• 제목/요약/키워드: Jeong Wan-Young

검색결과 582건 처리시간 0.033초

유아용 학습지의 현황 및 학습지에 대한 인식도 (The Present State and Perception of Worksheets for Young Children)

  • 현온강;공인숙;김영주;이완정
    • 아동학회지
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    • 제18권2호
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    • pp.213-228
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    • 1997

  • The purpose of this study was (l) to explore the present state of worksheets for home use with young children, and (2) to examine perceptions of young children's mothers and editors about these worksheets. 40 kinds of worksheets delivered to children's homes were analyzed. 106 mothers and 131 editors were surveyed by use of questionnaires which had been developed by the researchers. The results showed that (1) even though there are many types of worksheets delivered to the homes of young children, there are few worksheets which meet their teaching goals; (2) young children's mothers are well informed about the state of worksheets, and they would like to supplement the worksheets with visits by teachers who majored in child related studies; (3) the editors of worksheets have mostly majored in Korean language, English, and Math-related studies but not in child related studies.

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한국 유치원 및 국민학교 저학년 아동들의 생명 개념에 관한 연구 (How Do Korean Young Children Conceptualize Living Things and Nonliving Things?)

  • 이경희;정완호;정진수
    • 한국과학교육학회지
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    • 제15권1호
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    • pp.126-131
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    • 1995

  • The purpose of this study was to identify how young children conceptualize living things and nonliving things. For this study, a total of 465 young children was sampled in Krea, and a questionnaire of paper test was administered to them. The results were as follows. 1. More than 80% of young children recognized dogs and dandelions as living things, but less than 60% of children recognized bird's eggs and chestnuts as living things. 2. Mostly, young children's ability to distinguish exactly between living things and nonliving things improved by increasing grade level. 3. Criteria to distinguish about living things and nonliving things are firstly to be mobilized and secondly to be breathed.

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철도차량 비상상황과 안전을 위한 관련 설비 (Related Facilities for the Safety from a State of Emergency)

  • 정동석;송영정;우이완
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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    • pp.1389-1396
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    • 2011

  • There can be several states of emergency when the train is in operation. In this paper we consider passengers how to escape from emergency states and what facilities they can use by each situation. In general, passengers can escape from a train by manual door openning, emergency ramp and breaking window. Now, we consider which facility is proper to each scenario.

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롤러다짐 콘크리트의 물리적 특성 (The Properties of Roller-Compacted Concrete)

  • 장봉석;임정열;김완영;정우성
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2006년도 춘계 학술발표회 논문집(II)
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    • pp.525-528
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    • 2006

  • This study performed an experimental test to derive the characteristics of compressive strength, het of hydration and creep of roller compacted concrete. The main variable of strength test are cement content and fly ash content. The heat of hydration test was performed using MARUTO CH-50-CA and dreep test was carried out according to KS F 2453.

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