• School Mathematics
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• v.5 no.1
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• pp.97-114
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• 2003

This study is a basic step research for developing mathematics teacher education program using the potential power of explorative softwares for learning geometry. This study investigates the characteristics of the softwares and noteworthy points in its applying process. Analizing an impact of this softwares on the mathematics leaching and learning, this study presents the desirable direction for developing the teacher education program for mathematics teachers to be ableto teach successfully. Focusing on GSP as an to manage classrooms of the 21st century successfully. Focusing on GSP as an excellent explorative software used widely in the current mathematics classrooms, this study investigates the potential contents to be used in the teacher education program for mathematics teachers to get new kinds of experiences about the softwares and suggests implications for choosing contents and instructional methods of the program using the softwares.

• Journal of the Korean School Mathematics Society
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• v.15 no.4
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• pp.643-671
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• 2012

The purpose of this study was to examine How the exploratory activities using Excel and GSP which are exploratory software, in learning analytic geometry affected on the underachievers' analytic geometry concept development process. The subjects of 5 students who received the 8th~9th grades from their examination of the last semester, participated in a total of 7 units based on Skemp's intelligent learning model. The results of the study showed that there were two important cases found to nearly achieve the category $R_2$. One was reflective thinking could happen through exploratory software in category $R_1$. The other was the exploratory activities which could have the same effectiveness as the relational understanding in category $I_2$, as Skemp mentioned that there is a room to be achieved in the elementary level when such relational understanding is achieved.

• Communications of Mathematical Education
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• v.37 no.2
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• pp.299-327
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• 2023

In this study, we tried to find out the level of inductive reasoning ability and the aspects of visualization components shown in students in the class using exploratory software for the 'congruence and symmetry' unit in the second semester of the 5th grade of elementary school. To this end, classes using GeoGebra, one of the exploratory software, were conducted for a total of 19 students in one class of fifth graders in elementary school, and the results of the students' activities were analyzed. As a result of this study, the level of inductive reasoning ability of students remained at a similar level or developed, and it was shown that students inferred new properties of shapes using various functions of software inductively. In addition, in terms of visualization, students were able to quickly and easily draw shapes that met the conditions, and unlike the paper-and-pencil environment, using the 'measurement' and 'symmetry' functions, they transformed and manipulated complex yet precisely congruent and symmetrical external representations. Based on these analysis results, implications for the use of exploratory software in the area of figures were derived.

• Journal of the Korean School Mathematics Society
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• v.9 no.4
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• pp.459-479
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• 2006

The purpose of this study is to investigate the applicability of DGS(dynamic geometry software) for the assessment of reasoning ability and the influence of DGS on the process of assessing students' reasoning ability in middle school geometry. We developed items for assessing students' reasoning ability by using DGS in the connected form of 'construction - inductive reasoning - deductive reasoning'. And then, a case study was carried out with 5 students. We analyzed the results from 3 perspectives, that is, the assessment of students' construction ability, inductive reasoning ability, and justification types. Items can help students more precisely display reasoning ability Moreover, using of DGS will help teachers easily construct the assessment items of inductive reasoning, and widen range of constructing items.

• 한국정보교육학회:학술대회논문집
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• 2008.01a
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• pp.198-205
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• 2008

오늘날과 같은 지식 정보화 사회는 지식과 정보를 기초로 한 사회활동이 주를 이루고 있다. 그래서 교육현장에서도 학습자는 컴퓨터를 이용하여 정보를 수집하고 처리하는 정보의 주체로 인식되어지고 있다. 특히 수학 교과 내용 중 도형 영역은 컴퓨터를 이용하여 다양한 시각적 경험과 탐구 기회를 제공하는 것이 매우 중요하다. 이를 실현하기 위한 방법으로써 여러 가지 방법이 있지만, 본 논문에서는 Sketchup이라는 상용 소프트웨어를 활용하여 도형 영역에 적용시켜 활용하는 방안에 대해 연구하였다. 학생들이 수학을 재미있고 쉽게 생각할 수 있는 방안을 내세우기란 쉽지 않지만, 이 연구의 결과로부터 수학과목의 도형영역에 대한 수학적 사고력과 성취도를 높이고 Sketchup과 같은 탐구형 소프트웨어의 효과적 활용 방안을 마련하고, 이를 통해 수학에 대한 긍정적인 인식을 마련할 수 있는 기틀이 되고자 한다.

• Journal of The Korean Association of Information Education
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• v.24 no.6
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• pp.615-622
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• 2020

This paper analyzed 'Software Education' of the Practical Arts unit among the six textbooks developed under the 2015 revised curriculum, and provided implications for selection of textbooks, researching curriculum, and developing the next textbook. As a result of analyzing the prior study, it was found that the inquiry analysis was insufficient in the case of the elementary school 'Software Education' unit. the inquiry analysis was insufficient. On the contrary, in the middle and high school textbook research was sufficient. Therefore, we analyzed the contents of the textbook using the Romey analysis method, judging that our children who will live in the era of the Fourth Industrial Revolution need an exploratory textbook. As a result of analyzing textbooks, there was no ideal textbook with inquiring tendencies in all analysis factors, and different analysis factors with high inquiring tendencies were found in each textbook. In the entire textbook, the analysis element with the lowest inquiring tendency was the text, and the highest analysis element was the activity. The analysis factors with the greatest deviation in the evaluation index between textbooks are data and evaluation.

• The Mathematical Education
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• v.60 no.2
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• pp.159-172
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• 2021

The purpose of this study is to compare and analyze the effects of physical manipulative and exploratory geometry software on the spatial sense for 5^th grade elementary school students in learning nets. For this purpose, ton experimental group used Geofix, an operational learning tool, and the experimental group used Cabri 3D, an exploratory geometry software to learn the nets of solids. The comparison group was learned by worksheet only without any manipulative or software. Spatial sense tests were conducted before and after to determine the level, and eye tracking were used to analyze the strategies of students in solving nets problems. As a result, it was confirmed that the using Geofix group was the most effective for the spatial sense, and Cabri 3D could also be a good tool for learning the nets of solids. In addition, after learning the nets of solids, the analytical strategy, which was the most effective strategy for students' solving strategies, increased. In the process of solving spatial tasks such as the spatial sense tasks, eye tracking technology become a very useful tool for exploring students' strategies, so it is expected that objective and useful data will be collected through more active use in the future.

• Journal of Educational Research in Mathematics
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• v.12 no.4
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• pp.543-556
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• 2002

The purpose of this study is to find a method to improve geometry instruction. For this purpose, I have investigated aims and problems of geometry education. I also reviewed related literature about discovery methods as well as verification. Through this review, “Mathematising teaching and learning methods” by Freudenthal is Presented as an alternative to geometry instruction. I investigated the capability of dynamic software for realization of this method. The result of this investigation is that dynamic software is a powerful tool in realizing this method. At last, I present one example of mathematic activity using dynamic software that can be used by school teachers.

• Proceedings of the Korea Information Processing Society Conference
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• 2024.05a
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• pp.480-481
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• 2024

이 연구는 자폐 스펙트럼 장애(ASD)를 가진 아이들을 대상으로 한 디지털 치료제의 필요성을 탐구하고자 한다. ASD는 사회 생활 및 관심사에 제한을 가지고 있으며, 현재까지는 진단과 치료에 대한 효과적인 방법이 없는 상황이다. 최근 디지털 기술과 의료가 결합된 치료제의 중요성이 부각되고 있기에, 저자는 이를 통해 시간과 비용을 절감하는 디지털 치료 방법을 제안한다. 본 연구에서는 대화형 인공지능을 활용하여 스무 고개 게임을 통해 자폐 스펙트럼 장애를 가진 아이들의 사회성 기술을 향상시키는 플랫폼을 개발하고자 한다. ASD특성을 고려하여 디지털 기기에 익숙한 아이들에게 소통을 훈련시키는 효과를 기대한다.

• The Mathematical Education
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• v.41 no.3
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• pp.341-360
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• 2002

The purpose of the study was to investigate the effectiveness of dynamic software in solving high school analytic geometry problems compared with traditional algebraic approach. Three high school students who have revealed high performance in mathematics were involved in this study. It was considered that they mastered the basic concepts of equations of plane figure and curves of secondary degree. The research questions for the study were the followings: 1) In what degree students understand relationship between geometric approach and algebraic approach in solving geometry problems? 2) What are the difficulties students encounter in the process of using the dynamic software? 3) In what degree the constructions of geometric figures help students to understand the mathematical concepts? 4) What are the effects of dynamic software in constructing analytic geometry concepts? 5) In what degree students have developed the images of algebraic concepts? According to the results of the study, it was revealed that mathematical connections between geometric approach and algebraic approach was complementary. And the students revealed more rely on the algebraic expression over geometric figures in the process of solving geometry problems. The conceptual images of algebraic expression were not developed fully, and they blamed it upon the current college entrance examination system.