• Korean Journal of Mathematics
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• 제24권4호
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• pp.737-750
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• 2016

In this note we describe some classes of rings in relation to Abelian property of factorizations by nilradicals and Jacobson radical. The ring theoretical structures are investigated for various sorts of such factor rings which occur in the process.

• Korean Journal of Mathematics
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• 제21권3호
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• pp.311-318
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• 2013

We continue the study of power-Armendariz rings over IFP rings, introducing $k$-power Armendariz rings as a generalization of power-Armendariz rings. Han et al. showed that IFP rings are 1-power Armendariz. We prove that IFP rings are 2-power Armendariz. We moreover study a relationship between IFP rings and $k$-power Armendariz rings under a condition related to nilpotency of coefficients.

• 한국학교수학회논문집
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• 제25권2호
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• pp.175-194
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• 2022

본 연구는 2022 개정 수학과 교육과정을 앞두고 우리나라의 고등학교 수학과 교육과정과 영국의 고등학교 수학과 교육과정과 비교함으로써 시사점을 제시하고자 한다. 영국은 2017년 이후 16세 이후 수학을 강조하고 평가를 개정하였다. 이에 따라 영국의 고등학교 수학교육과정에 해당되는 Key stage 4, Core Maths, A-level의 내용을 살펴보고, 우리나라 고등학교 공동과목, 일반선택과목, <기하> 과목과 비교하였다. 영국에서는 고등학교 단계에서 수학교육을 강조하고 있는데 이에 따라 교육과정 총론에서 '수리력과 수학'을 강조하고 학생들의 수학 선택권을 확대하고 미래사회를 대비하기 위하여 새로운 수학 교과목 및 평가를 함께 개발하여 시행하고, 기존의 A-level 수학 평가를 개선하였다. 또한 주제 중심의 내용을 Key Stage 3부터 고등학교 단계에서도 발전적이고 지속적으로 다루고 다른 영역의 주제와 연결하여 다룸으로써 수학의 내적 외적 연결성이 용이하도록 구성하고 있었다.

• 대한수학교육학회지:학교수학
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• 제10권4호
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• pp.649-669
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• 2008

본 연구는 고등학교 학생들의 수학의 본질에 대한 인식과 신념 및 수학 학습에 대한 신념을 살펴보고, 수학교육의 발전을 위한 시사점을 찾아보는 데 목적이 있다. 이를 위해 일반계고 학생들과 전문계고 학생들의 수학의 본질에 대한 인식과 신념, 수학 학습에 대한 신념을 비교 분석하였고 각 학교의 학생들에 대한 신념의 차이점을 살펴보았다. 그 결과, 일반계고와 전문계고의 학교 유형별로 수학의 본질에 대한 인식과 신념, 수학 학습에 대한 신념의 차이가 두드러지게 나타났다. 또 고등학교 학생들은 수학의 가치성에 대해 낮게 평가하였으며, 일반계고 학생들이 전문계고 학생들보다 수학의 '심미적 가치', '도야적 가치' 및 '실용적 가치'를 더 낮게 평가하고 있는 것으로 분석되었다.

• 한국수학교육학회지시리즈A:수학교육
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• 제45권4호
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• pp.381-406
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• 2006

This work aims to investigate mathematics teachers' knowledge and belief on the high school probability and statistics. For this aim, two research questions are estabilished as follows. (1) How is mathematics teachers' knowledge on the main contents of the high school probability and statistics in the 7th mathematics curriculum? (2) What is mathematics teachers' belief on the high school probability and statistics? Survey and interviews were carried out to answer the above research questions. Subjects of the survey were 2 7mathematics teachers who were answered to questionnaire. Among them, 3 volunteers were chosen by provinces for in-depth interview. Research findings in mathematics teacher's knowledge are as follows. Firstly, mathematics teachers do not have much of mathematical knowledge on the newly added and changed contents of the high school probability and statistics in the 7th mathematics curriculum. Secondly, mathematics teachers do not change their teaching-learning method for probability and statistics. Thirdly, many teachers think that the use of technology and reconstruction of the textbooks are required in teaching and learning of the high school probability and statistics. But, they stick on their own way. Research findings in mathematics teachers' belief are as follows. Firstly, many mathematics teachers view the nature of statistics as a branch of the applied mathematics and put the value of high school probability and statistics on the practical usefulness, Secondly, many mathematics teachers think that understanding concepts and improving problem solving ability are the best method of the teaching and learning. Thirdly, many mathematics teachers think that high school probability and statistics textbooks should cause motivations and interests in order not to give up studying probability and statistics. It is expected that the above findings can be used to change teachers' teaching and learning methods and to improve teachers training program.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제9권3호
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• pp.269-273
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• 2005

Nowadays application of modem achievements of information technologies in science, engineering and education is usual phenomenon. Application of these technologies allows easily creating new methods of learning of mathematics. More of new methods of creation of multimedia electronic manuals on high mathematics are founded to application of multimedia and communication opportunities of the computer. But application only multimedia and communication opportunities of the computer at creation of multimedia electronic manuals on high mathematics is insufficient to elimination of 'gap' between training and studying high mathematics. So, we offer a new way of the decision of this problem: creation of a multimedia electronic manual on high mathematics with built-in a mathematical environment MathCad in the national language.

• International Journal of Contents
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• 제17권2호
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• pp.9-19
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• 2021

The purpose of this survey-based study was to investigate high school students' perceptions of mathematics teachers' implementation of Universal Design for Learning (UDL)-based practices and technology in their mathematics classes in 2017. A total of 303 high school students in South Korea participated in this online survey on teachers' use of technology for instructional practices, the frequency of technology tool use, and the meeting of UDL guidelines in mathematics instruction. According to frequency analysis, high school students generally perceived their teachers' mathematics teaching as somewhat positive in providing multiple means of representation, action and expression, and engagement. However, mathematics teachers' implementation of technology tools in their mathematics classes was generally limited. This study indicated significant and positive relationships between variables regarding the use of technology tools and teachers' efforts to follow the UDL guidelines. Applying the Chi-squared test, we further examined how each survey result differed according to high school students' academic achievements and grade levels.

• 한국학교수학회논문집
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• 제3권1호
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• pp.47-57
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• 2000

The purpose of this study is to investigate the degree of anxiety factors for learning mathematics and look into the reason of anxiety of mathematics and show the method of eliminating negative and anxious factors in elementary school, secondary school and high school. To have learner take an interest in learning mathematics, develop the positive attitude about learning mathematics and maximize the effect of learning of mathematics, three kinds of hypotheses are established as follows: 1. There would be difference in anxiety factor of learning mathematics according to elementary school, secondary school and high school. 2. There would be difference in anxiety factor of learning mathematics according to sex. 3. There be difference in anxiety factor of learning mathematics according to the level of achievement. The results of this study are as follows: 1. Hypotheses I was testified. The anxiety factor between mathematics learning and mathematics teacher was significant difference according to elementary school, secondary school and high school. 2. Hypotheses II was testified. The result of hypotheses II was significant difference only in high school. The anxiety factor of mathematics teacher was significant difference according to boy student and girl student. 3. Hypotheses III was testified. The anxiety factor of mathematics, teacher and test was significant difference only in elementary school and high school.

• 한국수학교육학회지시리즈A:수학교육
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• 제52권3호
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• pp.423-442
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• 2013

The purpose of the study was to examine the effects of the reciprocal peer tutoring in high school students' affective characteristics with respect to mathematics. The study was conducted with 111 first graders in one high school located in Gyeonggi-do, and the study lasted for 1 year in regular mathematics classrooms. According to the results, reciprocal peer tutoring was very effective in improving students' interest and self-efficacy toward mathematics and reducing mathematics anxiety. Especially, in high and low performing student groups, there were statistically significant improvements in affective factors such as interest, self-efficacy toward mathematics, and mathematics anxiety after reciprocal peer tutoring. However, average performing student group showed statistically significant improvements in affective factors of interest and self-efficacy toward mathematics.

• 한국수학교육학회지시리즈A:수학교육
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• 제41권2호
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• pp.139-155
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• 2002

In this paper we represented the results of surveying on the present condition of mathematics education and the contents of the mathematics text books that are usually taught in Art High Schools interest in mathematics subjects and to achieve the higher level of mathematical abilities. We would like to raise their interest in mathematics and to improve the efficiency of teaching level on the basis of the 7th Mathematics Curriculum Revision. Some suggestions are of offered by considering the level of their mathematical abilities in Art High Schools and the present contents of the mathematical subjects from following views ⑴ the aspect of studying method ⑵ the aspect of revising contents of mathematics textbooks for them ⑶ the aspect of educational policies for Art High Schools