• 대한수학교육학회지:학교수학
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• 제18권3호
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• pp.503-526
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• 2016

본 연구의 목적은 대입 수리논술고사의 평가요소를 통하여 수리논술고사에 대한 정체성을 규명하고 실제 수리논술고사가 어떻게 출제되고 있는지 살펴보는 것이다. 수리논술고사에 관한 이해를 얻기 위해 2016학년도에 수리논술고사를 실시한 우리나라 25개 대학교 홈페이지에 있는 논술자료집에서 수리논술고사의 평가목표 및 출제방향을 분석하여 수리논술고사의 평가요소를 추출하고, 2015학년도 기출문제를 분석하여 실제 수리논술고사가 어떻게 출제되고 있는지 살펴보았다. 수리논술고사의 평가목표 및 출제방향에 나타난 평가요소는 수학적 지식, 이해력, 논리 비판적 사고력, 문제해결력, 창의력, 표현력, 논증력으로 수리논술고사의 정체성은 이런 능력, 즉 수학적 지식을 포함하는 고차원적인 사고능력과 논술능력을 평가하기 위한 시험이라고 할 수 있다. 또한, 수리논술고사 평가요소에 따라 수리논술 평가기준을 정하고 수리논술고사 기출문제를 분석하였다. 이를 통해 수리논술고사는 평가요소 중 수학적 지식, 이해력, 문제해결력을 요구하는 문제 위주로 출제되고 있음을 알 수 있었다.

• 한국수학교육학회지시리즈A:수학교육
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• 제40권2호
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• pp.179-194
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• 2001

The seventh curriculum put into operation gradually from first-year student in 2000 academic years of elementary school is subject to form and apply a step-wise level curriculum. Mathematics(correspond to junior high school course from 7th school year to 9th school year) should apply a step-wise level curriculum from 7th school year in 2001 academic years. Accordingly, mathematics teachers must diagnose actual conditions of educations, distribution tables of test results, step-wise teaching-studying programs etc. They also make proper plans suitable for actual situations of each school, prepare appropriate teaching materials and aids. I investigated preceding studies planned for preparation of putting into operation of a step-wise level curriculum. It showed that most of the studies were conducted at schools of medium or large scale and studies conducted at schools of small scale was rare. There were 113 small scale middle schools out of total 297 middle schools in Kyongsangbuk-do area in 2000. In this situation, I felt necessities of modeling of a step-wise level curriculum suitable for small scale schools. In this study, I modeled a step-wise level curriculum suitable for small scale middle schools, applied this model to 44 students in M middle school. I modeled two types of curriculum. One is a step-wise level curriculum that execute special supplementation process to students who do not complete 7-가 step successfully. The other is a step-wise level curriculum which is a regular model for a step-wise level of 7-나 step. I carried out an academic achievement test and intimacy test about mathematics before and after the application of the model. In this study, I found out that this model was very effective in academic achievement of students and helpful to declined students in scholarship. In the intimacy test, It was found out that most of the students gained confidence in mathematics, felt less anxiety, formed positive self consciousness. Therefore, I think that this model will be helpful to the application of the seventh step-wise level curriculum.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제28권3호
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• pp.174-182
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• 2017

Objectives: This study was conducted in order to develop a computerized test to measure the level of mathematic achievement and related cognitive functions in children and adolescents in South Korea. Methods: The computerized Comprehensive Learning Test-Mathematic (CLT-M) consists of the whole number computation test, enumeration of dot group test, number line estimation test, numeral comparing test (magnitude/distance), rapid automatized naming test, digit span test, and working memory test. To obtain the necessary data and to investigate the reliability and validity of this test, 399 children and adolescents from kindergarten to middle school were recruited. Results: The internal consistency reliability of the CLT-M was high (Cronbach's alpha=0.76). Four factors explained 66.4% of the cumulative variances. In addition, the data for all of the CLT-M subtests were obtained. Conclusion: The computerized CLT-M can be used as a reliable and valid tool to evaluate the level of mathematical achievement and associated cognitive functions in Korean children and adolescents. This test can also be helpful to detect mathematical learning disabilities, including specific learning disorder with impairment in mathematics, in Korea.

• East Asian mathematical journal
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• 제39권2호
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• pp.199-227
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• 2023

The Korean government initiated an educational policy regulating academic acceleration in schools (e.g., regulating teaching or assessing above-grade-level content) in order to normalize public education and prevent the growth of private tutoring. To analyze whether the policy is achieving its intended goals, this study examined how high school mathematics teachers responded to the policy. The findings indicate four distinct teacher responses: the teachers would teach above-grade-level lessons in classes, but not assess them on a test; the teachers sought academic acceleration to prevent excessive private tutoring, although the policymakers thought that teachers' academic acceleration results in an excessive demand for private tutoring; the teachers were willing to teach above-grade-level content for students, but they were reluctant to teach below-grade-level content due to the time constraints; and the teachers recognized that the policy limited their curricular autonomy, even though it was intended to ensure their autonomy. Implications for mathematics teacher educators and policymakers are discussed.

• 한국학교수학회논문집
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• 제9권2호
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• pp.163-177
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• 2006

수학영재의 창의적 문제해결력 신장을 위한 새로운 교수 학습방법이 요구되고 있다. 이에 본 연구는 과학고 수학반 학생들을 대상으로 사사프로젝트 학습을 실시하여 수학영재들이 어떠한 상황에서 창의성을 발휘하는가, 학습과정에서 벌어지는 영재 상호 간의 교류가 그들의 창의성 신장에 도움이 되는가, 또한 창의적 문제해결력 검사를 실시하고 그 결과 분석을 통해 수학영재들에게 사사프로젝트 학습이 효과성이 있는가를 알아보았다.

• 한국수학교육학회지시리즈A:수학교육
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• 제39권2호
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• pp.127-144
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• 2000

School mathematics are composed of five major units of numbers& algebraic expressions, equations & inequalities, functions, figures, and statistics & probabilities. But if we look into the general activities of mathematics teachers in their class, they rather do not take into account students\` cognitive and affective traits or degree of difficulty which each of the unit has. For successful teaching of mathematics, teachers should take into consideration many affective items which influence the students\` scholastic achievement. Among them student\`s liking for the mathematics is commonly accepted as the most important factor for successful learning. In this study, with the five units of school mathematics, we investigated the students\` degree of likings for each unit. To fined out whether there are any differences in students\` likings for the mathematics, between regions and kind of schools, we classified the population according to the locations and kinds of schools. To do this, we divided the whole region into four parts such as Seoul, large city, medium city and town. Moreover, we partitioned the whole secondary school students into four groups of middle school students, vocational high school students, pro-science students of academic high schools, and pro-liberal arts students of academic high schools. From each partition, we sampled similar size of experimental groups which came up to total 1260 students. Analysing the answer sheets which the students responded about the questionnaire, we investigated the following questions using the ANOVA test. 1. Is there any differences in the trend of likings for each unit between the regional classifications? 2. Is there any differences in the trend of likings for each unit between the classifications of secondary schools? 3. What trends of changes are there in the degree of likings for each unit according to the rising of students\` grade?

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권5호
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• pp.2768-2780
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• 2019

Ciphertext-policy attribute-based encryption (CP-ABE) is one of the practical technologies to share data over cloud since it can protect data confidentiality and support fine-grained access control on the encrypted data. However, most of the previous schemes only focus on data confidentiality without considering data receiver privacy preserving. Recently, Li et al.(in TIIS, 10(7), 2016.7) proposed a CP-ABE with hidden access policy and testing, where they declare their scheme achieves privacy preserving for the encryptor and decryptor, and also has high decryption efficiency. Unfortunately, in this paper, we show that their scheme fails to achieve hidden access policy at first. It means that any adversary can obtain access policy information by a simple decisional Diffie-Hellman test (DDH-test) attack. Then we give a method to overcome this shortcoming. Security and performance analyses show that the proposed scheme not only achieves the privacy protection for users, but also has higher efficiency than the original one.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제12권3호
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• pp.201-213
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• 2008

The main purpose of this study is to explore the relationship between the 'logical reasoning skill' and performance in the logic unit that is part of the grade 9 syllabus in mathematics in Turkey. After the teaching of the logic unit, an achievement test, a general skills test and the test of logical reasoning were administered to the 80, 9th year high school students. Pearson Moments Correlation coefficient was used for the analysis of the data to determine the relations between the variables. In addition to that to obtain the most suitable regression explaining the students' performances in the logic unit, stepwise multiple regressions analysis was used. At the end of the study, statistically significant relations were found between the students' performance in the logic unit and their logical reasoning skills, their results of the shape recognition test from the general skills battery and their overall performance in the mathematics lesson.

• 한국학교수학회논문집
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• 제23권4호
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• pp.469-489
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• 2020

중학교 학생은 수학불안의 정도가 높은 것으로 알려져 있다. 오늘날 중학교 학생의 특성을 반영한 검사도구의 필요성에 따라 중학교 학생을 위한 수학불안 검사를 개발하고자 하였다. 선행연구 분석을 통해 수학불안의 하위 요인을 설정하였으며 각 요인에 해당하는 문항을 제작하였다. 두 번의 파일럿 검사를 통해 문항의 적합성 및 타당도를 분석하여 일부 문항을 수정하였다. 수정된 문항을 사용하여 중학교 학생 255명을 대상으로 본 검사를 실시하였고, 246명의 학생을 대상으로 검사도구의 타당도와 신뢰도를 확인하였다. 최종 개발된 검사도구는 하위 요인 6개, 총 36개의 문항으로 구성되었으며, 수학불안의 정도에 대한 준거를 함께 제시하여 학생의 수학불안에 대한 정보를 학생과 교사, 학부모에게 제공하고자 하였다.

• 한국수학교육학회지시리즈A:수학교육
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• 제63권2호
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• pp.209-231
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• 2024

4차 산업혁명과 인공지능의 발전으로 교육 분야에서 많은 변화가 일어나고 있다. 특히, 인공지능을 기반으로 하는 교육의 중요성이 강조되고 있다. 이러한 흐름에 따라 본 연구에서는 고등학교 수학에서 딥러닝 예측을 이용한 통계교육 프로그램을 개발하고 이러한 통계적 문제해결 과정 중심의 통계교육 프로그램이 고등학생들의 통계적 소양 및 컴퓨팅 사고력에 미치는 영향을 고찰하고자 한다. 먼저, 본 연구에서는 고등학교 수학에 적용할 수 있는 딥러닝 예측을 이용한 통계교육 프로그램을 개발하였고, 이를 실제 수업상황에 적용하여 분석하였다. 분석 결과, 학생들은 자료가 어떤 맥락에서 생성되고 수집되었는지 경험함으로써 맥락에 대한 이해도가 향상되었으며, 다양한 데이터셋을 탐색하고 분석하는 과정에서 자료의 변이성에 대한 이해도가 높아졌고, 자료의 신뢰성을 검증하는 과정에서 자료를 비판적으로 분석하는 능력을 보였다. 통계교육 프로그램이 고등학생들의 컴퓨팅 사고력에 미치는 영향을 분석하고자 대응 표본 t-검정 시행하였고, 수업 전과 후의 컴퓨팅 사고력 (t=-11.657, p<0.001)은 통계적으로 유의한 차이가 있음을 확인하였다.