• 한국수학교육학회지시리즈A:수학교육
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• 제47권1호
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• pp.27-47
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• 2008

In this paper, we study the effect of writing activity as mathematical communication on the students's mathematics achievement, learning attitude, and mathematical tendency. For this purpose, we construct a experimental class and then analyze the students' change in those aspects after applying three-divided-note writing activity and colleague feedback on their works those students are in the experimental class. As a result of the experiment, we find that three-divided-note writing activity and colleague feedback made some significant changes on the students achievement in mathematics, learning attitude, but does not affect on mathematical tendency. We also offer some suggestions for further research. Firstly, the mathematical communication ability must be stressed in mathematics education. For this purpose, we need to develop the teaching and the evaluation method to use not only writing but also reading, speaking, and listening skills so that many teachers can apply this method easily to their classes. Second, we need to fix some realistic problems such as fair evaluation , the numbers of students per class, the numbers of lesson, and too much extra-work, and so on. Thirdly, we suggest to explore some methods for extending three- divided-note writing activity to evaluate mathematical essay and to study educational effects of colleague feedback on mathematics performance assessment.

• 한국수학교육학회지시리즈A:수학교육
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• 제57권2호
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• pp.111-136
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• 2018

This study suggests a framework for analyzing items based on the characteristics, and shows the relationship among the characteristics, difficulty, percentage of correct answers, academic achievement and the actual mathematical problem solving competency. Three mathematics educators' classification of 30 items of Mathematics 'Ga' type, on 2017 College Scholastic Ability Test, and the responses given by 148 high school students on the survey examining mathematical problem solving competency were statistically analyzed. The results show that there are only few items satisfying the characteristics for mathematical problem solving competency, and students feel ill-defined and non-routine items difficult, but in actual percentage of correct answers, routineness alone has an effect. For the items satisfying the characteristics, low-achieving group has difficulty in understanding problem, and low and intermediate-achieving group have difficulty in mathematical modelling. The findings can suggest criteria for mathematics teachers to use when developing mathematics questions evaluating problem solving competency.

• 한국수학교육학회지시리즈A:수학교육
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• 제50권1호
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• pp.103-118
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• 2011

The study examined whether the relation between mathematics self-efficacy and mathematics achievement was partially mediated by the learning strategies, using latent growth model analyses. It was also examined the auto-regressive, cross-lagged (ARCL) panel model for testing the stability and change in the relation of mathematics self-efficacy and learning strategy over time. The study analyzed the first-year to the third-year data of the Korean Educational Longitudinal Survey (KELS). The result of ARCL panel model analysis showed that earlier mathematics self-efficacy could predict later learning strategy use. There were linear trends in mathematics self-efficacy, learning strategy, and mathematics achievement. Specifically, mathematics achievement was increased over the three time points, whereas mathematics self-efficacy and learning strategies were significantly decreased. In the analyses of latent growth models, the mediating effects of learning strategies were overall supported. That is, both of initial status and change rate of rehearsal strategy partially mediated the relation of mathematics self-efficacy and mathematics achievement. However, in elaboration and meta-cognitive strategies, only the initial status of each variable showed the indirect relationship.

• 한국수학교육학회지시리즈A:수학교육
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• 제52권3호
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• pp.303-317
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• 2013

Recently in South Korea, various methods are followed in decreasing educational gap between region and social classes through school education. The National Assessment Educational Achievement(NAEA) intends to strengthen responsibility of school education and manage quality of curriculum. Besides, the NAEA intends to bridge achievement gap which is one of educational gaps by grasping the characteristics of academic ability to guarantee basic academic ability. There is not much research about the educational gap among regional scales. Therefore in this study, to examine the achievement characteristics among regional scales closely, we analyse the 2010, 2011 NAEA results in elementary mathematics subject and explore characteristics of items which have sharp differences between local population sizes. The results of the analysis has been showed that the educational gap between 'big-sized cities' and 'small and midium-sized cities' has been increased, but the overall educational gap among regional scales has been decreased.

• 한국학교수학회논문집
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• 제5권2호
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• pp.47-57
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• 2002

The purpose of this study is to investigate the effects of a mathematics basis underachiever program on a mathematics achievement and mathematics attitudes. For this investigation, twenty eight-grade students as an experimental group were trained in a mathematics basis underachiever program by trained teachers in a middle school classroom for a period of 8 weeks. Twenty eight-grade students in another middle school, serving as a control group. Both groups were given a pretest and a posttest to check the mathematics achievement inspection tool(Likert-type Mathematics Attitude Survey; LTMAS) and a mathematics attitude inspection tool(KEDI, 2001). In the analysis of data Frequencies, percentiles, t-test were used. The results of the study are summarized as follows; First, the results showed that the experimental group demonstrated significantly higher differences than the control group in the mathematics achievement components of inequality equation, figure area and the whole in a mathematical achievement(p<.05). Second the results showed that the experimental group demonstrated significantly higher differences than the control group in the mathematics attitude components of positive mathematics attitude, negative mathematics attitude and the whole in a mathematical attitude(p<.05).

• 한국수학교육학회지시리즈A:수학교육
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• 제39권1호
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• pp.11-20
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• 2000

Compared with other subjects, mathematics has great differences in achievement. In hope of solving this problems, most schools the level-movement learning. Although they say it may have some effect because of its homogeneous group, the level groups still have differences in achievement in their students abilities. So, this study aims to present an appropriate tasks for the advanced intermediate and beginner groups and to help self-directed learning by selecting an appropriate tasks for the students' own level. To achieve thiese goals, a great deal of level tasks were developed and given to the students. After lettins them an select appropriate tasks for their own level and perform self-directed teaming, the tasks were measured carefully for their interest attitude and achievement in learning. Consequently, we tried a new method to improve uniformity and to turn teacher-centered learning into student-centered teaming. The following is the conclusion to this study. First self-directed teaming based on the selection of level tasks has meaningful effects on learning achievement in mathematics, especially for the beginner group. Second though the above method did not improve an interest for mathematics, but was very effective in the improvement of learning attitudes.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제25권2호
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• pp.99-115
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• 2022

This study examined difficulties middle school students have in learning mathematics and proposed a flipped classroom consisting of Khan Academy activities, small-group problem solving, and mathematical modeling to help improve their learning. A mixed-method approach was used to identify difficulties students have in learning mathematics, explore how the flipped classroom helped them reduce the learning difficulties identified, and examine if there were differences in students' mathematics achievement and their affective characteristics after participating in the flipped classroom. Qualitative analyses showed that students had difficulties in understanding mathematical concepts and finding effective ways to learn as well as negative views towards learning mathematics. This study also found that each activity of the flipped classroom had a different impact on student learning. Before class, the Khan Academy activities were most likely to help students understand mathematical concepts. In class, small-group problem solving activities were most helpful for students who had trouble finding effective learning methods and environments. Mathematical modeling activities were most likely effective in changing students' negative views towards mathematics. A quantitative analysis showed that the flipped classroom not only significantly improved the students' mathematics achievement, but also positively affected their confidence and motivation and how much they valued learning mathematics.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제26권3호
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• pp.235-252
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• 2023

We investigated the classification of learner groups for students' mathematical modeling competency and analyzed the characteristics in each profile group for each country and variable using PISA 2012 data from six countries. With a perspective on measuring sub-competency, we applied the latent profile analysis method to student achievement for mathematical modeling variables - Formulate, Employ, Interpret. The findings showed the presence of 4-6 profile groups, with the variables exhibiting high and low achievement within each profile group varying by country, and a hierarchical structure was observed in the profile group distribution in all countries, interestingly, the Formulate variable showed the largest difference between high-achieving and low-achieving profile groups. These results have significant implications. Comparison by country, variable, and profile group can provide valuable insights into understanding the various characteristics of students' mathematical modeling competency. The Formulate variable could serve as the most suitable predictor of a student's profile group and the score range of other variables. We suggest further studies to gain more detailed insights into mathematical modeling competency with different cultural contexts.

• 대한수학교육학회지:학교수학
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• 제15권4호
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• pp.759-783
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• 2013

학문적 수학으로부터 학교수학으로의 교수학적 변환 과정에서 교육과정과 교과서는 큰 비중을 차지한다. 2009 개정 교육과정에 따른 수학과 교육과정이 적용되기 시작한 현 시점에서 교육과정과 교과서의 연계성에 대한 분석은 중요한 과제이며, 특히 수학과에 새로 도입된 학년군제를 고려할 때 더욱 그러하다. 학년군제는 교육과정 운영상의 유연성뿐만 아니라 수학과 교과 내용의 구성에도 영향을 미쳐 학년군에 따른 성취기준은 학년제일 때에 비해 다소 통합적인 선정이 불가피하였고, 따라서 통합적으로 진술된 교육과정 성취기준이 빠지지 않고 교과서에 담겨져 교육과정의 의도대로 구현되었는가를 파악할 필요가 있다. 본 연구는 교육과정과 교과서의 연계성 파악을 위해 1~2학년군을 대상으로 교육과정 성취기준에 따른 교과서 분석, 교과서 소단원별 학습목표에 따른 성취기준과의 연계 분석, 용어와 기호와 관련한 교과서 분석, 수학적 과정과 관련한 교과서 분석을 실시하고, 그 결과에 기초한 교수학적 논의로부터 교육과정 및 교과서 개발을 위한 시사점을 제안한다.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제32권3호
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• pp.385-406
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• 2018

본 연구에서는 수학적 문제제기 활동을 반영한 수학 수업이 고등학교 1학년 학생들의 수학 학업 성취도 및 수학 교과에 대한 정의적 특성에 미치는 영향에 대해서 알아보았다. 본 연구는 이질통제집단 설계(nonequivalent control group design)를 통해 고등학교 1학년 2개 학급의 81명의 학생들을 대상으로 총 45차시의 정규 수학 수업 시간에 이루어졌다. 연구 결과에 의하면, 수학적 문제제기 활동을 반영한 수업 방식이 전통적인 문제해결에 중점을 둔 수업 방식보다 학생들의 수학 학업 성취 및 수학 교과에 대한 정의적 특성에 보다 긍정적인 영향을 미치는 것으로 나타났다. 본 연구에서 제안한 문제제기 활동을 반영한 수업은 학생들의 자기성찰적 학습 동기를 유발시킬 수 있었고, 이를 통해 학생들은 학습한 수학적 개념에 대한 이해를 보다 확고히 할 수 있는 것으로 나타났다. 이와 더불어 문제제기 활동은 학생들의 문제해결력, 수학적 의사소통 능력, 수학적 사고력 발달에도 긍정적인 영향을 미친 것으로 나타났다. 정의적 특성과 관련해서는 본 연구에서 제안한 수학적 문제제기 활동은 학생들의 수학 교과에 대한 흥미 향상에 매우 효과적인 전략으로 나타났다.