Spatial Configuration Ability Training in Engineering Graphics Course Using CAD Software

Through the introduction of Problem Based Learning (PBL) teaching method in the teaching session of engineering graphics courses, the path of implementation of PBL teaching method integrated with computer 3-D modeling in engineering graphics courses is discussed. The practice applications show that this teaching mode can help students master the knowledge points of engineering graphics courses, help teachers change the traditional teaching style, improve the teaching quality of engineering graphics courses, help students develop spatial image thinking ability and stimulate learning interest and innovative thinking. Compared with traditional classroom teaching, the teaching methods and teaching models studied in this article have obvious advantages in the implementation of such courses. They are also an important direction for the teaching reform of computer-aided engineering graphics courses in the future. Construction and development have good reference significance.

Spatial visualization skills are crucial in engineering fields and are required to support the spatial abilities of engineering students. Instructors in engineering colleges indicated that freshmen students faced difficulties when visualizing models in engineering graphics. Students cannot correctly understand and process visual object and mental images of the engineering models. Traditional tools using textbooks, physical models, and modeling techniques is not sufficient for improving the spatial visualization skills of engineering students. This paper is a survey of all techniques used to learn freshmen students in engineering graphics and improve their spatial visualization skills. Also, it presents the method of evaluation the spatial visualization skills. After describing techniques and presented the literature review, this work presents a comparison between methodologies and techniques used in previous studies. Finally, we summarize a road of the map for the techniques and strategies to improve the spatial visualization skills for freshmen engineering students.

This paper presents the implementation of Project Based Learning for diploma First year Mechanical Engineering students for Engineering Graphics course. Engineering Graphics course is an important basic communication tool of engineers. The concepts of graphical language are used in expressing the ideas, conveying the instructions, which are used in carrying out the jobs on the sites, shop floor. It is expected that the students should develop the idea of visualizing the actual object or part on the basis of drawings and blue prints. Traditional learning styles in classroom education are questionable and lacking in providing the necessary tools needed by the students to meet ever growing demands of industries. This paper aims to demonstrate improved student learning outcomes and increased student participation using active learning tools. The performance of the students of two consecutive batches is compared where for one batch this technique is not used and for other the technique is implemented. This consideration concludes that project-based learning is the best way to fulfil industry needs and it will facilitate students to innovatively and creatively transfer their knowledge to the real world situation.

The goal of this study is to evaluate the use of SolidProfessor in an Engineering Graphics course at Georgia Southern University.SolidProfessor is an online resource with built-in video tutorials and lessons for engineering training with an emphasis on CAD courses.Instructors can use prebuilt lesson plans, customize lesson plans or create their own lesson plans.The lesson plans include a baseline test and a review test.

In this study, the popular Purdue Spatial Visualization Test – Visualization by Rotations (PSVT-R) in isometric drawings was recreated with CAD software that allows 3D solid modeling and rendering to provide more realistic pictorial views. Both the original and the modified PSVT-R tests were given to students and their scores on the two tests were compared to investigate whether there was improvement in performance on spatial visualization tests with realistic 3D views. The study involved 157 first year community college students in engineering and technology majors and 34 high school seniors from a technical careers high school, all of whom were taking an engineering graphics course or a CAD course at the college when taking the tests. The test scores were analyzed in four groups: graphics classes, CAD classes, high school students, and a comparison group. In all four groups, the mean scores of the realistic 3D test were higher than the mean scores of the isometric test, which shows enhanced performance on the spatial visualization test with realistic 3D views.

The 1990’s have seen a rapid expansion of the use of networked computers on college and university campuses. By the Fall of 1995, half of all college students and faculty had recurring instructional experience with information technology while more than half of all college students and three-fourths of faculty had access to the Internet and WWW. This infusion of computer technology has had a significant impact on how and what students are taught in engineering design graphics. Though the establishment of computer labs on campuses has hit near saturation, instructional issues concerning the use of computers in engineering graphics are still evolving. As more and more instructional activity takes place outside of traditional labs via distance education technologies, what access students have to computing resources at their homes or dorms and what computer skills they possess to use these computer-based tools becomes increasingly important. Instruction taking place outside of traditional computer labs provides fewer opportunities for instructors to provide remediation in computer skills. This paper will report on a survey of students enrolled in engineering design graphics courses at NC State University the Fall 1999 semester. The results of this survey provides a snapshot of how prepared students currently are to make use of computer-based instruction within and outside of traditional labs. I. Introduction The instruction of engineering design graphics has always been closely linked to technology. Whereas the technology used to be based on manual instruments such as compasses, T-squares, and triangles, in more recent years the tool of choice has been computer-based CAD systems. What has not changed at many institutions has been the centering of the engineering design graphics curriculum around the on-campus laboratory. While the focus of the lab has shifted from instruction in manual instruments to computer-based CAD software, pedagogically the strategy has continued to be one-on-one interaction in a laboratory environment between an instructor/tutor and the student. With the rapid expansion of networked computer technology on and off campus and the instituting of distance education courses, the question arises how this lab-based model will evolve and whether our student body is prepared for a possible move away from the current oneon-one instruction they are receiving. This article outlines current trends in campus computing, the current state of computer literacy of students taking engineering graphics courses, and curricular issues impacted by these findings.

Evaluation of the Engineering Graphics Course Outcomes using Multi-Choice Questions

The thesis provides a general thinking of offering engineering graphics course by analyzing the characteristics of Industrial Engineering subject: 1) Graphics courses ought to be standard into “engineering graphics” or “engineering drawing”; 2) Standard teaching material should be made. State Ministry of Education or universities may organize experts to compile a standard teaching material considering IE characteristics, necessary class hours being flexible for various schools. CAD or CPD materials can also be compiled or adapted from available resources; 3) Shortness of Qualified Teachers; 4) Considering the present shortage of the teachers that have overall knowledge about mechanics, civil construction and electric graphics, relevant factories and companies may develop multimedia courseware that integrates the above-mentioned knowledge and supply them for teaching use; 5) School hours of the course can be increased reasonably. The school hours needed in CAD could be involved. Two teaching materials, of engineering graphics and CAD, may be adopted. It is the best for one teacher to carry out the course. Well, two teachers are acceptable if situation doesn't permit.

Abstract: All new students at the University of Prishtina “Hasan Prishtina”, Faculty of Mechanical Engineering, take an Engineering Graphics course in the first semester. The subject is divided into two sections: Technical Drawing and Descriptive Geometry. To teach lectures, professors use didactic equipment such as LCD projectors and drawing on the table. Assistants demonstrate exercises by drawing mechanical parts in the table. In 2014, teachers began using digital presentations with animations in their lectures. They contain developed presentations using PowerPoint software with stepby- step animations of mechanical parts. The paper examines the effectiveness of this methodology from both the student and teacher perspectives. The study is based on a survey of students, teachers’ experiences, and a comparison of exam results. The analysis discusses the methodology's effectiveness, presentation quality, knowledge gained, ease of learning, impact on exam pass rate, and other benefits.The following are some key findings from this paper: students accept and favor this teaching methodology; it is more effective than hand drawing; it has a significant impact on exam pass rates; and it is simple to understand the lectures. Teachers like this methodology because it allows for step-by-step explanation with animations; repeating options; presentations are created only once, easy corrections, developing many examples of mechanical parts with less effort, and students can easily access them. The paper contributes to a new teaching methodology for students in their first year of Engineering studies, Bachelor level, in the subject of Engineering Graphics. Keywords: Engineering graphics, Teaching methodology, Digital presentations, Animations, Higher education, Teaching survey.

In the face of the requirement for professional skills in modern design processes such as mass customization and digital design techniques, our teaching of engineering graphics to engineering student needs to adapt. This paper proposes a new curriculum for an engineering graphics course, which combines traditional engineering graphics with modern digital design technologies. The paper highlights the need for training in innovative design, team cooperation and graphical communication.

This research investigates the effectiveness of Simulation-Based Learning (SBL) in enhancing student comprehension of complex mechanical engineering concepts, such as fluid dynamics, thermodynamics, FEA, and mechanics. The integration of tools like MATLAB, SolidWorks, ANSYS Fluent, AutoCAD, FluidSim, BricsCAD, and GeoGebra allows students to simulate theoretical mechanics and engineering graphics, bridging the gap between theory and practice. Additionally, Machine Learning playgrounds offer hands-on AI experience. A key novelty is the development of an Automatic Engineering Drawing Sheet Evaluation Algorithm, utilizing Python-based image processing to automate the assessment of technical drawings, increasing efficiency and accuracy. GeoGebra further serves as a tool for assessing geometric transformations in engineering graphics. Integrating simulation tools into the first-year Engineering Graphics course has significantly enhanced Course Outcomes (CO) and Program Outcomes (PO), particularly PO5 (Modern Tool Usage), with a 94.29% improvement. Tools like AutoCAD and GeoGebra have enhanced student understanding of Orthographic Projections and Isometric Views, reflected in improved test scores and positive feedback. Case studies showcase how these tools align with various POs, highlighting the critical role of SBL in modern mechanical engineering education

BackgroundA redesigned curriculum for teaching engineering graphics was adopted in an introductory mechanical engineering course. The rollout of this curriculum was staggered, allowing for comparisons of student perceptions across the newly revised and previous instructional approaches. The new curriculum borrows from content and pedagogy traditionally employed in industrial design courses. The discipline-based education research (DBER) framework was used to investigate the manner in which the new curriculum was implemented and student reactions to this change. By using this approach, the researchers were able to incorporate and emphasize the unique aspects of the subject matter itself, as well as the attributes of the engineering discipline in which the course was embedded.ResultsResults indicated that students exhibited positive reactions to the sketching instruction, as well as various other aspects of the course, and that reactions were generally more positive among students in the redesigned course.ConclusionsThe contributions of this paper are twofold: illustrating the application of a specific research framework and providing results of an investigation of a redesigned curriculum. The redesigned curriculum was generally received well by students, and the partnership between the education researchers and faculty proved fruitful in allowing for nuanced investigation of the course redesign. Practical considerations for undertaking this type of research are also outlined.

Part of a more extensive National Science Foundation-funded study, this study presents the findings and analysis of the effect on three-dimensional modeling self-efficacy (3DSE) by the inclusion of online active learning modules (ALM). Using multiple datasets, we found that the use of ALM in an introductory engineering graphics course, closed a gap in 3DSE scores between majority and minority students, populations historically underrepresented in engineering. Although limited to a single university, the results support that the inclusion of active online learning may address an important construct known to be a factor in academic success and persistence in engineering.

Students’ spatial visualization ability is a key component in understanding geometry, yet many students exhibit suboptimal performance in this area. This study aimed to (1) evaluate the quality of the Geogebra-assisted 6E-IM learning model, (2) examine its effect on students' spatial visualization ability, and (3) describe students' ability levels after receiving the intervention. A sequential explanatory mixed-methods design was used. The independent variable was the Geogebra-assisted 6E-IM model, while the dependent variable was students’ spatial visualization ability. A total of 60 students participated, with 30 assigned to the experimental group and 30 to the control group. Data were collected through tests, interviews, and questionnaires. Quantitative results showed that students in the experimental group significantly outperformed the control group (p < 0.05), indicating a positive effect of the Geogebra-assisted 6E-IM model on spatial visualization ability. Qualitative analysis revealed that students with high ability met all spatial visualization indicators; those with moderate ability met two indicators, while those with low ability met only one. These findings demonstrate that the integration of Geogebra in the 6E-IM learning model can effectively enhance students’ spatial visualization skills in geometry. This study contributes to the development of innovative, technology-integrated instructional strategies in mathematics education.

Introducing three-dimensional modeling technology into the teaching of modern engineering graphics is a hot topic for graphics areas in recent years. Three-dimensional geometric modeling principles, methods, and skills will be integrated and infiltrated to modern engineering graphics course, and this will form a new teaching theory, content and process with modern engineering graphics teaching trends. The teaching reform of modern engineering graphics in the three- dimensional modeling environment must be imperative. This paper analyzes the shortcomings of a traditional teaching system, and explores the teaching mode which three-dimensional modeling is as the mainline and integrates two-dimensional design. Also proposes a combination of teaching methods, and makes the exploration of teaching reform.