• 제목/요약/키워드: science interest

검색결과 5,224건 처리시간 0.031초

Features of the Discussion Method in the Training of Students in the Context of Distance Learning

  • Irina Gladilina;Svetlana Sergeeva;Lyudmila Pankova;Vladimir Kolesnik;Ekaterina Svishcheva
    • International Journal of Computer Science & Network Security
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    • 제23권11호
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    • pp.77-82
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    • 2023
  • The article considers online discussion as an interactive learning method in the conditions of distance learning. The essence of discussion and the stages of its organization are described. The main objective of discussion in distance learning is defined as the stimulation of interest in learning and the involvement of various viewpoints in an active discussion of the stated problems. The key role in ensuring the efficiency of a discussion is identified. The article develops a model for organizing asynchronous online discussions on the Moodle platform, highlighting the sequence of stages and their content. An experimental study of the use of the discussion method in the training of students in distance learning conditions is carried out. Based on the results of the methodological experiment, conclusions are drawn about student interest in online discussions. The authors conclude that the interest of students of different specialties in asynchronous online discussions varies, and the greatest interest is demonstrated by linguistics students. Nevertheless, the differences in student interest in online discussions by groups (specialties) are more likely attributable to subjective factors, which do not affect the overall picture in a major way.

VAR 모형을 이용한 주가, 금리, 물가, 주택가격의 관계에 대한 실증연구 (An Empirical Analysis on the Relationship between Stock Price, Interest Rate, Price Index and Housing Price using VAR Model)

  • 김재경
    • 유통과학연구
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    • 제11권10호
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    • pp.63-72
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    • 2013
  • Purpose - This study analyzes the relationship and dynamic interactions between stock price index, interest rate, price index, and housing price indices using Korean monthly data from 2000 to 2013, based on a VAR model. This study also examines Granger causal relationships among these variables in order to determine whether the time series of one is useful in forecasting another, or to infer certain types of causal dependency between stochastic variables. Research design, data, and methodology - We used Korean monthly data for all variables from 2000: M1 to 2013: M3. First, we checked the correlations among different variables. Second, we conducted the Augmented Dickey-Fuller (ADF) test and the co-integration test using the VAR model. Third, we employed Granger Causality tests to quantify the causal effect from time series observations. Fourth, we used the impulse response function and variance decomposition based on the VAR model to examine the dynamic relationships among the variables. Results - First, stock price Granger affects interest rate and all housing price indices. Price index Granger, in turn, affects the stock price and six metropolitan housing price indices. However, none of the Granger variables affect the price index. Therefore, it is the stock markets (and not the housing market) that affects the housing prices. Second, the impulse response tests show that maximum influence on stock price is its own, and though it is influenced a little by interest rate, price index affects it negatively. One standard deviation (S.D.) shock to stock price increases the housing price by 0.08 units after two months, whereas an impulse shock to the interest rate negatively impacts the housing price. Third, the variance decomposition results report that the shock to the stock price accounts for 96% of the variation in the stock price, and the shock to the price index accounts for 2.8% after two periods. In contrast, the shock to the interest rate accounts for 80% of the variation in the interest rate after ten periods; the shock to the stock price accounts for 19% of the variation; however, shock to the price index does not affect the interest rate. The housing price index in 10 periods is explained up to 96.7% by itself, 2.62% by stock price, 0.68% by price index, and 0.04% by interest rate. Therefore, the housing market is explained most by its own variation, whereas the interest rate has little impact on housing price. Conclusions - The results of the study elucidate the relationship and dynamic interactions among stock price index, interest rate, price index, and housing price indices using VAR model. This study could help form the basis for more appropriate economic policies in the future. As the housing market is very important in Korean economy, any changes in house price affect the other markets, thereby resulting in a shock to the entire economy. Therefore, the analysis on the dynamic relationships between the housing market and economic variables will help with the decision making regarding the housing market policy.

이자율(利子率)의 변화(變化)가 임산물수입(林産物輸入)에 미치는 영향 (Impacts of the Interest Rate Change on the Forest Products Import Quantities in Korea)

  • 김동준
    • 한국산림과학회지
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    • 제90권5호
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    • pp.663-671
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    • 2001
  • 이 연구는 이자율의 변화가 임산물수입량에 미치는 영향을 우리나라 시장을 대상으로 분석하였다. 첫번째 목적은 이자율의 변화가 임산물수입량 변화의 원인이 되는지, 즉 인과관계를 파악하는 것이고, 두번째 목적은 이자율의 변화가 임산물수입량에 얼마만큼 얼마동안 영향을 미치는지, 즉 동태적 영향을 추정하는 것이다. 이자율과 임산물수입량의 관계는 자기회귀모형에 의해 만들어졌다. 인과관계 파악은 인과성검정을 이용하였고, 동태분석은 분산분해분석과 충격반응분석을 이용하였다. 결과에 의하면 이자율의 변화는 임산물 중에서 합판수입량 변화의 원인이 되었다. 합판의 경우에 어느 시기의 수입량은 그 시기 이전의 이자율에 의해 20%, 그 시기 이전의 수입량에 의해 80% 가량 설명되었다. 또한 이자율의 변화는 합판수입량에 6개월까지 영향을 미쳤다. 즉 이자율의 변화가 합판수입량에 영향을 미쳤더라도 단기간에 불과했다.

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무관심에서 호기심으로 -초등예비교사의 물리에 대한 호기심과 흥미 향상을 위한 초등과학 교사교육자의 실행연구- (Eliciting Curiosity from Indifference: Action Research of an Elementary Science Teacher Educator Aimed at Stimulating Preservice Elementary School Teachers' Curiosity and Interest Physics )

  • 이지원
    • 한국과학교육학회지
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    • 제43권6호
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    • pp.533-547
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    • 2023
  • 이 연구에서는 초등예비교사를 위한 과학 교수법 수업을 진행하는 교사교육자가 수업에서 마주하게 된 초등예비교사의 과학에 대한 낮은 흥미와 호기심 수준의 원인이 무엇인지 파악한 후 이를 해소하기 위한 실천 계획을 탐색하고 수업에 적용하고 성찰하였다. 이러한 실행연구를 통해 초등예비교사를 위한 과학 수업에서 교수 실천을 개선하고 초등예비교사의 과학에 대한 흥미와 호기심을 향상시킬 수 있는 방안을 제안하였다. 초등과학교재연구 물리영역 수업에 참여한 초등예비교사를 대상으로 총 3차에 걸쳐 실행과 성찰을 반복하는 나선형적 실행구조를 설계하였고, 수업 일지, 학생의 참여 데이터, 동료 및 자기 평가 결과, 초등예비교사의 강의평가 결과 등을 수집하고 분석하였다. 초등예비교사의 과학에 대한 호기심이 낮은 이유를 정보격차의 인식과 표현력 부족 및 정보격차의 해소 의지가 낮기 때문으로 보고, 정보격차의 표현 연습, 정보격차를 인식할 수 있도록 지식수준 높이기, 정보격차의 해결의지 가지기 전략을 수업에 도입하였다. 단위 수업의 개선으로 변화할 수 있는 범위 내에서 초등예비교사는 이러한 과정 속에서 과학에 대한 호기심을 가지고 이를 표현할 수 있게 되었다.

초등 과학 수업에 VR 구현 프로그램을 활용한 SW 융합교육프로그램의 개발과 적용 (The Development and Application of the SW-STEAM Program by Utilizing Software Supporting the Creation of VR for Elementary Science Class)

  • 김혜란;최선영
    • 한국초등과학교육학회지:초등과학교육
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    • 제39권2호
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    • pp.296-305
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    • 2020
  • The purpose of this study was to analyse the effects of the SW-STEAM program by utilizing software supporting the creation of VR for elementary science class. Two classes of 5th grade were selected, and were engaged in different teaching and learning methods during 12 class hours. The experimental group which is consisted of 20 students participated in the SW-STEAM program by utilizing software supporting the creation of VR, the comparative group which comprised 19 students was thaught by using a traditional instruction. Teaching unit was 'the solar system and stars' in 5th grade science text book. The results of this study were as follows. The SW-STEAM program by utilizing software the creation of VR had a positive effect on elementary school students' creative problem solving ability, scientific interest, science achievement. Therefore, the SW-STEAM program by utilizing software supporting the creation of VR could be meaningful works to encourage students' creative problem solving ability, scientific interest, science achievement, and this study will help elementary teachers teach 'the solar system and stars' in 5th grade science text book more interesting.

자기주도적 학습력 향상을 위한 학습문제 제시 방안 연구 (Research of Suggesting Study Problems for Enhancing Self-directed Learning Ability)

  • 박영희;김정길;김석중;송판섭;김해경;문병찬
    • 한국초등과학교육학회지:초등과학교육
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    • 제20권2호
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    • pp.197-215
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    • 2001
  • The science in elementary school has the purposes of having interest and curiosity in nature phenomena and things, of understanding basic concepts of science, realizing experimental know-how for students. And it also intends students to develop self-leading research ability and creative problem-solving ability through looking-in and experience about nature. However, existing science is accepted very hard and no interesting, just bothering to prepare more then a ability-developing or interest. In this report, I will analyze the study problems suggested in science textbook from 3rd to 6th grade, then find a new way for study problem suggesting and adopt it. It would help students have interest, approach problem without tense, understand problem exactly, and stand a concreat study schedule of experiment, observation, rearrangement, result interpretation that have students study by themselves. Because the suggesting way of science study problem statement is important thing to develop students' creativity and problem- solving abillity and to make self-leading attitude, I wish the exiting, veneficial, and waiting-for science class, through apply the newly developed methology suggested in this report.

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IMF 전후기간의 원/달러환율과 금리에 대한 실증분석 (Analysis about relation of Won/Dollar Foreign Exchange Rate and Interest Rate of Korea)

  • 김종권
    • 대한안전경영과학회:학술대회논문집
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    • 대한안전경영과학회 2005년도 추계학술대회
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    • pp.569-579
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    • 2005
  • International capital movement has made progress at global liberalization of finance and foreign exchange, international monetary norm changing into floating exchange rate system, easiness of collection of information and trade at improvement of information communication technology from early of 1970's. Results of empirical test for relation between foreign exchange rate or various determination factors of foreign exchange rate and interest rate are followed by next sentences. First, according to relation between foreign exchange rate and interest rate, correlation for each of variables after OECD entrance is increased. 'But, long-term & short-term interest rate is affected by Hanbo & Kia's bankruptcy, continuous large scale coporates bankruptcy and crisis of foreign exchange. Therefore, financial instability is occured. If portfolio investment fund has been inflow as it is mollified by continuous shortage of foreign exchange and fall of country's credit rating, it is expected to have positive effect for long-term & short-term interest rate from appreciation of won against dollar. Second, results from relation between determination factor of foreign exchange rate and interest rate are followed by next sentences. If surplus of current account and goods account is continued, yield of corporate bond is to be stable. But, margin of surplus is expected to diminish after second quarter 98, and difference between external and domestic interest (after adjusting foreign exchange rate) is to be diminished. And if net inflows of foreign investor's fund (stock and bond) is diminished, it is to have negative effect for yield of corporate bond. According to foreign investor's investment movement of previous years, hedge fund were stayed at least during two years in Mexico. It means that sudden capital outflow is not to be happened at Korea.

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과학교과 흥미도의 종단적 변화와 그 영향요인 (The Impact Factors and Longitudinal Change of Interest on Scientific Subject)

  • 김경식;이현철
    • 과학교육연구지
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    • 제33권1호
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    • pp.100-110
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    • 2009
  • 본 연구의 목적은 한국교육고용패널(KEEP: Korean Education & Employment Panel) 자료를 활용하여 한국 청소년들의 과학교과 흥미도의 종단적인 변화와 그 영향요인을 분석하고자 한다. 이를 위해 시간의 변화에 따른 종단적인 개인의 변화와 차이를 분석할 수 있는 잠재성장모형(LGM)을 적용하였다. 연구의 결과는 먼저 한국 청소년들의 과학에 대한 흥미도가 변화하고 있으며, 그 변화의 패턴은 이차곡선적인 변화를 보이고 있음을 확인하였다. 그리고 그러한 과학교과 흥미도의 초기치와 변화율의 상관이 부적으로 나타났지만 통계적으로 무의미하였다. 또한 이러한 교과교과 흥미도의 변화에 영향을 주는 요인을 살펴보면 자아관, 학업성취, 학교생활 및 풍토 그리고 진학계열이 주요하게 영향을 주는 것으로 확인할 수 있다.

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의미 분석법에 의한 공과대학 신입생의 물리 이미지 및 관심 여부 (Physics Image Analysis by Sematic Method and Interest in Physics of Freshman Students in the Engineering College)

  • 송영욱
    • 과학교육연구지
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    • 제44권2호
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    • pp.214-224
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    • 2020
  • 물리 이미지 및 관심은 물리 학습에 영향을 미치는 요인 중에 하나이다. 공과대학 신입생은 고등학교 때에 다양한 학습 환경 조건에서 대학에 입학한다. 대학 물리교육을 위하여 공과대학 신입생의 특성에 따른 물리 이미지 및 관심을 조사할 필요가 있다. 이 연구는 공과대학 신입생의 성별과 고등학교 때 물리 이수 여부에 따른 물리 이미지와 관심 여부를 조사하여, 공과대학 학생의 대학 물리 학습에 대한 교육적 시사점을 논의한다. 연구 대상은 공과대학 1학년 공과 계열 286명, 정보기술 계열 242명, 건설환경 계열 136명 총 664명이다. 분석 내용은 공과대학 신입생의 성별과 고등학교 때 물리 이수 여부에 따른 물리 이미지 및 관심 여부를 분석한다. 분석결과 첫째, 물리 이미지는 공과대학 신입생의 물리 이수 여부에 따라 유의미한 차이가 나타났다. 고등학교 때 물리를 배우지 않은 학생의 물리 이미지 점수가 물리I 또는 물리I,II를 배운 학생보다 높게 나타났다. 둘째, 물리 관심 여부는 성별과 물리 이수 여부에 따라 유의미한 차이가 나타났다. 성별에서는 남학생이 여학생보다 물리 관심이 높았고 고등학교 때 물리 이수 여부에서는 고등학교 때 물리를 이수하지 않은 학생이 물리를 이수한 학생보다 물리 관심이 높았다. 끝으로 공과대학 학생의 대학 물리 학습에 대한 교육적 시사점을 논의한다.

마코프 국면전환을 고려한 이자율 기간구조 연구 (The Behavior of the Term Structure of Interest Rates with the Markov Regime Switching Models)

  • 이유나;박세영;장봉규;최종오
    • 대한산업공학회지
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    • 제36권3호
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    • pp.203-211
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    • 2010
  • This study examines a cointegrated vector autoregressive (VAR) model where parameters are subject to switch across the regimes in the term structure of interest rates. To employ the regime switching framework, the Markov-switching vector error correction model (MS-VECM) is allowed to the regime shifts in the vector of intercept terms, the variance-covariance terms, the error correction terms, and the autoregressive coefficient parts. The corresponding approaches are illustrated using the term structure of interest rates in the US Treasury bonds over the period of 1958 to 2009. Throughout the modeling procedure, we find that the MS-VECM can form a statistically adequate representation of the term structure of interest rate in the US Treasury bonds. Moreover, the regime switching effects are analyzed in connection with the historical government monetary policy and with the recent global financial crisis. Finally, the results from the comparisons both in information criteria and in forecasting exercises with and without the regime switching lead us to conclude that the models in the presence of regime dependence are superior to the linear VECM model.