• 제목/요약/키워드: classroom research

검색결과 902건 처리시간 0.021초

초등학교 교실 급식 환경의 미생물학적 오염도 평가 (Assessment of microbial contamination levels of elementary school classrooms as foodservice environments)

  • 김선아;이해창;김은미;이민아;박지애;김정원
    • 한국식품조리과학회지
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    • 제23권3호통권99호
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    • pp.321-326
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    • 2007
  • The microbial contamination levels of school classrooms were assessed as foodservice environments for elementary students. Two elementary schools located in Kyunggi-do were selected, and the total plate counts (TPC) and coliforms were measured from the classroom facilities, including the tables, chairs, floors, shelves, doors, as well as the hands of students, and the air of classrooms. The TPC of the classroom facilities were relatively low ranging from 2.30 to 3.79 log CFU/100 cm$^2$. The TPC counts from the hands of serving students and served students, were 6.39 and 5.33 log CFU, respectively, and the TPC counts of the foodservice utensils were <3.00 log CFU/ea before use and 4.77 CFU/ea after use. The air samples of 'empty classrooms during physical education', 'after physical education class', and 'during lunch' showed the contamination levels of 26 CFU/m$^3$,392 CFU/m$^3$, 364 CFU/m$^3$, respectively, suggesting that the microbial levels in the air varies greatly depending on the class activity before foodservice. When the TPCs of the air during lunch were measured from 18 classrooms, the levels ranged from 76 to >2228 CFU/m$^3$. Coliforms were not detected in the classroom facilities; however, air samples of the classrooms showed 1${\sim}$2 CFU/m$^3$. The above results show that classroom air and the hands of students, can have high levels of microbial contamination, which must to be controlled for safer school foodservice.

수학 교과교실의 발전 방향 제안 (An investment on development direction of the mathematics subject classroom)

  • 이종희;박지현
    • 대한수학교육학회지:학교수학
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    • 제14권1호
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    • pp.65-83
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    • 2012
  • 본 연구는 현재 시범적으로 실시되고 있는 수학 교과교실이 안정적으로 정착되어 원활한 수학 수업이 이루어지기 위한 방안을 모색하는 것을 목적으로 하고 있다. 수학 교과교실의 발전 방향을 탐색해보기 위하여 먼저 선행 연구 분석을 통해 일반적으로 교과교실제를 운영하기 위해 고려해야할 사항들에 대해 조사하였다. 이를 바탕으로 교과교실 시범학교로 지정된 8개 학교를 선정하여 방문하고, 수학교사를 면담하여 수학 교과교실의 환경과 운영 현황에 대해 조사하고 변화되어야 할 사항을 파악하였다. 연구 결과 현재 운영되고 있는 수학 교과교실은 환경, 교육과정 운영, 교수-학습 등 여러 측면에서 보완해야 할 점이 있었다. 이에 수학 교과교실의 운영 방안과 5가지 수업 원리를 제안하였고, 수학 교과교실을 협동학습실, 첨단미디어실로 구분하여 각기 다른 기능을 가진 수학 교수-학습 방안을 설계하였다.

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인체치수와 교구배치를 고려한 초등학교 일반교실의 규모산정계획에 관한 연구 (A Study on the Optimum Size Calculation of Unit Classroom in Elementary School Based on the Size of the Human Body and the Layout of Teaching Tools and Desks)

  • 김학
    • 디자인학연구
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    • 제19권4호
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    • pp.17-30
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    • 2006
  • 이 논문은 인체치수와 교구에 기초한 일반교실평면크기의 산정에 관한 연구이다. 초등학교의 교육과정은 1960년대 이래로 지금까지 7차에 걸쳐 변화되었으며, 그러한 교육과정의 변화는 초등학교 일반교실의 평면에 반영되어 왔다. 새로운 교육과정인 제7차교육과정은 학급 내에서 다양한 활동을 수용할 것을 요구하게 되었다. 또한 교육부는 1997년 9월 학교시설기준을 폐지하였고, 일반교실의 규모가 교육의 질에 영향을 미치는 것을 고려할 때, 초등학교 일반교실의 크기에도 변화가 필요하게 되었다. 일반적으로 알려진 바와 같이, 각 부위별 인체치수는 키, 나이, 몸무게와 밀접한 관계가 있다. 이 연구에서는 한국인의 각 인체부위 치수를 산정하는데 있어서 키, 나이, 몸무게를 독립변수로 한 회귀분석이 사용되었다. 그 다음 각 부위별 인체치수, 교구 및 책상배열에 따라 일반교실의 크기를 산정하였다.

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Characteristics and Historical Stages for the Development of Secondary School Mathematics Classroom Teaching in China during 20th Century

  • Yu, Bo;Song, Naiqing
    • 한국수학교육학회지시리즈D:수학교육연구
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    • 제15권2호
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    • pp.105-114
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    • 2011
  • During the 20th century, the secondary school mathematics teaching in China had been developing from the an old-style private school form with individual instruction to classroom teaching with Chinese characteristics, which experienced three stages of development; the stage for the formation of modern teaching system (1902-1949), the stage for development (1950-1976), and the stage for innovation (1977-2000). The characteristics and journey for the transformation will exert great for reference and effects for the reform of secondary school mathematics teaching nowadays.

아프리카 지역의 교육 여건에 따른 블록형 스마트 교실 구축방안 연구 (A Study on the Development of Block Type Smart Classroom under the Educational Conditions in Africa)

  • 최종천;노인호;유갑상
    • 디지털융복합연구
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    • 제17권3호
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    • pp.227-234
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    • 2019
  • 본 연구는 교육인프라가 취약한 아프리카 국가들의 교육 콘텐츠, 교실환경, 그리고 ICT기술에 대한 종합적인 보급을 위한 블록형 스마트교실 모델 제시를 목표로 한다. 수업관리시스템, 전력관리시스템 및 교실환경 관리시스템을 통합하는 상황별 솔루션을 제시하고, 아프리카 지역의 국가별 경제적, 비경제적 여건에 최적화가 가능한 융합 모델이 될 것이다. 이는 기존의 서비스, 콘텐츠, 솔루션에 대한 독립적 연구개발이나 단일 컨테이너로 보급된 기존교실과는 차별화되는 효율적인 모델이 될 수 있을 것이다. 이러한 통합 연구 과정을 통해 기존 컨테이너교실에서 나타나는 공간과 기능적 한계를 극복하고 이러닝 기술 고도화에 대비한 융통성 있는 공간을 구축한다. 향후 보다 다양한 지역의 교육 및 인프라 여건에 부합하는 성능과 모델에 대한 탐구로 후속 연구의 깊이와 범위의 확장이 가능할 것이다.

High School Student-Teachers Attempts to Justify Mathematical Propositions Utilizing Spatial Structuring on Shape Transform

  • Rahim, Medhat H.;Siddo, Radcliffe A.
    • 한국수학교육학회지시리즈D:수학교육연구
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    • 제16권2호
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    • pp.107-123
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    • 2012
  • A group of twenty-nine high school student-teachers were given a set of mathematical propositions focusing on shape-to-shape transformations. Their task was to determine through hands-on manipulation and use of dynamic software that each shape be transformed into an area equivalent rectangular region. This paper reports on a classroom-based research.

Students' Growth of Understanding with Technology Experience from the Perspective of Representation

  • Jung, In-Chul
    • 한국수학교육학회지시리즈E:수학교육논문집
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    • 제15권
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    • pp.281-286
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    • 2003
  • The primary purpose of this study was to investigate how and to what extent 'representations' affect the students' understanding and the growth of understanding in a technology [GSP]-based collegiate mathematics classroom. There are three themes related as frames of the study along with this purpose, which are mentioned in the first chapter and extended in the second chapter: technology in mathematics education; images on computer screen - visualization and representation; understanding and growth of understanding. Three research questions guided this study: 1) How do students present each component of representations when they study 'transformations' in a technology [GSP]-based classroom? If there is any difference between the first and second presentation for each component, how are they different?; 2) How and to what extent do representations affect the students' understanding and the growth of understanding in a technology [GSP]-based classroom?; What types of benefits and obstacles are there when students study 'transformations' in a technology [GSP]-based classroom?

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How Student Classroom Engagement Affects Students' Study Results in Mathematics Classroom

  • SI, Hai-xia;YE, Li-jun;ZHENG, Yan-fang
    • 한국수학교육학회지시리즈D:수학교육연구
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    • 제22권4호
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    • pp.305-318
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    • 2019
  • To improve students' classroom engagement is not only the demand of curriculum revolution, but also the reflection of learning democracy. Students' responses and thinking are the main manifestations of students' participation in classroom learning. To reduce the amount of questions and increase the opportunities and time for students to think, this study, by employing SPSS, makes attempts to analyze the data by using multivariate GLM analysis to explore the effects of students' responses and thinking on learning results. The results indicated the students learning effect will be promoted through reducing the quantity and increasing the quality of question and adding the thinking opportunities.

마이크 사용시 강의실내의 음향특성 (The Acoustic Character of Classroom as Using Microphone)

  • 이채봉;강대기
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2003년도 춘계학술대회논문집
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    • pp.786-790
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    • 2003
  • The purpose of this research is to observe that the acoustic characters of classroom have some difference by several conditions. TSP has used to measure impulse response and such physical indexes as RT(Reverberation Time), D$\sub$50/, and STI(Speech-Transmission-Index) are computed by it. we investigate difference under some conditions such as when students were present at each classroom and when was not so, and when professor used a microphone and unused it. In this study, we found that reverberation time when people take a seat is lower than was not so. we wish to help one who work for construction industry, as they build a kind of classroom

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Features of Student Engagement in Chinese Middle School Mathematics Classrooms

  • Ye, Lijun;Si, Haixia
    • 한국수학교육학회지시리즈D:수학교육연구
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    • 제14권4호
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    • pp.333-345
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    • 2010
  • This study focuses on student engagement in Chinese middle school mathematics classrooms. By the recording and quantitative analysis on video case, this study explored the main acts and time of student engagement. The data showed that among the student engagements: (1) Students' responses to teacher's question occurred most frequently; (2) Collective responses were much more than the individual responses; (3) Students' responses and classroom practice spent the longest time; (4) The most frequent student engagements occurred in the aspects of classroom practice; and (5) Students rarely asked a question to teachers. The study also suggested that teacher's effective guidance could improve the level of student engagement and the content of classroom practice is very important to the quality of student engagement.