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Worked-out Example을 통한 중학생들의 수에 대한 학습
이일웅,김구연 한국학교수학회 2014 韓國學校數學會論文集 Vol.17 No.2
이 연구의 목적은 제곱근과 실수 단원에 대한 Worded-Out Examples을 활용하여 중학생 들의 수학적 사고과정을 수학적 숙련도(mathematical proficiency)를 통해 규명하는 것이다. WOE는 “학생의 학습을 위하여 전문가의 풀이 과정을 상세히 제공하는 도구”로 학생들의 수학에 대한 과정과 구조의 학습을 돕기 위한 것이다. 이를 위해, WOE 문항을 개발하여 6 명의 중학생들이 활용하도록 하고 2명의 학생을 대상으로 인터뷰를 실시하였다. 수집된 자료 를 분석하였고 그 결과는 다음과 같다. 학생들의 사고과정은 이해한 내용을 활용하여 적절한 단계로 문제를 풀어가는 ‘이해 · 계산’, ‘계산 · 추론’, ‘이해 · 계산 · 추론’으로 나타났다. 또 한 학생들 대부분이 ‘적용’하는 것에는 어려움을 겪는 것으로 나타났다. The purpose of this study is to investigate students’ thinking and understanding through working on Worked-out Examples on numbers and operations, specifically, radical and real numbers and operations in the middle grades. For this purpose, we developed a set of Worked-out Examples; middle school students independently worked on them. Then two students were interviewed. These data were analyzed by using the framework of mathematical proficiency. The data analysis suggested that the students seemed to go through the processes involving a combination of understanding and computation, computation and reasoning, and understanding, computation and reasoning. Also, it appeared that most of the students have difficult solving problems involving with radical and real numbers in related to strategic competence.
살모넬라 感染症으로 因한 暘穿孔性 腹膜炎의 臨床 및 血液像에 對한 觀察
李一雄,李泰淑,徐輔祥 충남대학교 의과대학 지역사회의학연구소 1975 충남의대잡지 Vol.2 No.2
A clinical and hematological review was made of 91 patient who had diffuse peritonitis due to typhoid perforation and were admitted and operated Daegu Fatima Hospital from 1965 to 1974. The result are summarized as follows. (1) The age incidence of the disease was highest in third decade and the the sex incidence revealed the preponderance of male to female as 2.25:1. (2) The monthly distributions of patients revealed high incidences in June, July and August. (3) Pneumoperitoneum was noted on 75.82% of patients. (4) An overall 21.98% of patients revealed leucopenia while the rate of leucopenia increased along the time lapse after perforation. (5) The average rate of leucocytosis was 30.77% and showed prominent increase in leucocytosis over 72 hours after perforation. (6) The differential count of peripheral blood had the tendency of increasing number of patients who had polymorphonuclear leucocytosis, lymphopenia and eosinopenia. (7) The Widal's test revealed positive (over 1:160) in 50%. (8) A single perforation was found in 76.92% of patients and the rest had 2 to 4 perforations. The nearer the ileum to the ileocecal junction, the more frequent incidences of perforations were noted. (9) High complication rates were noted. Among the frequent complications, wound infection was the highest(43.9%)and the next was wound disruption(21.98%). (10) The average hospital dates were 24.86 days. (11) The overall postoperative mortality was 13.19%. The mortality rate was higher in leucopenic patients than patients who had normal leucocyte count. The higher mortality rate was also observed in anemic patients and patients who had the longer time lapse after perforation.
이일웅,심재홍 대한신경외과학회 1979 Journal of Korean neurosurgical society Vol.8 No.1
The case of 8 year old boy is presented, in whom huge mass on the lumbosacral region from birth and mild motor weakness of left leg with urinary incontinence. The operative using surgical microscope and pathological findings are dicussed and reviewed of literature and a nosological classification of leptomyelolipoma given. The treatment underwent surgical microscope with good result. The importance of the surgical microscope is stressed.