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중등 수학교육에서 ICT를 활용한 수학사의 지도에 관한 연구
고석구,정경식 建國大學校 自然科學硏究所 2002 建國自然科學硏究誌 Vol.13 No.1
A knowledge on the history of mathematics makes us widely understand mathematics. By hearing mathematicians' lives and achievements, the contents related to real life and other subjects, anecdotes, a historical background and so on, students may have interest in mathematics, A teacher can also motivate them to the utmost. But history of mathematics which can give students some interests is poor in high school textbooks, and if a teacher refers to materials of another mathematical history, it is difficult for him or her to use them as teaching materials because these materials are too massive and difficult to deal with. Therefore I have a goal in fostering students' interest in mathematics and helping them to study easily by making teaching-learning materials using ICT of these massive and difficult contents of mathematical history, and by teaching students mathematics using them in class. The class using ICT can greatly contribute to the expansion of 'the mathematical power' emphasized on the seventh grade math course because it is not center of a teacher that transmits knowledge to students unilaterally but the center of students who explore and discover mathematics for themselves. So classes using ICT should be activated. A teacher must have self-confidence as an expert of the subject and study the technology of information, diving into the sea of information.
충주(忠州)댐 유역(流域) 1990년(年) 9월(月) 대홍수(大洪水)의 수문학적(水文學的) 분석(分析)
고석구,이희승,정동국,정재성,Ko, Seok Ku,Lee, Hee Sung,Jeong, Dong Kug,Jung, Jae Sung 대한토목학회 1992 대한토목학회논문집 Vol.12 No.4
1990년 9월 9일부터 12일까지 한반도의 중부지방에 집중호우(集中豪雨)가 내렸으며 특히 1986년 완공된 우리나라 초대규모의 수자원 사업인 충주댐 유역에는 대홍수가 발생하였다. 홍수시 댐지점에 최대 유입량이 약 $21,000m^3/sec$에 달하였으며, 이는 설계 당시의 기준에 의하면 500년에서 1000년 빈도의 대홍수에 상당한다. 홍수후 현지조사를 포함한 광범위한 수문분석(水文分析)이 수행되었으며, 현지조사 결과 유역내에 위치한 22개소의 Telemetering 자동우량계 중 6개가 당시 호우동안에 정상적으로 작동되지 않았음이 확인되었다. 결측되었거나 오측된 6개 지점에 대한 Kriging 보간법(補間法)에 의한 강우보정(降雨補正)과 수수기(受水器) 높이에 따른 강우보정 결과유역 강우량이 206mm에서 665mm로써 유역평균 강우량은 458.6mm에 이르렀다. 년간 홍수량에 대한 경향분석(傾向分析) 결과 설계 홍수량을 증대시켜야 됨을 알 수 있었으며 충주댐의 운영 및 관리를 위해서 각 빈도에 따른 새로운 설계 홍수량을 제시하였다. A heavy storm hit the central part of the Korean Peninsula especially on the Chungju Dam Basin from the 9th to 12th of September 1990. The Chungju multipurpose dam is the largest water project in Korea completed in 1986. The storm recorded a peak inflow of about $21,000m^3/sec$ at the dam site which is equivalent to 500 to 1000 years recurring frequency according to the designed concept. Extensive hydrological analyses including field investigation were performed to identify the storm. The result of the field investigation showed that 6 gages among the 22 telemetering rain-gages located in the basin were proved to be out-of-normal operation during the storm. The corrected basin average rainfall was estimated to be 458.6 mm ranging from 206 to 665 mm. The correction of the rainfall depth included the adjustment of the rainfall depths of the 6 gages using the Kriging interpolation technique, and adjustment according to the heights of the gage mouths. For the maintenance and operation of the Chungju Dam, new design floods were suggested from the trend analysis which showed that the design flood have to be increased because of the increasing tendency of the annual flood peaks.