience the learners go through everyday life. The procedures and results of the application of the models are as followed. First, the systematization of the teaching concepts should be preceded to internalize the learners cognitive development, that is, to systemize cognitive structure. The concrete learning points of geographical concepts from the units about Migration and Population Changes are systemized with 'migration' as a higher concept, 'moving type' as basic concept, 'moving factors' as the lower concept. Everyday geographical experiences the students can go through are surveyed. Second, as preparation for the geography class, hand-outs about family-moving history and the change of the family number were used as basic material for real class teaching activity, showing the learners' general concepts are very effective as basic units which can be easily understood and accessed to. Third, with the experimental class, the geography class should secure the flexibility on the teaching-learning process. The result of applying the newly developed teaching-learning model to actual geography classes was that experimental group had higher achievement rate than the compared group with general teaching-learning model applied to. The result of analyzing students' response of the new teaching-learning model was that the students were interested and satisfied emphatically and they showed positive response in regard to practical use of the contents. Here, it is noticeable that the new teaching-learning model causes the students to be interested. But it's also found that there's no big difference in improving the students' inquisitive mind.

• Journal of Engineering Education Research
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• v.6 no.2
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• pp.5-14
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• 2003

In this paper, we developed an efficient virtual experiment kit with creative and interactive multimedia contents, which can be used to enhance the quality of education in the area of digital logic circuits. Since our virtual experiment kit is implemented to describe the on-campus laboratory, the learners can obtain similar experimental data through it. Also, our web-based virtual experiment kit is designed to enhance the efficiency of both the learners and the educators. The learners will be able to achieve high learning standard and the educators save time and labor. The virtual experiment is performed according to the following procedure: (1) Circuit Composition on the Bread Board (2) Applying Input Voltage (3) Output Measurements (4) Checkout of Experiment Results. Furthermore, the circuit composition on the bread board and its corresponding online schematic diagram are displayed together on the virtual experiment kit for the learner's convenience. Finally, we have obtained several affirmative effects such as reducing the total experimental hours and the damage rate for experimental equipments and increasing learning efficiencies as well as faculty productivity.

• The Journal of Korean Association of Computer Education
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• v.9 no.6
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• pp.1-10
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• 2006

This study introduced a peer tutoring in computer education for the purpose of overcoming the individual differences. Two research problems were investigated. The first is to confirm the effect of the peer tutoring on academic achievement, and the second is to compare the effects of the peer tutoring under the two different pair composition: friendship-based vs ability-based. All of the students of three classrooms in a middle school were included in this experimental research. The results showed no significant difference between the peer tutoring and the teacher instruction. However, the peer tutored group showed higher achievements than the other group, so we could confirm the positive effect of the peer tutoring. At the beginning, the friendship-based pair group showed a significantly higher achievement than the ability-based pair group, but as times go on the friendship effect was gradually diminished.

• The Journal of Korean Association of Computer Education
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• v.15 no.1
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• pp.13-21
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• 2012

In this paper I present the teaching strategies and methods of programming education based on the learning style which teachers can apply it to their class on condition that learning style can classify their students' preferences about learning strategies and methods. Recent related researches that prove the differences about student's specific abilities based on their learning styles could never help teachers design and do their teaching of programming in the class. Therefore this study about teaching strategies and methods of programming education will be necessarily. I propose the teaching strategies and methods of programming education based on the learning styles as a results of questionnaire to some professors of computer science education in university. Then, I design and do programming education in the experimental class in order to verify the availability of the proposed teaching strategies and methods. After teaching in class, I evaluate the statistical results of students' achievement test of programming. This study has some restrictions about small number of class and periods of teaching programming, but it will be a good case study about teaching strategies and methods of programming education based on the learning style.

• Journal of Digital Convergence
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• v.19 no.12
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• pp.91-102
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• 2021

This study explored the educational effects of the digital citizenship teaching and learning model on middle school science classes. For this purpose, two classes of the third grade of middle school in Gyeonggi-do were selected, and the experimental group(28 students) was taught science classes using digital citizenship learning model, and the control group(28 students) was taught in regular lectures. The measurements used to verify the effects of science classes using the digital citizenship learning model were digital citizenship and empathy tools. The data collected for the effect verification were analyzed by independent sample t-test and ANCOVA. As a result, the experimental group applying the digital citizenship learning model showed higher scores of digital citizenship and empathy than the control group. Therefore, it can be seen that the middle school science class applying the digital citizenship learning model was effective in cultivating the digital citizenship and empathy of middle school students. In future studies, it is necessary to examine the effects of digital citizenship learning model at different school levels and other subjects.