• Title/Summary/Keyword: 공학 설계 기반 수업

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Major Class Recommendation System based on Deep learning using Network Analysis (네트워크 분석을 활용한 딥러닝 기반 전공과목 추천 시스템)

  • Lee, Jae Kyu;Park, Heesung;Kim, Wooju
    • Journal of Intelligence and Information Systems
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    • v.27 no.3
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    • pp.95-112
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    • 2021
  • In university education, the choice of major class plays an important role in students' careers. However, in line with the changes in the industry, the fields of major subjects by department are diversifying and increasing in number in university education. As a result, students have difficulty to choose and take classes according to their career paths. In general, students choose classes based on experiences such as choices of peers or advice from seniors. This has the advantage of being able to take into account the general situation, but it does not reflect individual tendencies and considerations of existing courses, and has a problem that leads to information inequality that is shared only among specific students. In addition, as non-face-to-face classes have recently been conducted and exchanges between students have decreased, even experience-based decisions have not been made as well. Therefore, this study proposes a recommendation system model that can recommend college major classes suitable for individual characteristics based on data rather than experience. The recommendation system recommends information and content (music, movies, books, images, etc.) that a specific user may be interested in. It is already widely used in services where it is important to consider individual tendencies such as YouTube and Facebook, and you can experience it familiarly in providing personalized services in content services such as over-the-top media services (OTT). Classes are also a kind of content consumption in terms of selecting classes suitable for individuals from a set content list. However, unlike other content consumption, it is characterized by a large influence of selection results. For example, in the case of music and movies, it is usually consumed once and the time required to consume content is short. Therefore, the importance of each item is relatively low, and there is no deep concern in selecting. Major classes usually have a long consumption time because they have to be taken for one semester, and each item has a high importance and requires greater caution in choice because it affects many things such as career and graduation requirements depending on the composition of the selected classes. Depending on the unique characteristics of these major classes, the recommendation system in the education field supports decision-making that reflects individual characteristics that are meaningful and cannot be reflected in experience-based decision-making, even though it has a relatively small number of item ranges. This study aims to realize personalized education and enhance students' educational satisfaction by presenting a recommendation model for university major class. In the model study, class history data of undergraduate students at University from 2015 to 2017 were used, and students and their major names were used as metadata. The class history data is implicit feedback data that only indicates whether content is consumed, not reflecting preferences for classes. Therefore, when we derive embedding vectors that characterize students and classes, their expressive power is low. With these issues in mind, this study proposes a Net-NeuMF model that generates vectors of students, classes through network analysis and utilizes them as input values of the model. The model was based on the structure of NeuMF using one-hot vectors, a representative model using data with implicit feedback. The input vectors of the model are generated to represent the characteristic of students and classes through network analysis. To generate a vector representing a student, each student is set to a node and the edge is designed to connect with a weight if the two students take the same class. Similarly, to generate a vector representing the class, each class was set as a node, and the edge connected if any students had taken the classes in common. Thus, we utilize Node2Vec, a representation learning methodology that quantifies the characteristics of each node. For the evaluation of the model, we used four indicators that are mainly utilized by recommendation systems, and experiments were conducted on three different dimensions to analyze the impact of embedding dimensions on the model. The results show better performance on evaluation metrics regardless of dimension than when using one-hot vectors in existing NeuMF structures. Thus, this work contributes to a network of students (users) and classes (items) to increase expressiveness over existing one-hot embeddings, to match the characteristics of each structure that constitutes the model, and to show better performance on various kinds of evaluation metrics compared to existing methodologies.

Development of Educational Program of STEAM-based Project for Circle Activities in Middle School: Focused on the Theme of "Photography of Earth" (중학교 동아리활동을 위한 STEAM 기반 프로젝트 교육 프로그램 개발: '지구사진 촬영' 주제를 중심으로)

  • Kim, Hyun-Jung;Kim, Young-Min;Kim, Jin-Yeon;Huh, Hye-Yeon;Kim, Jong-Nam;Kim, Ki-Soo
    • 대한공업교육학회지
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    • v.38 no.2
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    • pp.195-217
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    • 2013
  • The purpose of this study was to develop educational programs of STEAM-based project under the theme of "Photography of Earth" for the circle activities of the creative experiential activity, to be applied this program to them and to identify technology subject self-efficacy and change in attitude toward engineering. In order to achieve the research objectives, this program was applied to middle school student in Cheonan, STEAM-based circle during 9 class instruction. The results of this study are as follows. First, the STEAM program contents for circle activities were selected through utilizing a five-stage design model(preparation, design, development, implementation and evaluation) and analyzing the curriculum. After that we have developed a teaching plan, STEAM-Story, student activity sheets from the viewpoint of cultural fusion and have applied the circle activities of the creative experiential Activity during 4 months. Second, The result of the test(pre- and post-test) about STEAM program that has been developed were different about technology subject self-efficacy and attitude toward engineering. Therefore, we have verified that the effect of the STEAM-based project under the theme of "Photography of Earth" for the circle activities on the attitudes toward engineering and self-efficacy in middle school is effective.

A Study on Development of Educational CanSat based on Arduino for Creative Engineering Design and Practice Class (창의공학설계 및 실습 수업을 위한 아두이노 기반 교육용 캔위성 개발 연구)

  • Lee, Younggun;Lee, Sanghyun;Kim, Jongbum;Kim, Songhyon;Yoo, Seunghoon
    • Journal of Engineering Education Research
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    • v.24 no.5
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    • pp.38-45
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    • 2021
  • The CanSat was designed as an educational satellite simulation program that implements the overall system of the satellite such as the command processing unit, the communication unit, and the power unit in a structure of the size of a can. In particular, the training effect is very excellent because the trainee can learn a process similar to the actual satellite development process by designing, manufacturing, testing, and launching. Republic of Korea Air Force Academy has been using the CanSat production kit used by the domestic can satellite contest experience department for education, but since it was produced based on PCB, it was impossible to show creativity and operation was restricted even with small mistakes. In this paper, we analyze the existing CanSat kit and propose a new educational CanSat kit that can be used in creative engineering design and practice subjects that will be reorganized into a regular course from 2021, and a lesson plan. In conclusion, by using the proposed CanSat kit for lectures, it is possible to achieve educational purposes and effects, improve lecture satisfaction, and provide stable instruction.

A Comparative Study of Major Constructivist Teaching & Learning Strategies for Developing Learners' Expertise in Architectural Design - With a Focus on Problem-based Learning(PbBL), Case-based Learning(CBL), Project-based Learning(PjBL) - (건축설계 전문성 개발을 위한 구성주의 수업전략 탐색 연구 - 문제중심학습, 사례기반학습, 프로젝트중심학습을 중심으로 -)

  • Lee, Do-Young
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.34 no.3
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    • pp.61-72
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    • 2018
  • This study pursued to obtain 3 consecutive purposes. First, a conceptual model for comparing 3 constructivist teaching and learning strategies( problem-based learning[$P_bBL$], case-based learning[CBL] and project-based learning[$P_jBL$]) was developed. Relationships of these constructivist strategies with the development of expertise for learners were discussed. Second, specific differences between $P_bBL$, CBL and $P_jBL$ as applied in architectural design courses were analyzed under each of the teaching and learning category. Some analytical indexes were developed by content analysis, which are applicable effectively to reveal the differences. Based on the previous findings, third, a set of strategic guidelines for use in class were made and suggested in order to develop and improve expertise in architectural design. These guidelines were largely targeted for university design courses as well as education or reeducation of practicing architects. Expecially, combined application of $P_bBL$, CBL and $P_jBL$ was hypothesized and suggested as class management guidelines. In sum, a variety of $P_bBL$ problems, CBL cases and $P_jBL$ projects should be developed for expecting audience based on design subjects and tasks. As working domains of practicing architects, exploring/analyzing, understanding/making applications, and criticizing/self-reflecting should be considered in the development process.

Effect of Board Game Design Activity for Environmental Education on High School Students' Environmental Knowledge, Environmental Literacy and Creative Engineering Problem Solving Propensity (환경교육용 보드게임 디자인 활동이 고등학생들의 환경적 지식, 환경 소양과 창의 공학적 문제해결 성향에 미치는 영향)

  • Kim, JuHui;Nam, Younkyeong
    • Journal of the Korean Society of Earth Science Education
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    • v.15 no.1
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    • pp.117-131
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    • 2022
  • The purpose of this study is to develop a board game design activity for environmental education and to investigate how it affects high school students' environmental knowledge, environmental literacy, and creative engineering problem solving propensity. Twenty-five freshman and sophomore students belonging to the environmental club participated in this study. The board game activity was designed as 10 class hours lessons based on the engineering design process. The main data source of this study was pre-post students' conceptual maps of the environmental topics (global warming or ecosystem destruction) to measure the background knowledge on the topic. In addition, the environmental literacy measurement questionnaire and the creative engineering problem solving propensity questionnaire were collected before and after the activity. The result shows that the number of environment-related words described by the students on the post-concept map increased compared to the pre-concept map. In addition, the environmental literacy score and the creative engineering problem-solving propensity score increased significantly after performing the board game design activity. The results show that environmental lessons using board game design activities can help student develop various competencies in a good way. As above, research that combines board games and secondary education must be activated, and a new educational method and systemic support for in-service teachers who want to apply it to science classroom is required.

(Study on Efficient Teaching Methods Using Multi-Media) (멀티미디어를 이용한 효율적인 교수방법에 관한 연구)

  • 구명희;박완희
    • Journal of the Korea Computer Industry Society
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    • v.3 no.8
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    • pp.1117-1128
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    • 2002
  • This study suggests the most efficient teaching method by using multi-media. Based on the outcome of the engineering study, the multi-media and their contents will be applied to teaching methods, at first needing to provide concept and educational expecting effect of them. For multi-media using teaching methods, the study suggests the following 4; (1) teaching method for instructional learning, (2) teaching method for detective learning by guild, (3) teaching method for receptive loaming, (4) teaching method for exploration. Challenges still remained is to examine principles of teaching planning and relevant theories in order to apply the multi-media for the existing education, which should ask teachers in field to select more efficient teaching methods.

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The Application of Convergence lesson about Private Finance with Life Science subject in Mongolian University (몽골대학에서 개인 금융과 올바른 삶 교과간 융합수업 적용)

  • Natsagdorj, Bayarmaa;Lee, Kuensoo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.12
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    • pp.872-877
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    • 2018
  • STEAM is an acronym for Science, Technology, Engineering, Arts, and Mathematics. It is considered important to equip students with a creative thinking ability and the core competences required in future society, helping them devise new ideas emerging from branches of study. This study is about the convergence of instructional design in private finance for the life sciences, which aims to foster talent through problem-based learning (PBL). Skills like collaboration, creativity, critical thinking, and problem solving are part of any STEAM PBL, and are needed for students to be effective. STEAM projects give students a chance to problem-solve in unique ways, because they are forced to use a variety of methods to solve problems that pop up during these types of activities. The results of this study are as follows. First is the structured process of convergence lessons. Second is the convergence lesson process. Third is the development of problems in the introduction of private finance and the life sciences for a convergence lesson at Dornod University. Learning motivation shows the following results: understanding of learning content (66.6%), effectiveness (63.3%), self-directed learning (59.9%), motivation (63.2%), and confidence (63.3%). To make an effective model, studies applying this instructional design are to be implemented.

Exploring Pre-Service Earth Science Teachers' Understandings of Computational Thinking (지구과학 예비교사들의 컴퓨팅 사고에 대한 인식 탐색)

  • Young Shin Park;Ki Rak Park
    • Journal of the Korean earth science society
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    • v.45 no.3
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    • pp.260-276
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    • 2024
  • The purpose of this study is to explore whether pre-service teachers majoring in earth science improve their perception of computational thinking through STEAM classes focused on engineering-based wave power plants. The STEAM class involved designing the most efficient wave power plant model. The survey on computational thinking practices, developed from previous research, was administered to 15 Earth science pre-service teachers to gauge their understanding of computational thinking. Each group developed an efficient wave power plant model based on the scientific principal of turbine operation using waves. The activities included problem recognition (problem solving), coding (coding and programming), creating a wave power plant model using a 3D printer (design and create model), and evaluating the output to correct errors (debugging). The pre-service teachers showed a high level of recognition of computational thinking practices, particularly in "logical thinking," with the top five practices out of 14 averaging five points each. However, participants lacked a clear understanding of certain computational thinking practices such as abstraction, problem decomposition, and using bid data, with their comprehension of these decreasing after the STEAM lesson. Although there was a significant reduction in the misconception that computational thinking is "playing online games" (from 4.06 to 0.86), some participants still equated it with "thinking like a computer" and "using a computer to do calculations". The study found slight improvements in "problem solving" (3.73 to 4.33), "pattern recognition" (3.53 to 3.66), and "best tool selection" (4.26 to 4.66). To enhance computational thinking skills, a practice-oriented curriculum should be offered. Additional STEAM classes on diverse topics could lead to a significant improvement in computational thinking practices. Therefore, establishing an educational curriculum for multisituational learning is essential.

Development of Convergence Education Program for Elementary School Gifted Education Based on Mathematics and Science (초등학교 영재교육을 위한 수학·과학 중심의 융합교육 프로그램 개발)

  • Ryu, Sung-Rim;Lee, Jong-Hak;Yoon, Ma-Byong;Kim, Hak-Sung
    • Journal of the Korea Convergence Society
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    • v.9 no.10
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    • pp.217-228
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    • 2018
  • The purpose of this study is to develop STEAM program for gifted education by combining educational contents of humanities, arts, engineering, technology, and design into various subjects, focusing on mathematics-science curriculum of elementary school. The achievement standards and curriculum contents of elementary mathematics-science curriculum were analyzed while considering 2015 revised national curriculum. And then, a 16 class-hour convergence education program consisting of 3-hour block time was developed by applying the STEAM model with 4 steps. The validity of the program developed through this process was verified, and four educational experts evaluate whether the program can be applied to the elementary school. Based on the evaluation results, the convergence education program was finalized. As a result of implementing the gifted education program for mathematics-science, students achieved the objectives and values of convergence education such as creative design, self-directed participation, cooperative learning, and interest in class activities (game, making). If this convergence education program is applied to regular class, creative experiential class, or class for gifted children, students can promote their scientific creativity, artistic sensitivity, design sence, and so on.

A Case Study of an ENACT Model-based Engineering Design Online Course for Fostering Social Responsibility of Engineers (사회적 책임의식 함양을 위한 ENACT 모형 기반 기초설계 교과목의 비대면 수업 운영 사례)

  • Kim, Gahyoung;Ok, Seung-Yong;Lee, Hyunju;Ko, Yeonjoo;Hwang, Yohan
    • Journal of Engineering Education Research
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    • v.24 no.6
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    • pp.3-19
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    • 2021
  • This study aimed to introduce a case study of a basic engineering design course using the ENACT model for fostering social responsibility of engineers, and to investigate the educational effects of the course. Since the ENACT model was designed to encourage STEM college students to pursue responsible problem solving based on their understanding of socioscientific issues, we assumed that it would be beneficial for engineering students to foster their social responsibility as well as their understanding of science/engineering-related issues. A total of 49 engineering students who enrolled in the course participated in the study. Data included students' course artifacts, reflection papers, and responses to survey questionnaires. Results indicated that the students became more aware of nature of science and technology after the program, and began to solve the problems while considering the views of multiple stakeholders. They highly valued the experience of communicating with others as engaging in the civic activities. They also expressed high satisfaction and feeling of achievement on the course learning. We expect the ENACT model to be an effective teaching guideline that fosters the social responsibility of engineering students and furthermore, engineering ethics.