• 대한가정학회지
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• 제43권5호
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• pp.117-130
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• 2005

Western clothing is adjusted to the figures of the human body unlike Korean traditional clothes. For this adjustment, we need a method, known as dart, to reasonably adjust a wide circumference to curves of the human body. So far, there has been some research in the aspect of clothing engineering on how to decide darts of skirts or trousers, but no theoretical research has yet been conducted on how to decide the number and amount of dart, which has caused difficulties in beginners' understanding of dart. Futhermore, there is no consistent drawing method for the number and amount of darts in existing teaching and teaming materials. Therefore, to develop teaching and teaming methods for darts, this study identified the amount and number of darts for waist girth of 66-72cm and a hip girth of 86-102cm. When the difference between the waist girth and the hips girth, including margins, is above a minimum of 26cm, two darts can be designed, but when the difference is below 24cm, one dart is necessary. The amount of darts increases by 0.5cm for every 2cm increase of the hip girth to the waist girth. In addition, as darts become longer, the cutting of the waist line becomes smoother. For one, rather than two, darts the curve of the waist line is steeper. Based on the above results, it was assured that when belts are curved through adjustment to the waist line of skirts or slacks, their composition can be stable. Therefore, in basic teaching about slacks and skirts, the number and amount of the darts should be designed according to the difference between the girths of the waist and the hip. This difference should be a minimum of 24cm, but if it is below 24cm, the number of darts needed is one.

• 대한화학회지
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• 제67권6호
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• pp.462-474
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• 2023

본 연구의 목적은 예비 화학교사가 교육실습에서 경험하는 스트레스를 분석하는 것이다. 이를 위해 예비 과학교사 스트레스 검사 도구를 제작하여, 예비 화학교사 19명을 대상으로 교육실습 전 예상한 스트레스와 교육실습에서 경험한 스트레스를 조사하였다. 교육실습 전과 후에 온라인으로 실시한 설문 조사의 결과는 기술 통계를 수행하였고, 예비 화학교사의 스트레스 검사 결과에 대한 해석은 교육실습 과정에서 작성한 티칭포트폴리오와 면담자료를 활용하여 분석되었다. 연구 결과는 다음과 같다. 첫째, 예비 화학교사들은 교육실습 전 다양한 스트레스를 예상하였으나, 교육실습에서 스트레스를 받는 요인의 수와 스트레스를 받은 예비 화학교사의 수가 대체로 적어졌다. 둘째, 예비 화학교사가 교육실습을 경험한 학교급에 따라 교육실습 전 예상한 스트레스와 교육실습에서 경험한 스트레스의 요인과 스트레스의 정도가 다르게 나타났다. 셋째, 예비 화학교사가 교육실습 과정에서 경험한 스트레스는 성별에 따른 차이는 나타나지 않았다.

• 아동학회지
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• 제35권2호
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• pp.137-156
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• 2014

The purpose of this study was to better understand the tendencies and general distributive features of mathematical educational activities which are presented in the Nuri Curriculum Teaching Guidebooks. This was done by analysis of 628 mathematical activities suggested in those guidebooks, the total number of which was thirty-two. The results of this study can be summarized as follows: First, the number of activities for mathematical education was 204 for the age of three, 223 for the age of four, and 201 for the age of five. Second, these mathematical educational activities are aimed mainly for developing positive attitudes toward mathematics rather than the delivery of mathematical knowledge and skills. Third, the number of activities for developing mathematical inquiry skills was greater than that of activities for developing of inquiry attitudes. Furthermore, the characteristic of understanding the basic concepts of space and figures can be found most frequently in five kinds of activities for mathematical inquiry. Last, the activities for mathematical education are more frequently found in free choice activities rather than group activities. The results of this study also suggest that checking the current status of mathematical education for young children and the Nuri Curriculum Teaching Guidebooks can be utilized for creating teachers' manuals.

• 한국수학교육학회지시리즈A:수학교육
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• 제40권2호
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• pp.195-215
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• 2001

The purpose of this paper is to present a specific set of home teaching methods in hopes to prevent slow learner of the elementary mathematics. This paper deals with the number and operations, one of five topics in the elementary mathematics A survey of two hundred elementary school teachers was made to see the teacher's opinions of the role of home studying and to concretize the contents of the research topics. There were asked which is the most essential contents for the concrete loaming and which is the most difficult monad that might cause slow leaner. And those were found to be; counting, and arithmetic operations(addition and subtraction) of one or two-digit numbers and multiplication and their concepts representations and operations(addition and subtraction) of fractions. The home teaching methods are based on the situated learning about problem solving in real life situations and on the active teaming which induces children's participation in the process of teaching and learning. Those activities in teaching each contents are designed to deal with real objects and situations. Most teaching methods are presented in the order of school curriculum. To teach the concepts of numbers and the place value, useful activities using manipulative materials (Base ten blocks, Unifix, etc.) or real objects are also proposed. Natural number's operations such as addition, subtraction and multiplication are subdivided into small steps depending upon current curriculum, then for understanding of operational meaning and generalization, games and activities related to the calculation of changes are suggested. For fractions, this paper suggest 10 learning steps, say equivalent partition, fractional pattern, fractional size, relationship between the mixed fractions and the improper fraction, identifying fractions on the number line, 1 as a unit, discrete view point of fractions, comparison of fractional sizes, addition and subtraction, quantitative concepts. This research basically centers on the informal activities of kids under the real-life situation because such experiences are believed to be useful to prevent slow learner. All activities and learnings in this paper assume children's active participation and we believe that such active and informal learning would be more effective for learning transfer and generalization.

• 한국수학교육학회지시리즈A:수학교육
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• 제43권4호
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• pp.419-440
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• 2004

The purpose of this paper is to know the effects on number and operation abilities of the 1st grade children of elementary school by applying teaching and learning activity throught communication. For this purpose, we have studied according to the following procedure. 1. We divised teaching and learning model through communication and applied in the actual teaching and learning activity. 2. We investigated the effects of number and operations abilities of the 1st grade children by applying teaching and learning activity through communication. To accomplish this purpose, we applied learning activity through communication to the 1st grade of 40 elementary school children for about six months(September 1, 1999 ～ February 20, 2000). In process of applying this model, we collected all sorts of cases in the children's learning activity and investigated children's response on learning activity through communication, interview with children and researcher's observation. We applied the model through communication in class and compared with the traditional learning. 1. In learning through communication, children could solve the problem in themselves with a sense of responsibility. 2. It was impossible to find out the degree of children's comprehension in the explanatory learning. But in the learning through communication, it was a great help to individualize and plan the learning because children express their ideas clearly. It has conclusion as follows. The learning activity through communication has effected on forming number and operations abilities of the 1st grade of elementary school children importantly. 1. Children have improved in the abilities through communication to express their own ideas. 2. Children have studied with a sense of responsibility not in the teacher-oriented learning but in the self-directed learning 3. Children could find out the mathematical concepts in themselves - correcting false concepts, reguiding concepts by errors, finding invisible errors, solving problems variously and knowing the easy method. 4. The activity through communication in mathematics was a base of children's individual learning and important data of next learning plan. 5. The mathematical concepts formed through communication had a high transfer of learning. 6. Children have taken pleasure of discovery and had affirmative attitude about mathematics learning. We can make sure that number and operations abilities of the 1st grade children are formed by applying teaching and learning activity through communication. However, help and control of teacher have to be with it.

• 한국수학교육학회지시리즈A:수학교육
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• 제50권2호
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• pp.135-148
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• 2011

We can say that the history of mathematics is the history on the development of the number system. The number starts from Natural number and is constructed to Integer number and Rational number. The Rational number is not the complete number analytically so that Real number is completed by the idea of the nested interval method. Real number is completed analytically, however, is not by algebra, so the algebraically completed type of the rational number, through the way that similar to the process of completing real number, is Complex number. The purpose of this study is to show the most appropriate way for the development of the human being thinking about the teaching and leaning of Complex number. To do this, We have to consider the proof of the existence of Complex number, the background of the introduction of Complex number and the background knowledge that the teachers to teach Complex number should have. Also, this study analyzes the knowledge to be taught of Complex number based on the anthropological theory of didactics and finally presents the teaching method of Complex number based on this theory.

• 한국보육지원학회지
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• 제12권2호
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• pp.57-72
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• 2016

The purpose of this study was to examine the influence of teachers' vocational aptitude and sense of responsibility on their teaching efficacy in early childhood education and care. 259 teachers in ECEC were recruited from 19 daycare centers and the data were analyzed through frequency, percentage, Pearson's correlations, and stepwise regression using SPSS 18.0. The findings are as follows. First, teachers' teaching efficacy was significantly different according to their age, the number of years of teaching experiences, and education levels. Second, all degrees of teachers' vocational aptitude, sense of responsibility, and their teaching efficacy were higher than the median points. Second, teachers' efficacy relating with running class was affected most by the ability of safe management in vocational aptitude, and teaching methods in sense of responsibility. For teachers' efficacy relating to teaching, acceptability/sensitivity in vocational aptitude and motivation had the most impact. The implication was discussed in order to figure out the ways to increase teachers' efficacy.

• 한국초등수학교육학회지
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• 제22권1호
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• pp.1-24
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• 2018

2015년 1학기와 2학기에 J 교육대학에서 실시한 교육실습 1과 교육실습 2에 모두 참여한 11명의 초등 예비교사들을 대상으로 수학 수업전문성 지식들로 구성된 반성적 수학 수업 분석지를 활용하여 수업 반성을 하게 한 후, 수학 수업 횟수에 따른 초등 예비교사들의 수학 수업전문성 지식의 활용 양상을 연구하였다. 그 결과는 다음과 같다. 첫째, 수학 수업 실습의 횟수가 증가함에 따라 실습에 참여한 예비교사들의 수학 수업전문성 지식 활용이 증가하였고, 7명의 수학 수업전문성 지식 활용도는 크게 증가하였다. 그러나 수학 수업전문성 지식 활용이 증가한 하위영역의 개수는 최소 2개에서 최대 7개까지 예비교사에 따라 달랐다. 둘째, 수학 수업 실습을 2회나 3회 실시한 예비교사들보다 4회 실시한 예비교사들의 수학 수업전문성 지식의 활용도가 더 높았다. 셋째, 2회나 3회 수업한 일부 예비교사들은 수학 수업전문성 지식의 활용도가 증가한 하위영역에서 조차도 수업 실습 전체 과정 동안 단 한 번도 해당 하위영역 만점의 90%에 도달하지 못하였다. 넷째, 수학 수업에서 실습에 참여한 예비교사들이 가장 어려움을 느낀 하위영역은 '수업 전 반성 - 교수관점 - 수학교과 지식의 이해'로 분석되었으며, 그 이유로는 대부분의 예비교사들이 수학적 개념의 역사적 배경에 관한 자료 부족을 호소했다.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제8권1호
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• pp.1-11
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• 2004

Whole number concept is an important part of mathematics learning. Elementary school students should understand and master whole number concept. Models can help students learn whole number concepts. Realistic Mathematics Education in Netherlands had investigated and developed three different structural models: line model, group model, combination model. These models are related whole number concepts and structures closely and compatible. The purpose of this study is to investigate models related with whole numbers in 7th elementary textbooks. As a result of analyses, we found out some pattern and several problems. On the foundation of the analyses, we discussed the better ways of using models in teaching whole number and the research issues concerning these.

• 아동학회지
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• 제30권6호
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• pp.223-235
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• 2009

Elementary education in Korea has variously changed and developed during the last thirty years. Among all the progressive changes, the improvement of teaching conditions is considered to be the most fundamental one. The number of students assigned to a class or a teacher has decreased to a considerable extent. Cyber teaching-learning has been peformed at school and home, and English education has been emerged as a significant part of the Korean public education. The research issues constantly considered essential over the past three decades starting in the 1980's are those related to curricula, teaching-learning methods, training of teachers in-service, and education for upright characters. The practical and political issues should be dealt with to revise the three integrated subjects and text books into a sole integrated subject and text book, to double the credential of teachers in terms of professionalism and to decrease the number of students per teacher in Korea to the OECD level.