• 한국수학교육학회지시리즈A:수학교육
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• 제47권4호
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• pp.487-503
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• 2008

In this paper, descriptive assessment method for middle school mathematics was evaluated by developing a framework for designing and grading problems for descriptive assessment and analyzing the effectiveness of the problems. The new descriptive assessment problems were developed by reviewing the current 7th National Mathematics Curriculum of Korea and aligned mathematics textbooks to define a set of problem design principles and evaluation framework for the assessment strategy. The developed problems were first pilot tested and then revised based on the feedback from the test. The final version was field tested by 100 students in 7th grade middle school. After the field test, the problems were graded by two middle school math teachers and one math education researcher to determine the overall correlation between graders and also to analyze effectiveness of the evaluation framework of the test. This result of this study is expected to assist in the further development of descriptive problems and grading framework by providing a reference work for teachers to better understand the process and the limitations of executing the new assessment strategy.

• 한국수학교육학회지시리즈A:수학교육
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• 제57권2호
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• pp.93-110
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• 2018

One of the biggest changes in the 2015 revised mathematics curriculum is shifting to the second year of middle school in Pythagorean theorem. In this study, the following subjects were studied. First, Pythagoras theorem analyzed the expected problems caused by the shift to the second year middle school. Secondly, we have researched the reconstruction method to solve these problems. The results of this study are as follows. First, there are many different ways to deal with Pythagorean theorem in many countries around the world. In most countries, it was dealt with in 7th grade, but Japan was dealing with 9th grade, and the United States was dealing with 7th, 8th and 9th grade. Second, we derived meaningful implications for the curriculum of Korea from various cases of various countries. The first implication is that the Pythagorean theorem is a content element that can be learned anywhere in the 7th, 8th, and 9th grade. Second, there is one prerequisite before learning Pythagorean theorem, which is learning about the square root. Third, the square roots must be learned before learning Pythagorean theorem. Optimal positions are to be placed in the eighth grade 'rational and cyclic minority' unit. Third, Pythagorean theorem itself is important, but its use is more important. The achievement criteria for the use of Pythagorean theorem should not be erased. In the 9th grade 'Numbers and Calculations' unit, after learning arithmetic calculations including square roots, we propose to reconstruct the square root and the utilization subfields of Pythagorean theorem.

• 대한수학교육학회지:수학교육학연구
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• 제14권1호
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• pp.111-127
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• 2004

본 연구는 기하 부분의 내용이 초등학교에서 중학교로 발전 전개되는 과정에서 일부 용어의 정의와 평행선과 각의 취급에 대하여 알아보았고, 교육과정에 제시된 관련내용을 분석하고 그에 따른 현행 교과서를 살펴보았다. 다음에 관련된 분야의 일부 외국교과서를 비교 분석하여 그 상황을 알아보았다 그 결과 현행 교과서 보다 바람직한 내용의 취급을 위해서는 우선 체계적인 학습을 할 수 있도록 교육과정에 보다 적합한 학습내용과 그 취급 방법을 제시해야만 하고, 그에 따라 교과서도 보다 적합하게 집필되어야 함을 제시하였다. 이를테면 용어의 정의는 반복하여 충분히 이해하도록 하고, 특히 교육의 다양성을 위해서 평행선의 성질에 관한 내용은 공준으로 도입하여 활용할 수도 있고, 우수한 학생들은 증명을 하여 활용할 수도 있도록 다양한 취급을 하는 것이 바람직함을 제시하였다. 그리고 특히 현행 교과서에서는 <7-나 단계에서 취급되고 있는 맞꼭지각의 성질과 평행선의 성질과 같은 연역적 추론에 의해서 증명될 수 있는 내용들은 18- 나 단계>로 이동을 하여 학습하는 것이 학습 체계의 연계에 바람직함을 제시하였다.

• 대한수학교육학회지:학교수학
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• 제7권4호
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• pp.337-352
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• 2005

본 연구에서는 학교수학수업에의 공학적 도구 활용을 논의의 주제로 설정하고 예비수학교사교육에서 사례연구를 실시하였다. 예비관찰을 통해 사례로 선정된 사범대학 재학생들을 대상으로 수학교육프로그램을 활용하여 7${\~}$9단계 수학 학습에 적용할 수 있는 교수-학습 자료를 개발하는 수업활동을 시행하였다. NCTM과 제7차 교육과정의 교수-학습방법 제안을 배경으로 하여 본 연구에서는 공학적 도구를 활용하여 수학학습의 효과를 높일 수 있다는 명제를 개념적 틀로 설정하였다. 그리고 이를 연구의 방향과 자료분석의 토대로 삼았다. 연구과정에서 수집된 관찰자료, 면담자료, 문서자료 등을 토대로 연구의 초기에 설정된 세 가지 연구문제에 대한 결과를 분석하였다. 아울러 학교현장의 수학수업에 활용할 수 있는 공학적 도구 활용교수${\cdot}$학습 보조자료를(단계별 수학디자인 산출물) 개발하여 제시하였다.

• 한국수학교육학회지시리즈A:수학교육
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• 제42권3호
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• pp.265-274
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• 2003

To learn number system is a basic thing in school mathematics. In this paper, we analyze how number system is introduced in the 7th national curriculum and text books according to it. We found that the method of introducing number system is quite different from the former curriculum and former text books. There are many negative effects on the transition when compared with those of United States of America. There are many gaps between elementary school mathematics and middle school mathematics about levels and skills to deal with numbers. It is desirable to distinguish the negative sign from subtraction and to keep the concepts of commutativity and associativity of operations from the beginning. We also suggest to change the introducing timing and extension methods of number system in 7th grade mathematics.

• 한국학교수학회논문집
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• 제22권4호
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• pp.483-500
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• 2019

본 연구에서는 중학교 수학교과서에서 기하 영역의 반 힐레 수준과 학생들의 반 힐레 수준을 비교 분석하였다. 교육과정이 개정되어 오면서 기하 영역에서의 내용은 감소되었지만 반 힐레 수준의 변화는 크지 않았고, 교과서에 제시되어 있는 내용의 기하 수준과 학생의 기하 수준과는 차이가 많이 남을 알 수 있었다. 교과서의 반 힐레 수준은 1학년의 경우 1, 2, 3수준, 2, 3학년의 경우 2, 3, 4수준에 분포되어 있고, 학생의 수준은 1학년의 경우 1수준 이하가 69%, 2, 3학년의 경우 2수준 이하가 각각 73.7%, 47.6%로 나타나 차이가 큼을 알 수 있다. 특히 2, 3학년의 경우 문제에서보다 교과서 본문의 내용의 반 힐레 4수준 비율이 높아 학생에게 어려움을 야기할 수 있음을 알 수 있었다.

• Educational Technology International
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• 제17권2호
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• pp.229-251
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• 2016

This study was designed to investigate the relationship between middle school students' smart media competency and online learning outcomes. The context of this study was on online inquiry-based mathematics and science learning environment, and four-hundred and fifty-five (455) 7^th to 9^th grade students in Korea participated in this research. To assess students' smart device competency, Smart Media Literacy Quotient (SMLQ) which consisted of 18 items regarding the operation ability of smart media and its application (14 items) and positive beliefs of smart media (4 items) was administered to each student. The findings of this study first showed that students' smart media literacy varied according to their characteristics such as gender, grade, class (subject), and socio-economic status. Female students' scores were higher in overall smart media literacy operation and learning ability of smart media than male students. 7^th grade middle school students represented lower smart media literacy scores, compared to 8^th and 9^th graders. Also, minority students were significantly lower in smart media literacy, operation and learning ability of smart media, and positive belief of smart media than the non-minority students. Second, overall smart media literacy and operation and learning ability of smart media varied among high, medium, and low score achievers in inquiry tasks. Low scored students in inquiry tasks were significantly lower in overall smart media literacy and operation and learning ability of smart media than medium scored students. Lastly, smart media literacy also varied by students' dropout/completion. Students who dropped out reported significantly lower scores in overall smart media literacy, operation and learning ability of smart media, and positive belief of smart media.

• 한국학교수학회논문집
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• 제19권4호
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• pp.417-439
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• 2016

이 연구에서는 중학교 1학년 수학교실에 도입한 배움공동체 교수 학습 방법의 효과를 수학성취도와 수학에 대한 태도의 두 측면에서 조사하고자 하였다. 이를 위하여 서로 다른 중학교 1학년 각각 1개 학급을 선정한 후에 한 학기 동안 각각 배움공동체 교수 학습 방법과 교과서 기반 설명식 교수 학습 방법을 적용하였다. 연구 결과, 중학교 1학년 학생의 수학 성취도는 두 교수 학습 방법 사이에 유의미한 차이가 없는 것으로 나타났다. 반면에, 수학에 대한 태도는 배움공동체 교수 학습 방법으로 학습한 학생이 교과서 기반 설명식 교수 학습 방법으로 학습한 학생보다 유의미하게 더 긍정적인 것으로 나타났다. 특히, 수학에 대한 태도의 7가지 하위 영역 중에서 수학에 대한 호기심, 과제집착력과 의지, 창의적 사고, 수학 수업 참여 등의 4개 영역에서 유의미한 차이가 있었다.

• East Asian mathematical journal
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• 제36권4호
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• pp.437-454
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• 2020

The purpose of this study is to develop a mathematical assessment and correction materials according to the mathematics learning hierarchy. The scope of the study is set to 'function' in 7th grade of middle school. The researchers developed a draft of the mathematical assessment and correction materials based on the mathematics learning hierarchy through the pilot test and the expert review. Using the results of the expert review, the researchers modified and supplemented the math assessment and correction materials to produce the final version. The mathematics assessment and correction material developed in this study is expected to build an effective guidance system for students with mathematics deficits. In addition, by presenting a mathematical assessment and correction materials to the teachers in the field, it is possible to reduce the effort for the management of underachievers and to provide guidance for the education of students with a lack of math learning.

• Journal of the Korean Data and Information Science Society
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• 제16권4호
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• pp.843-848
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• 2005

The purpose of this qualitative case study is to understand how the idea of data view and information graphics is used in the social studies high school textbooks. Data were collected through national curriculum documents and social studies middle school textbooks for the 10th grade students. We set up three questions for this study; what kinds of information graphics are used in the textbooks, how the graphics are organized in the social studies middle school, and how the 7th social studies curriculum is related with the 7th national mathematics curriculum. Through the data analysis, we found that 1) photographs, information tables, illustrations, etc., are used and frequencies of their usages are in descending order, 2) double lines graphs, and stripe graphs are often adopted for the comparison of populations, 3) the relation of the two subjects curricula is not well developed, especially in the curriculum steps of information maps, scatter diagrams, and comparison of populations. Finally we suggest that new web site of data view or information graphics be provided for two curricula, workshop of information graphics be needed for social studies teachers, and modification of the 7th probability and statistics curriculum.