• Title/Summary/Keyword: 문제해결 지도

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Study of shortest time artillery position construction plan (최단시간 포병진지 구축계획 수립을 위한 연구)

  • Ahn, Moon-Il;Choi, In-Chan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.6
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    • pp.89-97
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    • 2016
  • This paper addresses the problem of the construction planning of artillery positions, for which we present an optimization model and propose a heuristic algorithm to solve problems of practical size. The artillery position construction plan includes the assignment of engineers to support the artillery and the schedule of the support team construction sequence. Currently, in the army, managers construct the plan based on their experience. We formulate the problem as a mixed integer program and present a heuristic that utilizes the decomposition of the mixed integer model. We tested the efficacy of the proposed algorithm by conducting computational experiments on both small-size test problems and large-size practical problems. The average optimality gap in the small-size test problem was 6.44% in our experiments. Also, the average computation time to solve the large-size practical problems consisting of more than 200 artillery positions was 79.8 seconds on a personal computer. The result of our computational experiments shows that the proposed approach is a viable option to consider for practical use.

Comparison of the Problem Solving Abilities as Simulation Learning Stage -Focused on Care for Patients with Asthma in Emergency Units (시뮬레이션 학습단계에 따른 간호학생의 문제해결능력 비교연구 -응급실 내원 호흡곤란 환자사례를 중심으로)

  • Kim, Young-Hee;Kang, Kyung-Ah;Lee, Myung-Nam;Kim, Yun-Kyung;Kim, Ye-Jean;Lee, Jung-Jae;Jeong, Hyeon-Cheol
    • The Journal of the Korea Contents Association
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    • v.15 no.1
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    • pp.495-505
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    • 2015
  • The purpose of the study is to investigate the problem solving abilities of nursing students in case of simulation-based emergency care for respiratory distress patients. For this study, 117 third year nursing students participated in the adult simulation practice from April 22 to May 31, 2013. The results of the study revealed that problem solving abilities after simulation practice were significantly greater than those after self-directed learning(t=2.59, p=.010). In the analysis of subcategories of problem solving abilities, there were significant differences in the definition of problem solving (t=2.95, p=.004), the device of problem solutions(t=2.10, p=.0.37), and the review of problem resolutions(t=3.06, p=.002). Based on these results, the study confirmed that the simulation practice was an effective teaching method for problem solving skills.

An Analysis on Mathematical Thinking Processes of Gifted Students Using Problem Behavior Graph (PBG(Problem Behavior Graph)를 이용한 수학적 사고 과정 분석)

  • Kang, Eun-Joo;Hong, Jin-Kon
    • Communications of Mathematical Education
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    • v.23 no.3
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    • pp.545-562
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    • 2009
  • This study is trying to analyze characteristics of mathematical thinking processes of the mathematical gifted students in an objective and a systematic way, by using "Protocol Analysis Method"and "Problem Behavior Graph" which is suggested by Newell and Simon as a qualitative analysis. In this study, four middle school students with high achievement in math were selected as subjects-two students for mathematical gifted group and the other two for control group also with high scores in math. The thinking characteristics of the four subjects, shown in the course of solving problems, were elicited, analyzed and compared, through the use of the creative test questionnaires which were supposed to clearly reveal the characteristics of mathematical gifted students' thinking processes. The results showed that there were several differences between the two groups-the mathematical gifted student group and their control group in their mathematical talents. From these case studies, we could say that it is significant to find out the characteristics of mathematical thinking processes of the mathematical gifted students in a more scientific way, in the sense that this result can be very useful to provide them with the chances to get more proper education by making clear the nature of thinking processes of the mathematical gifted students.

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Development and Effect of the Creative Problem Solving Capacity Education Program for University Freshmen Using Game component (게임적 요소를 활용한 대학 신입생의 창의적 문제해결 교육 프로그램 개발 및 효과)

  • Jeon, Shin-young;Park, Joo-Hee
    • Journal of Korea Game Society
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    • v.21 no.2
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    • pp.139-150
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    • 2021
  • This study analyzed the effectiveness by developing an online program to enhance collaborative problem-solving capabilities for college freshmen using gamification. According to the research results, the operational model of the online program for enhancing collaborative problem-solving capabilities using gamification was presented in five stages: 1 preparation, 2 team building, 3 assessment, 4 feedback, and 5 achievement sharing. The results of the "pre-test" and post T-test of creative problem-solving capabilities, the variables related to creative problem-solving skills, academic challenge, creative thinking ability, and convergence value creation have been significantly improved. What should be discussed in the future is the need to experience collaborative problem solving process online, and to develop game design and platform that can discuss and communicate.

Development and Application of Problem Bank of Problem Solving Programming Using Online Judge System in Data Structure Education (자료구조 수업에서 온라인 자동평가용 문제해결 프로그래밍 문제은행 개발 및 적용)

  • Kim, Seong-Sik;Oh, So-Hee;Jeong, Sang-Su
    • The Journal of Korean Association of Computer Education
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    • v.21 no.4
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    • pp.11-20
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    • 2018
  • This study is to propose a problem bank of problem solving programming using Online Judge System as one of the ways to motivate learners and increase for immersion to students who take Data Structure lecture that is the basis of problem solving ability using information science. In order to do this, we developed a question bank for each major topic in the Data Structure, by developing 70 problem solving programming problems suitable for the main topics of the Data Structure. By mounting it on an Online Judge System and applying to actual classes, and by analyzing the motivation for learning and the degree of immersion according to the result after the application of the lesson, we propose a teaching-learning contents and usage for problem solving programming and Data Structure classes at the teacher training university which give motivation for learning and immerse in problem solving programming.

The effect of Problem-Based Learning and Simulation Practice Convergence Education for Nursing Students (간호대학생의 문제중심학습과 시뮬레이션 실습 융합교육의 효과)

  • Kim, Hyun Jung;Chun, In Hee
    • Journal of the Korea Convergence Society
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    • v.9 no.7
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    • pp.355-364
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    • 2018
  • The purpose of this study is to investigate the effect of simulation practice combining problem-based learning on nursing knowledge, self-confidence, critical thinking tendency and problem solving ability. The subjects of this study were 45 students who took two courses of nursing situation practice in the fourth grade of S university in S area. Data were collected before and after the simulation exercise using the self-report questionnaire. The problem-based learning and the simulation practice convergence training were conducted for three weeks with two hours per week, and the post- integration nursing knowledge, self-confidence, critical thinking disposition, and problem solving ability scores were improved. Nursing knowledge, self-confidence, and critical thinking tendency were positively correlated with problem solving ability and proved the effectiveness of problem-based learning and simulation training. Therefore, education programs combining problem-based learning and simulation training on various topics should be developed and utilized.

A Study on the Solving Proportion Problems of Mathematics Textbooks and Proportional Reasoning in 6th Graders (초등학교 6학년 학생들의 교과서 비례 문제 해결과 비례 추론에 관한 연구)

  • Kwan, Mi-Suk;Kim, Nam-Gyunl
    • Journal of Elementary Mathematics Education in Korea
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    • v.13 no.2
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    • pp.211-229
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    • 2009
  • The purpose of this study is analysis of to investigate relation proportion problem of mathematics textbooks of 7th curriculum to proportional reasoning(relative thinking, unitizing, partitioning, ratio sense, quantitative and change, rational number) of Lamon's proposal at sixth grade students. For this study, I develop two test papers; one is for proportion problem of mathematics textbooks test paper and the other is for proportional reasoning test paper which is devided in 6 by Lamon. I test it with 2 group of sixth graders who lived in different region. After that I analysis their correlation. The result of this study is following. At proportion problem of mathematics textbooks test, the mean score is 68.7 point and the score of this test is lower than that of another regular tests. The percentage of correct answers is high if the problem can be solved by proportional expression and the expression is in constant proportion. But the percentage of correct answers is low, if it is hard to student to know that the problem can be expressed with proportional expression and the expression is not in constant proportion. At proportion reasoning test, the highest percentage of correct answers is 73.7% at ratio sense province and the lowest percentage of that is 16.2% at quantitative and change province between 6 province. The Pearson correlation analysis shows that proportion problem of mathematics textbooks test and proportion reasoning test has correlation in 5% significance level between them. It means that if a student can solve more proportion problem of mathematics textbooks then he can solve more proportional reasoning problem, and he have same ability in reverse order. In detail, the problem solving ability level difference between students are small if they met similar problem in mathematics text book, and if they didn't met similar problem before then the differences are getting bigger.

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Object and Structure in Elementary School Mathematics: Horizontal and Vertical Diversity of Structure (초등수학에서 대상과 구조: 구조의 횡적 다양성과 종적 다양성)

  • Yim, Jaehoon
    • Journal of Elementary Mathematics Education in Korea
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    • v.16 no.3
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    • pp.321-336
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    • 2012
  • Cognitive subject imposes structures on an object to shape it into a structured thing. Structures that the subject imposes on an object in a given problem context can be diverse horizontally and vertically. In view of the horizontal diversity of structure, problem-solving activities focusing on various structures may enrich the present problem-solving education which emphasizes applying and comparing a couple of problem-solving strategies. Finding an algebraic formula for a figural pattern should be regarded as a new starting point of searching for more various structures. In view of the vertical diversity of structure, it should be aware that students may see different structures from the structure that their teacher expect them to see. The vertical diversity of structure enables us to provide students with experience of progress.

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Relationship between Problem Solving Ability, Critical Thinking Disposition, Creativity, Self Efficacy and Nursing Process Competence of Nursing Students (간호대학생의 문제해결능력, 비판적 사고 성향, 창의성, 자기효능감과 간호과정 수행능력과의 관계)

  • Yang, Sun-Hee;Sim, In-Ok
    • The Journal of the Korea Contents Association
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    • v.16 no.5
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    • pp.612-622
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    • 2016
  • The purpose of this study was to identify the relationship between problem solving ability, critical thinking disposition, creativity and nursing process competence of nursing students. The participants in the study were 246 nursing students enrolled in 2nd year of a BSN program in S city, Korea. Data were collected from June 10 to June 20, 2015 using a structured questionnaire. Relationship between general characteristics and solving ability, critical thinking disposition, creativity and nursing process competence was analyzed by t-test, ANOVA and Kruskal-wallis. Correlation among problem solving ability, critical thinking disposition, creativity and nursing process competence was analyzed by pearson correlation coefficient. There was a statistically significant difference in problem solving with the reason for application, major satisfaction. There was a significant positive correlation between problem solving ability, critical thinking disposition, creativity and self efficacy. Nursing process competence was't a significant between problem solving ability, critical thinking disposition, creativity and self efficacy. These findings show that there is a need to develop strategies to improve self efficacy and nursing process competence for student nurses.