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박찬혜 공주교육대학교 초등연구원 1971 公州敎大論叢 Vol.8 No.2
Mathematics has originally intemationality and temporality in its nature. The objectives of math educa-tion, therefore, is changing according to the. social development and its growth. Consequontly it is needed to develop the contents and methods:of math education. Math education, that is, must be modernized according Jo the social needs. It was needed for its mode-rnization not only to study the teacher education guiding its growth but also to study the curriculum. This thesis intends to study the math curriculum for the teacher edut-aion in primary school as follows; 1. to study foreign trends in math education. 2. to study the orientation of math education in Korea. 3. to analyze the math curriculum in Korea. 4. to study the situations of primary school teachers in Korea. 5. to study the orientaon of teacher education in Korea. In conclusion, on the basis of these results the pre-service math curriculum for the students and the in-service math curriculum for the teachers are made to guide them new math curriculum.
朴贊惠 공주교육대학교 과학교육연구소 1987 과학교육연구 Vol.12 No.
The results of this study were as follows : 1. This study tried to find out a significant to introduce the game in arith- metical learning. 2. The construction of arithmetical learning situation involved theoritical backgronde, such as the original trend of me thematic education based on activism,operational learning principles advocated by J.Piaget, and mat he matic learning theories suggested by Z. P• Dienes. 3. This study tried to establish a principle of the cons tuct ion of arithmetical learning situation introduced the game. 4. This study tried to suggest a model of the construction of arithmetical learning situation introduced the game.
Unexpected anesthetic leakage from a damaged O-ring on the Selectatec back bar -A case report-
김영욱,오지미,박찬혜,최병문,장동민,방지연 대한마취통증의학회 2017 Anesthesia and pain medicine Vol.12 No.2
The Selectatec mounting system was devised to provide easy and quick on-site fitting of various vaporizers for the anesthetic machine. However, a quick changing system for the vaporizer can also damage the O-ring due to friction between the vaporizer and the Selectatec back bar. We herein report a case of an unexpected anesthetic gas leakage from a damaged O-ring on the Selectatec back bar, which resulted from exchanging the vaporizers between two operations. In cases using the Datex Ohmeda machine, it is not easy to detect leakages from the vaporizers because of the location of the check valve near to the fresh gas outlet. This complicates the use of the positive pressure leakage test to detect a low pressure system leakage on the Selectatec back bar. We recommend the preanesthetic negative pressure or low-flow leakage test to detect a low pressure leakage when exchanging vaporizers on the Selectatec system.