• Journal of the Korean School Mathematics Society
• /
• v.11 no.1
• /
• pp.117-132
• /
• 2008

This paper has analyzed the problem of the inequality unit in 7th National curriculum 8-Ga stage from the following points. First, in respect to the written questions of the inequality unit over every textbook of 7th National curriculum, how are they allocated according to subject matters and what are their weak points? Second. how many of them are related to the authentic daily life or other subjects and what kind of subjects are they? Third, what are the problems related to the authentic daily life situation or what are the problems that have some inter-sentential errors, and what kinds of measures for their improvement can be taken? In keeping with view points above, we have analyzed the contents in current 16 different textbooks on th basis of their subject matters and especially put the emphasis on the relation to daily life and other subjects. Consequently, we found there are many textbooks that do not include various subject matters and that can not be related to various other subjects. It is necessary to connect mathematics to various daily life matters and other subjects to improve students' creativity and to make students understand the practicality of mathematics.

• Communications of Mathematical Education
• /
• v.27 no.3
• /
• pp.179-203
• /
• 2013

The purpose of this study was to discuss the example that developed geometry model textbook based on storytelling using real-life context. To achieve this purpose, we first elaborated the meaning of the textbook based on storytelling with real-life context, and then we discussed the outline of the story and the summary of each lesson. This study defined the storytelling textbook with real-life context as the textbook consisting of activities that explored and organized mathematical concepts by using real-life situations as materials of stories. The geometry textbook we developed employed two real-life materials, a map and a set square: we used a map for the coordinate geometry and a set square for the equation of a line. To attract students' interest, we introduced confrontation between a teacher and two students and a villain. We implemented experimentation with the textbook based on storytelling in order to verify its validity. The participants were 25 students that were enrolled in a high school in Seoul. Among them, 17 participants were surveyed. Students' answers from the survey questionnaire suggested that the geometry textbook we developed based on storytelling helped them learn mathematics and that the instruments such as a map and a set square helped them understand mathematical concepts. However, their opinion implied that the story of the textbook needed to be improved so that the story reflected more realistic contexts that were familiar with students.

• Journal of The Korean Association For Science Education
• /
• v.25 no.7
• /
• pp.754-764
• /
• 2005

The purpose of this study was to develop experimental modules that would enhance science the process skills of secondary school students. The modules were composed of real-life materials on the subjects of light, movement, force, water, and heat. Each module consisted of four to six activities, and provided student worksheets and teacher guides. Physics teachers were invited to a workshop specially held to identify whether these modules would befit the improvement of student science process skills. A majority of the teachers believed the modules to be valuable instructional materials which might enhance student science process skills in the Korean secondary school science classes.

• School Science Journal
• /
• v.12 no.1
• /
• pp.59-74
• /
• 2018

This study was to develope a high school education program for students to understand features of organisms and classify them using everyday life materials, which are in 'Biodiversity and Evolution' unit of Biology II subject, by applying IMSA(Illinois Mathematics & Science Academy) problem based learning. The program made students perform IMSA problem based learning stages for 3 periods and do homework. Students' task was that they, as a curator in the Museum of Natural History, had to make an exhibition panel which explains 3 domains and 6 kingdoms by using items in a supermarket. The program was revised through a validity test of experts and high school teachers in biology education. It was completed by applying to 77 high school students in Incheon. A rubric was devised to assess students' product as well. The students showed an interest in learning and understood learning content well. After class, there was a long term retention, in which they try to apply knowledge to their everyday life. A supermarket has an advantage in that it is a place where students could easily get access without time limit and meet diverse organisms. In addition, presenting a specific place could provide creative thinking opportunity for students. This study has significance for learning through connecting biology classification with everyday life materials

• 한국지구과학회:학술대회논문집
• /
• 2005.09a
• /
• pp.289-290
• /
• 2005

• 한국경영정보학회:학술대회논문집
• /
• 2007.11a
• /
• pp.429-434
• /
• 2007

이 연구는 공공부문이 구축/관리중인 지식정보자원의 시민활용 실태를 점검하고 유비쿼터스 기술을 활용한 지식정보자원의 시민활용성 제고방안 모색을 목적으로 한다. 이를 위하여 부산광역시의 시민 200 명을 대상으로 설문조사를 실시하여 지식정보자원에 대한 인지도/활용도/활용장애요인과 유비쿼터스 기술에 대한 인지도/활용도/유용성을 조사하였고, 향후 유비쿼터스 기술을 활용한 공공행정, 교육학술, 사회문화/복지, 생활경제 등 4 대부문 16 개분야 32 개의 지식정보자원에 대한 시민활용 의향을 분석하였다. 분석결과 지식정보자원에 대한 인지도와 활용도는 보통보다 낮은 수준에 있으며, 그 이유로는 개인정보유출에 대한 불안, 지식정보자원 소재에 대한 정보부족, 지식정보자원 활용 비용의 부담 및 활용의 불편 등으로 나타났다. 향후 유비쿼터스 기술을 활용한 지식정보자원 활용의향에 대해서는 실생활과 밀접한 관련을 갖고 있는 교통/기상정보, U-Care 및 U-Health 정보, 금융, 공연예술, 관광여가 등의 정보에 대해서는 높은 의향을 보이나, 실생활과 직접 관련이 적고 전문적인 능력이나 관심이 요구되는 행정정보공개, 정책참여, U-학술연구 등에 대해서는 낮은 의향을 보이는 것으로 나타났다.

• Journal for History of Mathematics
• /
• v.22 no.4
• /
• pp.53-66
• /
• 2009

The east-asian mathematics is highly evaluated in mathematics education. In this paper, we search the geometric problems of east-asian mathematics in high school textbooks and various examinations and investigate how to use such problems. We also confirm that the geometric problems of east-asian mathematics can be widely used as real life materials for introducing new mathematical topics, real life applications for mathematical topics, and valuable source for mathematical discourse.

• Journal of The Korean Association For Science Education
• /
• v.26 no.1
• /
• pp.16-24
• /
• 2006

The purpose of this study was to compare student-student verbal interaction from two type's experiments; problem-solving and task-solving. For this study, five 3rd grade middle school students were selected and their verbal interactions recorded via voice and video; and later transcribed. The student-student verbal interactions were classified as questions, explanations, thoughts, or metacognition fields, which were separated into deep versus surface learning approaches. For the problem-solving experiment, findings revealed that the number of verbal interactions is more than doubled and in particular, the number of verbal interactions using deep-approach is more than quadrupled from the point of problem-recognition to problem-solution. As for the task-solving experiment, findings showed that verbal interactions remained evenly distributed throughout the entire experiment. Finally, it was also discovered that students relied upon a more deep learning approach during the problem-solving experiment than the task-solving experiment.

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 1993.04b
• /
• pp.44-48
• /
• 1993

산업현장에서부터 실생활용품에 이르기까지 각종판재를 소재로하여 제작하는 가공품은 종류나 수가 매우 많다고 할수 있다. 이러한 제품들을 제작 하기 위해 여러단계의 성형 공정을 거치게 되며 원만한 성형공정 을 수행하기 위한 적절한 판재성형 제어방법으로써 다이곡률 반경의 변화나 블랭크홀딩가압정도의 부분적 변화로 드로잉률을 향상시키는 방법도 있으나 이보다 판재의 성형공정 제어방법에서 공구사이 상하에 비드 를 설치하여 판재를 성형할 경우 성형공정후 제품의 두께 분포가 비교적 균일해지고 드로잉의 마찰저항을 부분적으로 증가시키며 판재성형중 미끄럼 저항의 균형을 이루어 성형시킬 판소재가 절감도며 또한 성형중 주름을 억재하여 드로잉률을 향상시킨다. 다른 방법에 비해 비드는 설차가 간단해서 적절한 형상의 bead set을 선정하여 산업현장에서 실제 사용하고 있으며 또한 소재가 비드를 통과한후 탄성역에서 소성역으로 전환되기에 성형공정 이후 스프링백 현상으로인한 제품형상의 치수가 변하는 현상을 방지하는 효과도 기대할수 있다. 따라서 본 연구에서는 자동차용판재인 아연도금피막 강판으로 실험한 결과와 비드 이론식을 고찰해 보고자 한다.

• Education of Primary School Mathematics
• /
• v.25 no.4
• /
• pp.297-312
• /
• 2022

Word problems can lead learners to more meaningfully learn mathematics by providing learners with various problem-solving experiences and guiding them to apply mathematical knowledge to the context. This study attempted to provide implications for the textbook writing and teaching and learning process by examining the word problem of elementary mathematics textbooks from the perspective of practical context. The word problem of elementary mathematics textbooks was examined, and elementary mathematics textbooks in the United States and Finland were referenced to find specific alternatives. As a result, when setting an unnatural context or subject to the word problem in elementary mathematics textbooks, artificial numbers were inserted or verbal expressions and illustrations were presented unclearly. In this case, it may be difficult for learners to recognize the context of the word problem as separate from real life or to solve the problem by understanding the content required by the word problem. In the future, it is necessary to organize various types of word problems in practical contexts, such as setting up situations in consideration of learners in textbooks, actively using illustrations and diagrams, and organizing verbal expressions and illustrations more clearly.