• Journal of Elementary Mathematics Education in Korea
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• v.15 no.2
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• pp.417-435
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• 2011

Mathematical justification is essential to assert with reason and to communicate. Students learn mathematical justification in 8th grade in Korea. Recently, However, many researchers point out that justification be taught from young age. Lots of studies say that students can deduct and justify mathematically from in the lower grades in elementary school. I conduct questionnaire to know awareness and steps of elementary school students and middle school students. In the case of 9th grades, the rate of students to deduct is highest compared with the other grades. The rease is why 9th grades are taught how to deductive justification. In spite of, however, the other grades are also high of rate to do simple deductive justification. I want to focus on the 6th and 5th grades. They are also high of rate to deduct. It means we don't need to just focus on inducing in elementary school. Most of student needs lots of various experience to mathematical justification.

• Education of Primary School Mathematics
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• v.19 no.4
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• pp.261-276
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• 2016

This study was to investigate the effects of peer mentoring on students' mathematical characters and mathematics achievements in mathematics class. The participants were twenty four 6th grade elementary students at the S school in Sungbuk-Gu, Seoul, Korea. They were divided into 4 groups according to the combination of groups. The researchers analyzed the experimental group and the control group with covariances on the sub-factors of the mathematical characters such as respect, caring, sharing, and openness. However, there were no statistically significant changes. However, with the help of the two analyses on the mathematical logs and the worksheets which had been carried out in advance by the quantitative and qualitative research methods, the researchers investigated how the peer mentoring-applied instructions would change the mathematical characters for each sub-factor in detail. In conclusion, the peer mentoring-applied instructions makes a positive contribution to the students' mathematical character and mathematical academic achievements. We suggest that peer mentoring in mathematics lessons should be adopted in various mathematical ability levels of students.

• Communications of Mathematical Education
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• v.8
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• pp.107-119
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• 1999

본 연구의 목적은 문제중심 수업과 설명식 수업이 학생들의 학업 성취에 미치는 효과를 분석하는 것이다. 본 연구를 통하여 얻은 결과는 첫째, 문제중심 수업과 설명식 수업은 계산 문제의 학업 성취도에 있어서 유의미한 차이가 없었으며, 둘째, 문제중심 수업과 설명식 수업은 적용 문제의 학업 성취도에 있어서 유의미한 차이가 있었다. 본 연구의 결과를 통하여, 문제중심 수업은 계산력을 향상시킬 수는 없었지만, 교사에 의한 통상적인 지도 없이도 계산력은 유지될 수 있음을 보여주었다. 또한, 문제중심 수업은 설명식 수업보다 문제 해결력을 향상시킬 수 있는 교수법임을 시사한다.

• The Mathematical Education
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• v.59 no.4
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• pp.357-371
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• 2020

In the 2015 revised math curriculum, core competencies have been embodied and presented as skills and achievement standards. In this study, I analyzed aspects of the link between competencies, skills and achievement standards in the 2015 revised mathematics curriculum for elementary schools. According to the study, six mathematics curriculum competencies were presented evenly as 'skills' in each content area of elementary school, but reflected some of the sub-components of the curriculum, and some of them were presented as 'skills' but not as 'achievement standards'. In addition, the types of skills reflected in the achievement standards varied greatly by content area, but a few of specific skills such as 'understand' were found to be highly emphasized. Based on this, several implications were derived to further improve the implementation of competencies. First, 'skill' should be presented in a more systematic way and with more validity of extraction. Second, the extent to which competencies are presented in the achievement standards should be discussed. Third, Mathematics skills should be presented differently by grade(cluster) in achievement standards, 'Guidelines for Teaching and Learning' and 'Guidelines for Assesment'. Fourth, competencies related to content shall be presented separately and in detail.

• Journal of the Korean School Mathematics Society
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• v.14 no.4
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• pp.491-518
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• 2011

According to a number of recent studies, Korean students' affective achievement was at much lower level than cognitive achievement, which indicated the needs for nationwide researches. Although a variety of effort was put into finding ways to improve students' affective achievement, few researches focused on teachers was being underway. Thus, this study was conducted with 327 secondary school mathematics teachers in Gyeonggi-do- by survey method to investigate on how teachers feel affective domain in their teaching practice, how much they it into account at class, and what their wills or plans are to put it into action. According to the results, there existed a distinctive gap between teachers and students in affective domain.

• Journal of Educational Research in Mathematics
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• v.21 no.4
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• pp.313-326
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• 2011

The purpose of this study is to analyze changes in gender differences of Korean students in PISA mathematics assessment and investigate possible factors influencing the decrease of gender gap in mathematics performances. According to the results of PISA mathematics assessment, Korea showed significant large gender differences in mathematics achievement in both 2000 and 2003. The gender gap in favor of boys, however, has decreased since 2006. An interesting point from these results is that Korean girls' significant improvement led to the decrease in gender difference in 2006 and 2009 assessment. Based on a review of literature on gender differences in mathematics, possible explanations for the girls' improvement in mathematics achievements are identified as follows: the Korean government policy to encourage and support girls' study in mathematics and science and supportive environments could influence positively girls' attitudes toward mathematics and their mathematics learning; the changes in the mathematics curriculum and textbooks which emphasize similar characteristics to PISA mathematics assessment could affect the girls' improvement by reducing their unfamiliarity with PISA mathematics assessment items.

• Journal of The Korean Association For Science Education
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• v.31 no.8
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• pp.1110-1120
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• 2011

The purpose of this study was to investigate teachers' perceptions of gender differences in students' mathematics and science learning ability. The sample included 289 elementary and secondary school gifted teachers. The teachers filled out the survey, asking their perceptions of gender differences in mathematics and science learning ability, as well as of the reasons of the differences. The results were as follows: 1) 65% of the teachers responded that gender differences existed in students' mathematics and science learning ability, 2) 63% of the teachers perceived that the differences began around higher elementary or middle school ages, 3) 57% of the teachers thought that gender differences existed in the high-achieving student group. Teachers perceived the reasons of differences were 1) differences in inborn ability, 2) the different expectation, and 3) the different ways of parental cares. Since teachers' perceptions of students' ability would impact teachers' attitudes on students, implications and suggestions were included in this article to provide teachers insights that promote students' better learning.

• Communications of Mathematical Education
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• v.15
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• pp.287-292
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• 2003

본 연구는 중학생을 대상으로 협동 학습에서 사용하고 있는 기존의 집단 구성과는 달리 학생들의 학습 양식에 따라 집단을 구성하여 협동 학습의 효과성을 보이고자 하였다. 학습양식(Learning Style)에 따라 집단을 구성한 협동 학습의 결과는 다음과 같다. 첫째, 학습양식에 따라 구성한 협동 학습 집단( I, II, III, IV)이 일반학습 집단(V)에 비하여 수학 성취도에 있어서 유의한 효과를 보였다(p<.001). 둘째, 학습양식에 따라 구성한 협동 학습 집단( I, II, III, IV)이 일반학습 집단에 비하여 수학에 대한 긍정적인 태도로의 변화가 있었다(p<.001).

• Journal of Elementary Mathematics Education in Korea
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• v.23 no.3
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• pp.347-363
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• 2019

The purpose of this study was to investigate the effects of communication - oriented mathematical writing strategies on students' mathematics achievement and mathematical propensity. In order to achieve the purpose, three types of communicative math writing learning strategies such as writing their own thoughts and feelings, writing problem solving process, and explaining the mathematical concepts. In the comparative group, general lessons based on textbooks and tutorials were conducted. As the results, the students in the experimental group showed a significant improvement in mathematics achievement and a positive effect on the mathematical propensity as compared with the comparison group.

• Education of Primary School Mathematics
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• v.14 no.3
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• pp.225-236
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• 2011

This study basically investigated the mathematics curriculum of Finland. The curriculum is similar with the 2009's revised mathematics curriculum of Korea in terms of formats, but is different in terms of contents. The mathematics curriculum of Finland is organized into grade bands: grade 1-2, grade 3-5, grades 6-9. And also, it provides the purpose of each grade bands, the purpose of each content areas, the expectation of assessment tested at the end of grade bands.