• 한국HCI학회:학술대회논문집
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• 2006.02b
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• pp.493-498
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• 2006

본 연구에서는 온라인 상에서 대학학위 과정 교육을 목적으로 제작된 외국어 콘텐츠의 웹 아이덴티티 규명의 필요성과 규명된 웹 아이덴티티와 학습동기유발간의 상관관계를 연구하는데 중점을 둔다. 본 연구에서 채택된 외국어 교육 콘텐츠는 타 교육 분야보다 각 민족 언어의 아이덴티티가 시각적으로 재현되는 방식이 다양하다는 점에서 연구대상으로 부각되었다. 본 연구는 기존에 제시된 바 있는 웹 아이덴티티 분석 기준에서 출발하여 온라인 교육 콘텐츠 측면에서 이를 적용 및 재해석하고, 온라인 교육 콘텐츠 의 웹 아이덴티티 기준을 추가하였다. 따라서, 본 연구는 4년제 학사 학위를 수여하는 국내 0 사이버대학교의 외국어 교육 콘텐츠(영어, 일어, 중국어)의 사례를 웹 아이덴티티를 구현하는 세부 요소--시각디자인측면, 사운드측면, 인터페이스측면--에 맞추어 분석을 시도하였다. 또한 웹 아이덴티티가 적용된 각 외국어 교육 콘텐츠의 교육 효과 획득을 위한 학습동기유발 효과와의 상관관계를 알기 위하여 웹 아이덴티티가 적용, 제작된 외국어 교육 콘텐츠와 웹 아이덴티티가 적용되지 않은 채 제작된 외국어 교육 콘텐츠 간의 주의력, 관련성, 자신감, 만족감 등 학습동기유발 효과를 비교하는 설문 조사를 진행하였다. 이를 통해 온라인 외국어 교육 콘텐츠에 있어서 웹 아이덴티티의 개발과 적용이 외국어 교육 효과를 높이는 학습동기유발에 유의미한 역할을 한다는 것이 확인되었다.

• School Mathematics
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• v.19 no.3
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• pp.513-531
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• 2017

This study aims to analyze and compare Korean mathematics textbooks on time and to induce its educational implications. Concretely, the mathematics textbooks from the 1st to the 2009 national revised curriculum were selected for the longitudinal analysis. In each textbook, the contents such as clock reading, units of time, and calculation of elapsed time among various contents about time were chosen. The learning elements and their teaching sequence, the teaching method (the introducing ways of each concept and principle), and the didactical representations are set as an analysis framework. The results of analysis revealed many characteristics and differences in ways of dealing contents about time. Based on these results, we suggested several implications for writing the unit of time in elementary mathematics textbooks and teaching about time in classrooms.

• Proceedings of The KACE
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• 2017.08a
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• pp.143-145
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• 2017

최근 IT 기술이 발전함에 따라 교육형태도 많이 발전되고 있다. 특히 IT 기기를 활용할 수 있는 온라인 교육에 집중되고 있다. 온라인 교육 시스템 중 하나인 MOOT(Massive Open Online Textbook)이 주목받고 있다. MOOT는 텍스트 중심의 교육 기반이며, 온라인 교재 내에 실습환경이 있어 언제 어디서나 학습자가 자기주도적인 학습을 할 수 있도록 도와준다. 온라인을 통해 학습하기 때문에 수많은 학습자의 학습현황을 쉽게 파악할 수 없는 문제점이 제기되었다. 따라서 본 논문에서는 데이터 결과를 한 눈에 파악할 수 있도록 시각화를 제안하여, MOOT시스템 내에서 학습한 고려대학교 343명의 학생 데이터를 기반으로 학습자 데이터 시각화를 설계하였다.

• Journal of the Korean Society of Earth Science Education
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• v.17 no.2
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• pp.123-136
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• 2024

This study examines the performance expectations (PEs) and clarification statements of each PE in the 2022 revised national science and mathematics education standards from a data visualization competency perspective. First, the authors intensively reviewed data visualization literature to define key competencies and developed a framework comprising four main categories: collection and pre-processing skills, technical skills, thinking skills, and interaction skills. Based on the framework, the authors extracted a total of 191 mathematics and 230 science PEs from the 2022 revised science and mathematics education standards (Ministry of Education Ordinance No. 2022-33, Volumes 8 and 9) as the main data set. The analysis process consisted of three steps: first, the authors organized the data (421 PEs) by the four categories of the framework and four grade levels (3-4th, 5-6th, 7-9th, and 10th grade); second, the numbers of PEs in each grade level were standardized by the accomplishing period (1-3 years) of each PE depending on the grade level; lastly, the data set was represented by heatmaps to visualize the relationship between the four categories of visualization competency and four grade levels, and the differences between the competency categories and grade levels were quantitatively analyzed using the Mann-Whitney U test and independent sample Kruskal-Wallis tests. The analysis results revealed that in mathematics, there was no significant difference between the number of PEs by grade. However, on average, the number of PEs categorized in 'thinking skills' was significantly lower than those in the technical skills (p = .002) and interaction skills categories (p = .001). In science, it was observed that as grade level increased, PEs also increased (pairwise comparison: Grades 5-6 vs. 7-9, p = .001; Grades 5-6 vs. Grade 10, p = .029; Grades 3-4 vs. 7-9, p = .022). Particularly, the frequency of PEs in 'thinking skills' was significantly lower than in the other skills (pairwise comparison: technical skills p = .024; collection and pre-processing skills p = .012; interaction skills p = .010). Based on the results, two implications for revising national science and mathematics standards and teacher education were suggested.

• Journal of The Korean Association of Information Education
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• v.16 no.2
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• pp.255-263
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• 2012

Early algorithm education is very important in order to nurture excellent S/W developers in an information society. However a algorithm learning is a great challenge to elementary school students since understanding what a computer algorithm written in a static text format meant to do is difficult. It is expected that a student can easily visualize a algorithm through animations. In this study, we evaluate the pedagogical effectiveness of algorithm visualizations in teaching the fundamental data structures and algorithms in elementary schools. Thus we defined a new measure called 'Algorithm Visualization Factor(AVF)' and developed both text-oriented and animation-oriented PPTs of algorithm education elements, that is, Stack, Queue, Bubble Sort, Heap Sort, BDF, and DFS. We have conducted experiments and evaluations on diverse students groups. Extensive experiment results show that the average score of the student groups using animation-orirented PPT is greater(22%) than the one of the student groups using text-orirented PPT.

• Journal of The Korean Association of Information Education
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• v.24 no.6
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• pp.607-614
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• 2020

In this study, a scratch focused on data visualization was applied to 26 elementary school pre-service teachers to analyze the effect on improvement of creativity. Based on the results of the needs analysis conducted on 60 in-service elementary school teachers, the program using scratches according to the data visualization procedure was developed. With the developed educational program, 26 elementary school pre-service teachers were taught for 42 hours for a total of 4 months. In order to examine whether their creativity was improved, a creativity test was conducted and the effectiveness of the applied program was analyzed through a pre/post comparison tests. As a result of the analysis, it was found that the software education using scratch-oriented data visualization for elementary school pre-service teachers had significant effects on the fluency, sophistication, creativity average, and creativity index among the sub-elements of their creativity.

• Education of Primary School Mathematics
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• v.24 no.3
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• pp.115-134
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• 2021

This study implemented a comparative analysis of the international mathematics curriculum on time learning. It aimed the improvement of challenges students facing when they learn time. As a preliminary step, I reviewed the previous literature on teaching and learning of time, and based on this, I drew five issues that require to be considered for better time learning. The coverage of time contents and the learning periods of respective time contents were compared across the mathematics curriculum of Korea, Japan, Australia, the United States, and Finland. The textbook cases of those countries were analyzed with a special focus on the five issues. The results showed that the Korean curriculum assigned time learning contents compressively during short periods compared to other countries. responded to the issues on teaching and learning of time, several improvement ideas were deduced from textbook cases of other countries. Implications for the curriculum reform were discussed underlying the results.

• Journal of The Korean Association For Science Education
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• v.39 no.2
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• pp.295-305
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• 2019

In previous study, visual representation competence taxonomy (VRC-T), which is composed of two dimensions, was developed for the purpose of promoting effective visual representation use and research in science education. In this study, elementary school students' visual representation competence for shadow phenomenon was investigated using VRC-T. In terms of visual representation competence, 'interpretation' was the highest score, followed by 'construction' and 'integration'. It also showed that students' visual representation competence was not high even after learning shadow-related units in the regular curriculum. On the other hand, text-based scientific knowledge was not correlated with all categories of visual representation competence. This indicates that there is a need to emphasize visual representation more in science class. Finally, hierarchical relationship among cognitive processes of VRC-T was explored according to ordering theory. If the tolerance level is somewhat loosened, a linear hierarchical relationship was found between the six cognitive processes. This suggests that VRC-T is an analytical framework that can be useful when designing assessment tools, tasks, and science class activities to enhance visual representation competence.

• Journal of Educational Research in Mathematics
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• v.19 no.1
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• pp.143-161
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• 2009

This study was designed to gain insights into students' visualization process in geometric problem solving. The visualization model for analysing visual process for geometric problem solving was developed on the base of Duval's study. The subjects of this research are two Grade 9 students and six Grade 10 students. They were given 2D-geometric problems. Their written solutions were analyzed problem is research depicted characteristics of process of visualization of individually. The findings on the students' geometric problem solving process are as follows: In geometric problem solving, visualization provided a significant insight by improving the students' figural apprehension. In particular, the discoursive apprehension and the operative apprehension contributed to recognize relation between the constituent of figures and grasp structure of figure.

• Education of Primary School Mathematics
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• v.27 no.2
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• pp.139-153
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• 2024

This analysis was intended to present pedagogical implications related to the guidance of solid figures in elementary mathematics textbooks. The definitions of mathematical concepts and visually represented examples presented in the prism and pyramid units were analyzed. As a result of the analysis, differences were observed in both the method and content of defining mathematical concepts, even though the same curriculum was reflected. Additionally, various forms of visual examples were provided during the learning process of prisms and pyramids. Based on the results of this analysis, it is necessary to understand the definition of mathematical concepts and to teach students in an appropriate manner, considering the goals of each session and the objectives of the activities involved in presenting visual examples.