Cooperative Learning Instructional Activities in a Capstone Design Course

In developing our capstone design course, we decided to include instruction in design methodology, project management, engineering communications, and professional ethics, along with a comprehensive design project. As this course evolved over a number of years, we found that active and cooperative learning was critical for effective instruction in these topics and we developed a series of instructional activities using this methodology. These activities consisted of short presentations (mini‐lectures) with interspersed team exercises. We describe our course, these instructional activities, and some evaluation data showing that our students found them effective and important. Our experiences convinced us that the cooperative learning approach both enhanced our students' understanding of these topics and encouraged them to incorporate the associated skills into their working skill set. Including team exercises that dealt with various steps in the design process provided a “jump‐start” on these unfamiliar activities in a structured, short duration exercise environment in class. Listening to presentations by other teams and reviewing and discussing another team's results as a part of the team exercises provided an opportunity to see and think about different formulations of the problem they just considered.     

Design and Evaluation of Problem Solving Courseware Modules for Mechanics of Materials

Problem solving courseware modules have been developed for students of mechanics of materials. The modules offer students: a better grasp of fundamental principles, an intuitive sense of the meaning of key quantities, and fluency in using relations to solve problems. Students use modules independently and submit electronic log files to instructors who can monitor their progress. Field‐testing of the modules was conducted over a two‐year period at three distinct educational institutions, with 318 students. Courseware users scored as well as or outperformed their non‐using peers on nearly all objective measures of learning, with differences being statistically significant in some cases. Eighty‐eight percent of users found the courseware helpful for learning. After completing one required module, 48 percent of students continued using the courseware, voluntarily, as a reference guide to theory, as a coach for mastering and reviewing basic skills, and as a self‐diagnostic tool, to help with regular homework assignments.     

Lessons Learned: Implementing the Case Teaching Method in a Mechanical Engineering Course

Background Case studies have been found to increase students' critical thinking and problem‐solving skills, higher‐order thinking skills, conceptual change, and their motivation to learn. Despite the popularity of the case study approach within engineering, the empirical research on the effectiveness of case studies is limited and the research that does exist has primarily focused on student perceptions of their learning rather than actual learning outcomes. Purpose (Hypothesis ) This paper describes an investigation of the impact of case‐based instruction on undergraduate mechanical engineering students' conceptual understanding and their attitudes towards the use of case studies. Design /Method Seventy‐three students from two sections of the same mechanical engineering course participated in this study. The two sections were both taught using traditional lecture and case teaching methods. Participants completed pre‐tests, post‐tests, and a survey to assess their conceptual understanding and engagement. Results Results suggested that the majority of participants felt the use of case studies was engaging and added a lot of realism to the class. There were no significant differences between traditional lecture and case teaching method on students' conceptual understanding. However, the use of case studies did no harm to students' understanding while making the content more relevant to students. Conclusions Case‐based instruction can be beneficial for students in terms of actively engaging them and allowing them to see the application and/or relevance of engineering to the real world.     

An Engineering Major Does Not (Necessarily) an Engineer Make: Career Decision Making Among Undergraduate Engineering Majors

This study uses a mixed‐methods design to investigate students' career decision making at two U.S. undergraduate institutions. The research question was, “To what extent do students who complete undergraduate programs in engineering intend to pursue engineering careers?” We surveyed senior engineering majors about their post‐graduate intentions, and later interviewed a subset of the seniors about their career intentions. Only 42 percent of students surveyed reported that they definitely intended to pursue a career in engineering, 44 percent were unsure, and 14 percent were definitely not pursuing engineering. We observed significant institutional differences. Interview data reveal the quixotic nature of many students' decisions about their careers; strikingly, students were vacillating between multiple post‐graduate options late into the senior year, even into summer. Implications are discussed for further research and ways engineering departments can influence students' career decisions.     

Evaluation of Instructional Design of Computer‐Based Teaching Modules for a Manufacturing Processes Laboratory

Studies concerning student preferences and student learning as a function of the instructional design and delivery of a computer‐based teaching (CBT) module are presented. The studies were conducted in conjunction with the development of twenty‐one CBT modules for an Introduction to Manufacturing Processes laboratory that emphasized metal removal. Study results indicate there is no statistically relevant difference in learning between students using material presented with traditional multimedia (35 mm slides and cassette tapes) and the identical material presented with digital multimedia. Engineering students' preferences for interface design and audio‐visual information presentation are also presented. The most important result is that learning outcomes of a reader‐driven CBT module were found to be statistically lower than those associated with author‐driven CBT module, especially for average and below‐average students. These results suggest that if students must absolutely understand material, e.g., laboratory safety, the CBT should be author‐driven. Based on these results, we speculate that average and below average engineering students are more linear learners. A hybrid scheme, where information presentation transitions from an author‐driven to a reader‐driven environment may help weaker students develop better non‐linear, open‐ended problem solving skills.     

Effectiveness of Challenge‐Based Instruction in Biomechanics

Studies were designed to determine the effectiveness of challenge‐based instruction (CBI) versus traditional lecture‐based instruction. Comparisons were made over a three‐year period between student performance on knowledge‐based questions in courses taught with taxonomy‐based and challenge‐based approaches to instruction. When performance on all questions was compared, CBI classes scored significantly better than control classes on 26 percent of the questions, while control classes outperformed CBI classes on eight percent of the questions, but there was no significant difference in overall performance. However, students in CBI classes performed significantly better than students in control classes on the more difficult questions (35 percent versus four percent). We attribute these differences to additional opportunities available in CBI classrooms for learners to examine their conceptual understanding. Student surveys indicate a slight preference for the challenge‐based approach. We believe that the challenge‐based approach is effective and has the potential to better prepare students for the workplace and for life‐long learning.     

Assessing Adaptive Expertise in Undergraduate Biomechanics

This paper describes the design, development, implementation, and assessment of a multimedia‐based learning module focused on biomechanics. The module is comprised of three challenges and is based on a model of learning and instruction known as the How People Learn (HPL) framework. Classroom assessment of the first challenge was undertaken to test the hypothesis that the HPL approach increases adaptive expertise in movement biomechanics. Student achievement was quantified using pre‐ and post‐test questionnaires designed to measure changes in three facets of adaptive expertise: factual and conceptual knowledge and transfer. The results showed that the HPL approach increased students' conceptual knowledge as well as their ability to transfer knowledge to new situations. These findings indicate that challenge‐based instruction, when combined with an intellectually engaging curriculum and principled instructional design, can accelerate the trajectory of novice to expert development in bioengineering education.     

Study of Instructional Modes for Introductory Computing

The School of Engineering at Vanderbilt University requires all engineering students in their first semester to take a course that introduces computers in engineering. Two questions arise: is the best setting in which to teach this type of material either a combination of lecture and laboratory or all‐laboratory; and does a student‐owned laptop computer contribute more to learning? For two years the course was organized with these two different modes of instruction. For a third year the students learned in the all‐laboratory environment and 30 percent of the students used their own laptop computer. At the end of the semester an in‐depth questionnaire with quantitative ratings was given to the students to determine if there were differences in their learning preferences. Contingency tables were used to compare responses. There were several statistically significant differences in student responses favoring the all‐laboratory mode and students using laptop computers. Several of them are: the students are much more comfortable with computers at the end of the semester; either laboratory or working by oneself were the preferred settings for learning; and lecture was not a preferred setting for learning any topic.     

The Effects of a First‐Year Engineering Design Course on Student Intellectual Development as Measured by the Perry Scheme

In response to the demand for enhanced design, problem‐solving, and team skills in engineering graduates, Penn State has instituted a number ofteam‐based, project‐learning courses, including one taken by nearly every first‐year engineering student. To determine the impact of these experiences on our students we have begun a cross‐sectional and longitudinal study of their intellectual development based upon the Perry model. In this paper, we describe the research methodology and results for the initial group of first‐year students interviewed. The results of the study include the effects on intellectual development of the first‐year design course, gender, honors status, and the students' academic ability as indicated by SAT scores and grade point average. Design experience was positively related to enhanced intellectual development. Honors status, gender, and academic ability were not significantly related to Perry rating. We discuss the implications of these findings for instruction and curricular reform.     

Pre‐college Electrical Engineering Instruction: The Impact of Abstract vs. Contextualized Representation and Practice on Learning

Background While engineering instructional materials and practice problems for pre‐college students are often presented in the context of real‐life situations, college‐level texts are typically written in abstract form. Purpose (Hypothesis ) The goal of this study was to jointly examine the impact of contextualizing engineering instruction and varying the number of practice opportunities on pre‐college students' learning and learning perceptions. Design/ Method Using a 3 × 2 factorial design, students were randomly assigned to learn about electrical circuit analysis with an instructional program that represented problems in abstract, contextualized, or both forms, either with two practice problems or four practice problems. The abstract problems were devoid of any real‐life context and represented with standard abstract electrical circuit diagrams. The contextualized problems were anchored around real‐life scenarios and represented with life‐like images. The combined contextualized‐abstract condition added abstract circuit diagrams to the contextualized representation. To measure learning, students were given a problem‐solving near‐transfer post‐test. Learning perceptions were measured using a program‐rating survey where students had to rate the instructional program's diagrams, helpfulness, and difficulty. Results Students in the combined contextualized‐abstract condition scored higher on the post‐test, produced better problem representations, and rated the program's diagrams and helpfulness higher than their counterparts. Students who were given two practice problems gave higher program diagram and helpfulness ratings than those given four practice problems. Conclusions These findings suggest that pre‐college engineering instruction should consider anchoring learning in real‐life contexts and providing students with abstract problem representations that can be transferred to a variety of problems.     

Essential Non‐Technical Skills for Teaming

The world of engineering is once again changing. Engineering education is changing from the narrow engineering science curriculum of the 1950s to a broader industry‐driven curriculum. Today's employers are seeking engineering graduates with advanced communication skills and the ability to work effectively in team‐based environments. Unfortunately, a large number of undergraduate engineering programs are not sufficiently providing students the skills necessary to succeed in the workplace of the future. In this paper 20 non‐technical skills, 10 curricular changes, and seven post‐graduate training methods were presented to Southern Illinois University at Carbondale College of Engineering graduates to evaluate. These graduates functioned both in team‐based and traditional work environments. Results indicated listening as the most important non‐technical skill; inclusion of real‐world applications as the most important curricular addition, and mentoring as the preferred post‐graduate method of learning nontechnical skills. The findings support further research for implementing changes in undergraduate engineering education to integrate and support development of non‐technical skills throughout undergraduate studies. These changes will in turn increase the production of well‐rounded and flexible graduates that are “workforce‐ready.“     

Assessment of an Engineering Ethics Video: Incident at Morales

A new engineering ethics video, Incident at Morales, was assessed with two different instruments: the standard Defining Issues Test and a short ad hoc survey. According to pre‐tests and post‐tests with the Defining Issues Test, viewers of the video increased the sophistication of their moral reasoning skills. According to the survey, viewers changed their opinions about the most important responsibilities of engineers and about meeting environmental regulations when working overseas. From these results, it appears that the video is an effective approach to teach engineering ethics.     

Effectiveness of an Internet‐Based Graduate Engineering Management Course

This research provides engineering educators analytical evidence as to the effectiveness of Internet‐based course instruction. The research examined the University of Missouri‐Rolla's Internet‐based Advanced Production and Operations Management course, with a focus on determining the effectiveness of the Internet‐based education tools used. Over 100 students in five Internet‐based classes and one traditional, in‐class control group were given three sets of surveys, learning style assessments, a course pre‐test, and a course final examination. Multiple conclusions were drawn from this study based on analyses of the data collected. First, the Internet‐based students performed equally as well as the control group as measured by the difference between pre‐test and post‐test scores. Second, the Internet‐based students were found to have had exaggerated time requirement expectations for taking a course in the Internet environment. Third, the students rated the effectiveness and satisfaction positively for the Internet classroom format. Initially, the Internet‐based students were skeptical of electronic lectures but their experiences were positive.     

The Role of Collaborative Reflection on Shaping Engineering Faculty Teaching Approaches

Over the last several years, engineering faculty and learning scientists from four universities worked in collaboration to develop educational materials to improve the quality of faculty teaching and student learning. Guided by the How People Learn (HPL) framework, engineering faculty worked in collaboration with learning scientists to develop learner‐centered, student‐focused instructional methods. In consultation with learning scientists, engineering faculty carried out educational inquiry in their classrooms aimed at investigating student learning and enhancing instruction. In this paper we discuss the extent to which faculty engaged in these collaborative endeavors and how their teaching approaches differed as a result of their level of engagement. Study findings reveal the role that collaborative reflection plays in shaping teaching approaches. Results from this study provide insights for researchers and other practitioners in engineering and higher education interested in implementing engineering faculty development programs to optimize the impact on teaching.     

Efficacy of Interactive Internet‐Based Education in Structural Timber Design

While traditional teaching methods (e.g., real‐time, synchronous lectures) have proven effective for training future engineers, the Internet provides an avenue to reinforce the material and augment student learning, comprehension, and retention of material. This paper presents the integration and assessment of a library of interactive instructional modules specifically for a senior‐level undergraduate elective course in civil engineering. An ongoing, comprehensive assessment process was implemented in the fall 1999 semester. The results of this quantitative assessment indicate that the use of well designed and pedagogically sound Internet‐based supplemental modules provide students with a better understanding of course material. However, when Internet‐based content does not promote critical thinking, little increase in the student performance and understanding of the material is realized. Interactive Web‐based instruction should not be viewed as a “replacement” to traditional instruction, but rather a tool that provides a broader and more dynamic environment for students with a variety of learning styles.     

Ethics Instruction in Engineering Education: A (Mini) Meta‐Analysis

What are the objectives of engineering ethics? How is it being taught and how might instruction be more effective? The American Society for Engineering Education (ASEE) annual conference proceedings (1996–1999) contain 42 papers that treat engineering ethics as a coherent educational objective. Some of these papers disclose small components that seem to be part of a larger ethics curriculum. Other papers discuss engineering courses that are clearly the department's major ethics commitment. While it would be inappropriate to assume that the 42 papers represent the only means by which engineering students receive ethics instruction, these papers do present a variety of more‐or‐less defensible approaches and certainly the major intentional approaches of engineering curricula. This paper will develop an analysis of the 42 articles, including a discussion of where ethics is being taught (from both a chronological, and disciplinary perspective), and the six pedagogical approaches used to transfer an understanding of ethics to the student. These approaches include professional codes, humanist readings, theoretical grounding, ethical heuristics, case studies, and service learning. These six approaches will also be analyzed in terms of their promise to develop the ethical competencies needed by engineers.     

Investigating the Effect of 3D Simulation Based Learning on the Motivation and Performance of Engineering Students

Background Simulation‐based Learning (SBL) was used in Machining Technology, a sixty‐hour module for second year engineering students, at the School of Engineering at Temasek Polytechnic. The aim of this study was to investigate the effect of SBL on learners' motivation and performance. In assessing students' motivation, we adopted a framework based on the Self‐determination Theory (SDT), chosen on account of its comprehensive treatment of the relationship between students' perceived needs satisfaction and their motivation. Purpose (Hypothesis ) It is hypothesized that SBL, which provides learners with interactive learning experiences, will enhance students' motivation and performance. We explored the effect of SBL on students' perceived psychological needs satisfaction, motivation, and learning, and how SBL affected students' understanding and application of content knowledge. Design /Method The intervention procedure involved the incorporation of SBL in Machining Technology, a 60 hour module in the mechanical engineering program. Survey findings and post‐intervention assessment outcomes were used to assess the students' perceptions of their basic psychological needs satisfaction, motivation, and performance. Results Our findings suggest that the students perceived their psychological needs to be satisfied and had high levels of self‐determined motivation. Students who undertook SBL had higher mean performance test scores, although SBL may have differential effects on learners depending on factors such as gender, educational backgrounds, and IT knowledge. Conclusions Our findings suggest that the students perceived their basic psychological needs to be met and that SBL can potentially enhance self‐determined motivation as well as improve learning in general.     

The ABET “Professional Skills” — Can They Be Taught? Can They Be Assessed?

In developing its new engineering accreditation criteria, ABET reaffirmed a set of “hard” engineering skills while introducing a second, equally important, set of six “professional” skills. These latter skills include communication, teamwork, and understanding ethics and professionalism, which we label process skills, and engineering within a global and societal context, lifelong learning, and a knowledge of contemporary issues, which we designate as awareness skills. We review these skills with an emphasis on how they can be taught, or more correctly learned, citing a number of examples of successful and/or promising implementations. We then examine the difficult issue of assessing these skills. We are very positive about a number of creative ways that these skills are being learned, particularly at institutions that are turning to global and/or service learning in combination with engineering design projects to teach and reinforce outcome combinations. We are also encouraged by work directed at assessing these skills, but recognize that there is considerable research that remains to be done.     

Classes That Click: Fast,Rich Feedback to Enhance Student Learning and Satisfaction

Background Our goal is to improve student learning in foundation engineering courses. These courses are prerequisite to many higher‐level courses and are comprised of critically needed concepts and skills. Purpose (Hypothesis ) We hypothesize that learning is improved by providing rapid feedback to students on their understanding of key concepts and skills. Such feedback also provides students with insight into their strategies for learning. Design /Method In two consecutive years, we conducted this study in two sections of a lower‐level engineering mechanics course, Statics. One author taught both sections and a crossover design of experiment was used. In a crossover design, one section was randomly chosen to receive feedback with handheld computers (the “treatment” group) while the other received the “control,” which was either a feedback system using flashcards (in year 1) or no feedback (year 2). After a certain period, the two sections swapped the treatment and control. Student performance on a quiz at the end of each treatment period provided the data for comparison using an analysis of variance model with covariates. Results Findings from year 1 showed that there was no significant difference using either rapid‐feedback method. In year 2 we found a significant and positive effect when students received feedback. Conclusions This is a noteworthy finding, albeit within the constraints of the environment in which we conducted the study, that provides more evidence for the value of rapid feedback and the currently popular “clickers” that many professors are employing to promote classroom interaction and student engagement.