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역할극 중심의 실생활 문제 상황의 어림학습 지도에 관한 연구-초등 3학년을 중심으로-
김영랑,박영희 대한수학교육학회 2006 수학교육학연구 Vol.16 No.4
It is the purpose of this study to help computational estimation study to settle down in effective teaching method through analysis how students are understanding computational estimation and what occurs using computational estimation in actual life problem situations. I set 3 cases to accomplish these purposes. (1) How students are understanding computational estimation? (2) How students' computational estimation ability is in applying actual life problem situation? (3) What is students' different attitudes in an actual life problem situation before studying computational estimation and after? To accomplish the purpose, I chose 6 third grade students and taught "Computational estimation using actual life problem situation" and analyzed students' computational estimation processing. Then I arranged the computational estimation processing in an actual life problem situation and differences between the before and the after. As a result, I obtained the followings. (1) Need of estimation: Every students could recognize the need of estimation with experiencing an actual life problem situation. (2) Choosing the order of decimals: Students could choose appropriate order of decimals according to an actual life problem situations. (3) Using strategy: They usually use rounding strategy and quite often use special number and compatible number strategy. 본 연구는 수학학습 능력이 서로 다른 3학년 6명의 학생을 대상으로 총 6회의 실생활 문제 상황을 활용한 어림수업을 실시하여 어림에 어떤 변화가 보이는지 분석하고 어림학습 전과 후에 실생활 문제 상황 학습지를 투입하여 그에 대한 변화를 비교해 보았다. 실생활 문제 상황을 활용하여 역할극으로 진행된 어림수업에서 학생들은 자신의 생활과 친숙한 문제 상황 속에서 어림을 사용하였으며, 문제 상황에 따라 적절한 자리 수를 결정할 수 있음을 확인하였다.
김영랑,백정주,송광식,허윤정,장기철,박성만,김영훈,이효선,배근열,최경호,신교직 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.1
In liquid crystal display device, the alignment of the liquid crystal molecules plays the important role to characterize the image quality of LCD. The rubbing process of conventional technique has many problems for LCD such as generation of electrostatic charge and light leakage. On the other hand, the chemical method, photoalignment process, is a non-contact method that not only solves the problem of rubbing process, but also can has the effect of increasing yield and contrast ratio. Therefore, many kind of research have been conducted on photoalignment process. In this study, we have synthesized the photopolymer based on chalcone moiety-containing side chain in the backbone of polymaleimide. Originally, Toluene and Methyl Ethyl Ketone (MEK) were used for film casting solution. However, Tri-Acetyl Cellulose (TAC) film is damaged by MEK solution. Therefore, we replaced the solvents MEK of film casting solution with PGMEA and observed the photoalignment properties on TAC film.
모차르트 피아노 소나타의 이론과 실제 : KV.333 을 중심으로 with a focus on KV. 333
김영랑 한국음악학회 1993 한국음악학회논문집 음악연구 Vol.10 No.1
Wolfgang Amadeus Mozart lived a short life of 35 years at the end of the 18th century in classicism, but his music has been played most frequently and his life and work of art have been studied by numerous scholars for the past two hundred years. Mozart left over six hundred works including operas, symphonies, concertos, chamber musics, sonatas, and masses, and his genius shines through his piano music. He composed about eighteen piano sonatas. KV.333 was composed during or immediately after his stay in Paris, and together with five other sonatas composed in the same period. It is recognized for its outstanding artistic value. The present paper deals with Mozart's composition techniques, characteristics of his sonatas, and their performance alternatives with a focus on KV.333, a typical Mozart sonata. In accordance with the model of classicist sonatas, KV. 333 is composed of three movements : fast-slow-fast. The first movement in sonata Allegro form features a contrast between the lyrical first theme and the intensive second theme. Generally second movements of Mozart is very excellent. This second movement is also outstanding, and is characterized by the theme and its ornamental variation. The last movement of this sonata is a flowery rondo with cadenza and is marked by its concerto characteristics. It is interesting to study the entire process in which a piece of music is created and written by a composer, and is performed by a musician. This paper attempts at a unified treatment of theory and practice by analyzing a piece of music from a theoretic and an aesthetic perspective by examining problems faced in actual practice, and by suggesting some performace alternatives.