• 한국수학교육학회지시리즈D:수학교육연구
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• 제11권2호
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• pp.87-100
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• 2007

This paper is intended to document the development of the Mathematics across the Curriculum (MAC) movement, following a mathematics problem solving model. Of course, just as new, related problems often arise after we have completed the solution of a current mathematics problem, so too, many questions remain regarding the future of MAC. Although preliminary assessments have been favorable, no broad-based evaluation of the impact of MAC has been conducted. To what extent has the promise of increased student understanding of mathematics and its connections to other disciplines been realized? What can be done to overcome logistical obstacles preventing instructors from working together in real schools settings? Are changes in institutional culture and relationships among academics merely transitory? Is the development of a strong base of curricular materials forthcoming? In other words, will MAC reach a level of educational permanence, or ultimately be discarded as another interesting, but unmanageable instructional fad?

• 한국수학교육학회지시리즈D:수학교육연구
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• 제8권3호
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• pp.123-144
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• 2004

There is a tradition of advocating the 'two basics' (basic knowledge and basic skills) in Chinese mathematics education. The direct consequence is that Chinese students are able to produce excellent performance in the international mathematics examinations and outstanding results in the international mathematics competitions. In this article, we will present why and how Chinese teachers teach the 'two basics,' and how combine the pupil's creativity with their 'two basics.' Open ended problem solving is a way to meet the goal. The following topics will be concerned: Culture background; the speed of computation; 'make perfect' ; Efficiency in classroom; Balance between 'two basics' and personal development. In Particular, Chinese mathematics educators pay more attentions to the link between open ended problem solving and the 'two basics' principal.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제20권1호
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• pp.31-38
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• 2016

WHAT we teach, and HOW students experience it, are the primary factors that shape students' understanding and beliefs of what mathematics is all about. Further, students pick up their sense of mathematics from their experience with it. We have seen the results of the approach to "break the subject into pieces and make students master it bit by bit. As an alternative, we strive to create a teaching environment in which students are DOING mathematics and thereby engender selected aspects of "mathematical culture" in the classroom. The vehicle for doing this is the so-called Japanese Open-ended approach to teaching mathematics. We will discuss three aspects of the open-ended approach - process open, end product open, formulating problems open - and the associated approach to assessing learning.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제1권1호
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• pp.23-34
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• 1997

For the balanced realization of these values of mathematical culture, we need to innovate mathematics classrooms, for which we need to make use of portfolio assessment. First, portfolio assessment can be regarded as a method of synthesizing a variety of resources for systematic evaluation. Second, portfolio assessment can be used as a tool of building up learners' positive attitude toward mathematics, by which we can identify the latent possibility of learners' development and help them develop confidence in mathematics. Third, portfolio assessment can play an important role as a tool for exploring the method of teaching and learning in which learners recognize the value of mathematics and are interested in mathematical activities, as we have seen in the report on the Gulliver's Travels Project.

• 한국수학사학회지
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• 제32권2호
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• pp.47-59
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• 2019

Hua Loo-Keng(华罗庚, 1910-1985) is one of well-known prominent Chinese mathematicians. While Waring problem is one of his research interests, he made lots of contributions on various mathematical fields including skew fields, geometry of matrices, harmonic analysis, partial differential equations and even numerical analysis and applied mathematics, as well as number theory. He also had devoted his last 20 years to the popularization of mathematics in China. We look at his personal and mathematical life, and consider the meaning of his activity of popularizing mathematics from the cultural perspective to understand the recent rapid developments of China in sciences including mathematics and artificial intelligence.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제25권1호
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• pp.91-97
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• 2022

Competent mathematics teachers need to implement the responsive teaching strategy to use student thinking to make instructional decisions. However, the responsive teaching strategy is difficult to implement, and limited research has been conducted in traditional classroom settings. Therefore, we need a better understanding of responsive teaching practices to support mathematics teachers adopting and implementing them in their classrooms. Responsive teaching strategy is connected with teachers' noticing practice because mathematics teachers' ability to notice classroom events and student thinking is connected with their interaction with students. In this regard, this review introduced and examined a study of the relationship between mathematics teachers' noticing and responsive teaching: In the context of teaching for all students' mathematical thinking conducted by Kim et al. (2017).

• East Asian mathematical journal
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• 제39권2호
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• pp.251-270
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• 2023

This study examined what questions posed, and for arranging the matters, what decisions made, what practices put into by elementary preservice teachers during his or her enacting and reflecting mathematics teaching. Analysis of the study focused on the mathematics instructions practiced by four participants in practicum for senior students. Their own questions raised by each one in the instructional designs, performances, and reflections were picked out and categorized by five dimensions of mathematics instruction; the nature of classroom tasks, the role of the teacher, the social culture of the classroom, mathematical tools as learning supports, and equity and accessibility. Their instructional decision-makings and action-takings for answering to these questions were analised.

• Journal of Microbiology and Biotechnology
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• 제27권7호
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• pp.1306-1315
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• 2017

DDT (1,1,1-trichloro-2,2-bis(4-chlorophenyl) ethane) is one of the organic synthetic pesticides that has many negative effects for human health and the environment. The purpose of this study was to investigate the synergistic effect of mixed cutures of white-rot fungus, Pleurotus ostreatus, and biosurfactant-producing bacteria, Pseudomonas aeruginosa and Bacillus subtilis, on DDT biodegradation. Bacteria were added into the P. ostreatus culture (mycelial wet weight on average by 8.53 g) in concentrations of 1, 3, 5, and 10 ml ($1ml{\approx}1.25{\times}10^9$ bacteria cells/ml culture). DDT was degraded to approximately 19% by P. ostreatus during the 7-day incubation period. The principal result of this study was that the addition of 3 ml of P. aeruginosa into P. ostreatus culture gave the highest DDT degradation rate (approximately 86%) during the 7-day incubation period. This mixed culture combination of the fungus and bacteria also gave the best ratio of optimization of 1.91. DDD (1,1-dichloro-2,2-bis(4-chlorophenyl) ethane), DDE (1,1-dichloro-2,2-bis(4-chlorophenyl) ethylene), and DDMU (1-chloro-2,2-bis(4-chlorophenyl) ethylene) were detected as metabolic products from the DDT degradation by P. ostreatus and P. aeruginosa. The results of this study indicate that P. aeruginosa has a synergistic relationship with P. ostreatus and can be used to optimize the degradation of DDT by P. ostreatus.

• 대한수학교육학회지:수학교육학연구
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• 제26권1호
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• pp.103-119
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• 2016

교육과 문화의 여러 방면에서 융합과 통섭이 중시되고 있다. 이러한 흐름에 따라 2015 개정 교육과정은 인문학적 상상력과 과학기술 창조력을 갖춘 창의융합형 인재의 양성을 표방하였다. 그러나 인문학적 상상을 비롯한 '상상'에 대한 수학교육적 관점의 연구가 이루어지지 않아 상상을 도입한 창의융합적 수학교육에 대한 구체적인 논의가 어려운 상황이다. 이 논문에서는 고대부터 현대에 이르는 여러 학자들의 견해를 통해 상상의 개념을 구체화하고, 이러한 의미에서의 상상이 수학의 실제에 관여하는 양상을 살펴보았다. 이를 바탕으로 상상을 동원한 수학 교수학습의 모습과 가능성 및 그 인문 사회적 의미 등을 논의하였다.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제37권3호
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• pp.369-392
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• 2023

수학교육 형평성은 문화, 인종 등과 같은 요인으로 야기되는 사회적 불평등과 수학교육의 관계에 주목한다. 수학교육 형평성은 최근 수학교육의 중요한 화두 중 하나로 인지되고 있으며, 미래 사회를 위한 수학교육의 방향을 설정하는 중요한 근거가 될 수 있다. 이에 본 문헌 연구에서는 국내외 선행연구를 검토하여 국내 수학교육 연구에 유의미한 시사점을 제공하고자 한다. 본 연구에서는 국내외 195편의 문헌을 검토하여 수학교육 형평성의 개념과 의의를 분석하였다. 문헌 검토를 위해 본 연구에서는 연구 문제를 중심으로 선정된 선행연구를 범주화하여 수학교육 형평성과 관련한 기존 논의를 정리하였다. 이때 수학교육 형평성에 관한 연구 문제는 수학 교사, 수학교육과정, 수학 교실, 수학 평가, 수학 교실을 둘러싼 사회·문화적 배경으로 구분하였다. 본 연구의 분석 결과는 수학교육 형평성에 관해 국내외에 논의된 내용을 확인할 기회를 넘어 국내 수학교육 연구자에게 새로운 연구 방향과 방법을 제시할 수 있을 것으로 기대된다.