• 한국수학교육학회지시리즈D:수학교육연구
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• 제16권3호
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• pp.177-194
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• 2012

What strategies are used to help students understand quadratic functions in mathematics classroom? In specific, how does Chinese teacher highlight a connection between algebraic representation and graphic representation? From October to November 2009, an experienced teacher classroom was observed. It was found that when students started learning a new type of quadratic function in lessons, the teacher used two different teaching strategies for their learning: (1) Eliciting students to plot the graphs of quadratic functions with pointwise approaches, and then construct the function image in their minds with global approaches; and (2) Presenting a specific mathematical problem, or introducing conception to elicit students to conjecture, and then encouraging them to verify it with appoint approaches.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제24권3호
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• pp.157-174
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• 2021

본 연구는 한 학기 동안의 3학년 수학 수업에서 해당 교실의 사회적 구조를 형성하는 과정을 분석하고 그 속에서 교사와 학생, 학생과 학생 간의 다양한 사회적 상호작용 및 관계를 바탕으로 학습이 이루어지는 과정을 탐색하였다. 탐색 결과, 학기 초반에는 전반적인 사회적 규범의 형성과 함께 생산적인 수학 학습을 위한 여러 가지 기본적인 사회적 구조를 형성하는 데 초점을 두었다. 학기 중반에는 수학 개념에 대한 이해에 중점을 둔 탐구가 나타났으며 학생들의 상호작용에서도 모르는 것을 정확하게 질문하고 무엇을 명확히 설명해야 하는지 인식하였다. 학기 후반에는 수학적 탐구와 더불어 학생들의 개별 성향을 더욱 고려하고 수학을 학습하는 과정에서 지적 용기, 정직, 배려, 협력 등의 학문적 인성에 대해 강조하였다. 본 연구는 이러한 연구 결과를 바탕으로 수업에서 수학적 연결뿐만 아니라 사회적 연결을 충분히 고려하여 보다 의미 있는 수학 수업을 구현하는 데 시사점을 제공하고자 하였다.

• 한국수학교육학회지시리즈A:수학교육
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• 제54권3호
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• pp.283-298
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• 2015

This research is the case study of collaborative mentoring in the professional development of multi-tiered mathematics teacher community. We observed the procedures of mentoring, and contents of mentoring in PD program. For this purpose, we implemented PD program with participant unit composed of 3 or 4 teachers in the same school and total 25 teachers from 4 elementary schools and 4 high schools. Also there were 1 mentor and 1 sub-mentor to support each school. Observed mentoring processes were all recorded and the participants not only were interviewed several times but also wrote reflection notes after meetings. While mentoring PD program was implemented, mentor and mentee had joint responsibility about lessons implemented by mentee. Furthermore It showed possibility of change of teacher learning culture, learning culture of community. It means that teacher would improve their professionalism more effectively within teacher community instead of individual. 4 reflection contents was founded in collaborative mentring; 1)purpose of mathematics education, 2)motivation and connection between previous lecture and present lecture 3)lack of mathematical contents in lesson 4)discourse between teacher and students.

• 한국지구과학회지
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• 제38권5호
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• pp.378-392
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• 2017

Teacher quality is a topic of international concern, as it impacts student learning and teacher preparation. This study compared the undergraduate secondary science teacher preparation programs from two universities in Korea with those of Oregon, USA. We examined the programs' structural curricular coherence, conceptual curricular coherence, and curricular balance. Structural curricular coherence was determined by examining the overarching goals of the institutions' programs, the organization of the programs of study in terms of meeting those goals, and outside bodies of evidence. All universities were in structural coherence for various reasons. Conceptual curricular coherence was determined by examining students' perceptions of the connection between their preparation and their clinical practice. In case of Korea, most students from both universities were not satisfied with their practical preparation. In the US, the students from both institutions felt well prepared to transition to inservice teaching. To determine curricular balance, we examined the institutions' preparation programs looking at the credit hours taken in the four main areas of the teacher knowledge base: GPK (General Pedagogical Knowledge), SMK (Subject Matter Knowledge), PCK (Pedagogical Content Knowledge), and CK (Contextual Knowledge). The total credit hours taken in each category was very similar by country but the application and field component in the USA was far greater than those of Korea where the focus was heavily on SMK and PCK. The main reason for these may be the nations' licensing and employment processes.

• 한국수학교육학회지시리즈A:수학교육
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• 제51권4호
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• pp.455-469
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• 2012

Given the importance of mathematical connections in instruction, this paper analyzed the objects and the methods of mathematical connections according to the lesson flow featured in 20 elementary lessons selected as effective instructional methods by local educational offices in Korea. Mathematical connections tended to occur mainly in the introduction, the first activity, and the sum-up period of each lesson. The connection between mathematical concept and procedure was the most popular followed by the connection between concept and real-life context. The most prevalent method of mathematical connections was through communication, specifically the communication between the teacher and students, followed by representation. Overall it seems that the objects and the methods of mathematical connections were diverse and prevalent, but the detailed analysis of such cases showed the lack of meaningful connection. These results urge us to investigate reasons behind these seemingly good features but not-enough connections, and to suggest implications for well-connected mathematics teaching.

• 한국수학교육학회지시리즈A:수학교육
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• 제53권3호
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• pp.357-381
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• 2014

This study analyzed the cases of three teacher communities participating in an innovative professional development program and clarified the characteristics and the process of lessons for mathematics-oriented convergence that were developed and applied during the program. Each of the teacher communities designed and implemented lessons according to the context of each community and the concept of lessons for mathematics-oriented convergence were developed and refined. The lessons developed by the three teacher communities were characterized as convergence problem posing lessons using technology, convergence of various subject content focused on mathematical concepts through team teaching, and convergence lessons according to students' achievement levels. The program contributed to teacher community activities by proving sustainable professional development in the area of convergence education, a connection between the content of their professional development and the context of the field, and opportunities for active participation in the process of developing and implementing the convergence lessons.

• 한국수학교육학회지시리즈A:수학교육
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• 제63권1호
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• pp.63-83
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• 2024

본 연구의 목적은 2015 개정 수학과 교육과정의 중3 교과서 삼각비 단원에 포함된 과제의 수학적 연결성 구성요소를 분석하고 이에 대한 교사의 인식 및 실천적 방안을 조사하는 것이다. 이를 위하여 중학교 3학년 수학교과서 9종을 대상으로 삼각비 단원에 포함된 수학적 연결성 과제의 특징을 분석하고, 이에 대한 인식과 실천적 방안을 조사하기 위해 예비 연구에서 현직 수학 교사 1인, 본 연구에서 현직 수학 교사 2인을 대상으로 설문지 조사와 인터뷰를 진행하였다. 연구 결과, 중학교 3학년 삼각비 단원에서는 외적 연결성의 과제가 내적 연결성의 과제보다 적은 것으로 나타났다. 또한 교사의 인식 및 실천적 방안에서는 교사의 관점에 따라 과제에 포함된 수학적 연결성에 대한 분석이 다르게 나타났으며, 이에 따른 실천적 방안 또한 다양하게 나타났다. 이러한 연구 결과는 학생들의 효과적인 수학적 연결성 함양을 위해 수학 과제, 교사의 인식, 교사의 실천적 방안 사이의 관계성을 밝혔다는 점에서 의의가 있다고 볼 수 있다.

• 한국생활과학회지
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• 제6권2호
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• pp.133-144
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• 1997

Clothing is considered as a means of self-projection in the childhood and children show clear preference on their own favorite clothing on which their latent identity is reflected. Changing sex-role identity, in particular, in the modern complex society specially affects the clothing behavior of children. The purpose of this study is to investigate the clothing behavior of children in conjunction with sen-role identity and home environment variables. This study will provide fundamental information on the clothing behavior in the childhood and be of help in selecting appropriate clothing in accordance with the variation of sex-role identity. Necessary information for this study was obtained through a questionaire. 'Bem sex-role identity inventory' was used to investigate the effect of sex-role identity and the clothing behavior was studied in conjunction with the factors of conformity, dependence, aesthetics and interest. The subjects of investigation are composed of three hundred male and female elementary school students in the 5th and 6th grades. For the statistical analysis of the collected data, percentage(%), mean value(M), standard deviation(SD) and Pearson's correlation coefficient were calculated and t-test, $x^2$-test, and Duncan's multiple range test were performed. The results form this study are as follows : 1. Sex-role identity shows a little difference according to gender, order of a birth and standard of living. This small difference is shown to be statistically insignificant. 2. In clothing behavior in connection with the sex-role identity, statistically significant trend was not found in typical sex-role identity group. However, clothing behavior in modernistic sex-role identity group exhibits statistically significant results in the factors of dependence, aesthetics and interest at the level of P<.001. 3. As concerns the clothing behavior in connection with gender, boy students show statistically more significant tendency in aesthetics and interest than girls do. However, boy students show statistically more significant tendency in aesthetics than girls do in connection with the standard of living. Although the clothing behavior associated with the level of parents education, mother's age and existence of mother's job shows a little difference in mean values, statistically significant trend was not detected. 4. Clothing behavior of the children shows a meaningful correlation between the factors. 5. Through 3-dimensional variables analysis, it is found that there is no mutual interaction between gender, sex-role identity and standard of living on the clothing behavior. The results from MCA supplementary analysis reveal that there is difference according to the gender, sex-role identity and standard of living.

• 한국정보통신학회논문지
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• 제23권8호
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• pp.917-922
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• 2019

최근 교사 직업에 대한 선호도가 높아짐에 따라 사범대학 및 교육대학의 선호도가 높아지고 있다. 모든 학생들이 교사에 진출 할 수 있는 것이 아니라 졸업 후 교원임용 후보자 경쟁시험이라는 시험을 통과하여야한다. 그러나 인구수 감소에 따른 임용T.O는 매년 줄어들고 있고 경쟁률은 가파르게 오르고 있는 사정이다. 때문에 입학하면서 임용시험에 매진하고자 대학교가 학문을 연구하고 배우는 곳이 아닌 시험을 위한 거대한 학원이 되어가는 중이다. 이에 본 연구에서는 학점뿐이 아니라 학생들의 전반적인 학교생활 및 스터디그룹 활용 여부 등을 종합하여 딥 러닝을 이용한 교원임용 후보자 경쟁시험 합격여부의 연관성을 파악하였다. 합격에 대하여 학과활동 등이 크게 영향을 미치지는 않았고 합격률 예측에 대한 정확도는 대체적으로 70%의 정확성을 보였다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2019년도 춘계학술대회
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• pp.182-185
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• 2019

최근 고용시장의 불안과 맞물려서 교사 직업에 대한 선호도가 높아짐에 따라 사범대학 및 교육대학의 선호도가 높아지고 있다. 그러나 점차 인구수 감소와 맞물려서 교육부에서 발표되는 임용T.O는 매년 줄어들고 있고 그에 비해 입학학생수 및 재수생숫자는 늘어나 경쟁률은 가파르게 오르고 있는 사정이다. 이로 인하여 사범대학에서는 입학과 동시에 임용시험에 매진하고자하여 대학교가 교원 임용후보자 경쟁시험을 위한 하나의 거대한 학원이 되어가는 분위기이다. 이에 본 연구에서는 학점 및 학생들의 전반적인 학교생활 및 스터디그룹 활용 여부 등을 종합하여 딥 러닝을 이용한 교원임용 후보자 경쟁시험 합격여부의 연관성을 파악하여 사범대학 재학생들에게 학교생활의 청사진을 제시하고자 한다.