A Web‐based and Group Learning Environment for Introductory Environmental Engineering

The use of computer‐based technology is becoming more prevalent in the classroom. As a part of an educational research project sponsored by the GE Foundation, strategies for augmenting a course, Introduction to Environmental Engineering (CE 280), were investigated including cross‐disciplinary experiences in teamwork, design, and the use of advanced teaching technologies such as the web. Interactive tools to assist student learning were developed and refined. Efforts have focused on developing an extensive website, web‐based quizzes and homework assignments, and tutorials. Base groups were used to provide both intellectual and emotional support to students. This paper summarizes the development of this course and the impact of rapid feedback on the progression of student understanding.     

Student Performance and Acceptance of Instructional Technology: Comparing Technology‐Enhanced and Traditional Instruction for a Course in Statics

The College of Engineering at the University of Cincinnati has evaluated the use of instructional technologies to improve the learning process for students in fundamental engineering science courses. The goal of this effort was to both retain more students in engineering programs and improve student performance through appropriate use of technology. Four modes of instruction were used to teach an engineering fundamentals course in statics. A traditional instructor‐led course, a Web‐assisted course, a streaming media course, and an interactive video course were all presented using a common syllabus, homework, tests, and grading regimen. Evaluations of final course grades indicate that use of instructional technology improved student performance when compared with traditional teaching methods. Student satisfaction with technology varied considerably with the Web‐assisted format having the highest student approval rating of the technologies. The results indicate that time on task and interest in content can be improved through the appropriate use of technology.     

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.     

Kirkpatrick's Level 1 Evaluation of the Implementation of a Computer‐Aided Process Design Tool in a Senior‐Level Engineering Course

Computer simulation tools are frequently used in engineering design work, and undergraduates are often trained to use these tools as they learn to design systems. The use of new tools in the learning environment should be evaluated to assure that the students are able to use the tools effectively. This study details and demonstrates the use of a Kirkpatrick's Level 1 Evaluation to assess the effectiveness of an instructional environment in which students learn to use a computer simulation tool to perform engineering design work. Specifically, an evaluation was conducted to look at student perceptions of FOODS‐LIB—a steady‐state food process design tool, its user's manual learning modules, and the implementation of FOODS‐LIB in a senior level design course. This evaluation was triangulated with an instructor's assessment of student products generated as the students used the learning modules and designed an ice cream manufacturing process using FOODS‐LIB.     

Design for Stamping: Identifying Pedagogically Effective Components in Multimedia Tutors and the Classroom

Multimedia tutors have been developed for a number of different areas in manufacturing—including forging, die casting, and injection molding. Typically, students using these tutors perform better than students receiving traditional classroom instruction. However, the strengths and weaknesses of the tutors have not been isolated in any of the reports to date. This paper presents the results of experiments designed to isolate the most effective components used to teach design for stamping. The experiments compared classroom instruction with software tutorials. The results of these experiments indicate that the use of software tutorials when combined with feedback on graded homework assignments is as effective as traditional lectures that also make use of graded homework assignments     

Pedagogical Changes in the Delivery of the First-Course in Computer Science: Problem Solving,Then Programming

A teaching reform initiative, started in the spring semester of 1993 at the New Jersey Institute of Technology (NJIT), is described. The program seeks to increase student success in a freshman computer science course, and ultimately in the entire NJIT curriculum. The traditional teaching methods where the teacher presided over a lecture session supplying facts and figures, providing ideas, and presenting problems and their solutions, has been altered. The new learning environment described in this paper aims to create an all-inclusive setting inviting the students to make the transformation from passive learners to active participants. Rather than merely listening to lectures, students formulate problems and devise their own approaches to answering questions and finding solutions. Such a teaching/learning methodology requires instructional redesign and role redefinition. The presentation of class material is reordered as the teacher and students cross each other's confines becoming a more cohesive entity.     

Development of Online Ultrasound Instructional Module and Comparison to Traditional Teaching Methods

A Web‐based teaching device was constructed to deliver information on fundamentals of ultrasound imaging to approximately one‐half the students in an undergraduate medical imaging course, while the remaining students were taught the same material via traditional lectures and typed notes. The students participating in this study were separated randomly but in such a manner that prior achievement was statistically equivalent for the two groups. After approximately two weeks of instruction, an ultrasound imaging exam was administered. Results indicated no statistically significant difference in scores on homework assigned during the instructional period between the traditional and online groups. Similarly, there was no statistically significant difference in the average exam scores of students in the two groups. The traditional group required significantly more time on learning activities than did the online group. These results indicated that level of understanding was not affected by use of the online device, while efficiency of learning improved dramatically. Reasons reported by the students for the improved efficiency of the online method included flexibility in time usage and ability to cater to the individual, which came with the added responsibility of self‐discipline. The traditional teaching method, meanwhile, allowed interaction with and instant feedback from a professor and other students. In this study we have demonstrated that the nature of an online device yields a higher level of efficiency than traditional lectures, despite the inherent drawbacks of the approach. The effectiveness of this device could potentially be improved by implementing enhancements to increase the level of interaction for the user and to help with discipline and time management.     

Analytic Hierarchy Process for Evaluating Flipped Classroom Learning

In reality, the flipped classroom has gained popularity as a modern way of structuring teaching, where lectures move from in-class procedures to digitally-based assignments, freeing up the debate, and practice exercises class time. Therefore, it is essential to implement and analyze a way of teaching that will improve student performance. The paper aims to develop a model of the method of teaching science in Iraqi schools, and to assess whether teaching flipped classroom affects the achievement, motivation, and creative thinking of students by using the methodology of Multi-Criteria Decision Making (MCDM) in the Analytic Hierarchy Process (AHP). The AHP approach includes several steps, including setting assessment criteria and their weights, and by assessing the methodology of the flipped classroom as compared to the conventional cognitive learning process. An experiment was carried out in Iraqi secondary schools to examine the attitude of the students towards the subject of Chemistry. The findings have indicated that the students and teachers favored flipped classroom learning more than conventional cognitive learning. The study took the following parameters compared to the traditional approach: teaching techniques, learning flexibility, teaching aids effectiveness, student participation and working environment. This paper indicates that the teachers in Iraqi schools will be able to improve and do more preparation to shift towards flipped learning in the classroom.     

Instructional Module in Fourier Spectral Analysis,Based on Principles of “How People Learn”

This paper describes the design and evaluation of an instructional module for teaching/learning Fourier spectral analysis, with emphasis on biomedical applications. The module is based on the principles of “How People Learn” (HPL) as embodied in the Legacy cycle. This cycle is a particular instantiation of problem‐based learning and includes components explicitly aimed at providing context and motivation, facilitating exploration, developing in‐depth understanding, and incorporating opportunities for self‐assessment. In the spectral analysis module, traditional teaching methods are augmented with small group discussions, peer‐to‐peer learning, a Web‐based tutorial, and an interactive demonstration. Assessment included the development of rubrics for scoring student understanding of key concepts, revealing that students who used the module demonstrated better understanding relative to students who studied the material using traditional methods. Survey results and comments indicate that students generally liked the interactive tutorial and demonstration, as well as the structure provided by the HPL framework.     

Improving Visualization Skills of Engineering Graphics Students Using Simple JavaScript Web Based Games

A number of web‐based games were created using simple JavaScript code to teach visualization skills needed for a course in engineering graphics. The games are part of a comprehensive multimedia instructional CD‐ROM/web page that consists of an integrated web site with links to hours of tutorial movies, lecture presentations of class lectures, and a series of interactive web‐based quizzes. The web‐based games provide an interactive graphics based introduction to engineering graphics and a class design project. In addition, several games are devoted to the development of visualization skills in the areas of multiview drawings and pictorials, auxiliary views, the manipulation of objects and coordinate systems in a 3‐D coordinate space, and dimensioning and tolerancing. The games provide an interactive learning experience for students where tutorial animations specific to the students needs are interjected into the games. The feedback based on student input in the games allows the students to learn and apply new concepts simultaneously. The impact of the game pages on student understanding and the development of visualization skills have been positive as evidenced by improved performance on exams and positive feedback on surveys. The overall effectiveness of the instructional CD has also been positive, and this continues to be used and expanded.     

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.     

Do Online Students Perform as Well as Lecture Students?

This paper reports research on whether online delivery performs as well as traditional lecture delivery for a computer science course at North Carolina State University. The comparisons made are for two large sections of the course for which almost the only difference was that one section attended on‐campus lectures and the other did not. Where significant differences in outcomes appear for students who completed the course, they favor the online students. However, online students who started the course were less likely to complete it.     

A Flexible Multimedia Instructional Module for Introductory Thermodynamics

Instructional modules for introductory thermodynamics which are multifaceted and sufficiently flexible to adapt to the various learning styles of most engineering students are currently being developed at the University of Louisville. Flexibility is incorporated through the utilization of computer controlled interactive multimedia displays, which include full motion graphical images and sound. This technology makes it possible for the instructor to present information in a manner that is faster, more visually appealing, more organized, more detailed, and more open to student interaction than the student lecture format. The instructional modules under development will allow the instructor to implement several different types of classroom activity during a single class period. These include audio-visual presentations, problem solving sessions, and question and answer sessions using electronic acquisition of the student responses, as well as the usual lecture type of presentation. Parts of the module are available outside of the classroom as computer based tutorials. The module chosen for initial development was the “First Law of Thermodynamics for a Closed System.” The first version of this module has been completed and given preliminary trials in the classroom. This module includes optional material on the historical development of the first law of thermodynamics, and also a variety of optional problems, exercises, and short quizzes. Students have responded very favorably to the new system. Completion of the rest of the modules for the course is planned for the near future.     

Laptops in the Classroom: Do They Make a Difference?

In 1996 the College of Engineering at the University of Oklahoma started to require all incoming students to have a laptop computer equipped with a wireless Internet card. Because of a pilot study and a voluntary phase‐in over the first two years, two groups of students moved through the curriculum—those with and those without laptops. During 1998 and 1999, when these students entered their junior year, we offered two sections of a third‐year water resources course: one for students who owned laptops and one “traditional” section for those who did not own laptops. We assessed student performance to evaluate if the laptops helped improve student learning. Although not a perfectly controlled experiment (i.e., the student groups were different), the two sections were uniform in terms of course content and assignments. Because of their inherently large standard deviations, class metrics (grades) are not conclusive, but they do indicate that the laptop students performed slightly better than the non‐laptop students, even though their composite grade point average entering the course was lower. Evaluations do clearly show that, when the technology is used properly and when class time is not spent resolving technical problems, the laptop students had a more positive learning experience.     

Educational Innovations in Multimedia Systems*

Multimedia systems have emerged as one of the fastest growing segments of computing systems and thus need to be well integrated into a computer engineering curriculum. Fortunately the teaching and learning of multimedia systems can be aided with novel instructional techniques based on multimedia. The Multimedia Curriculum project at the University of Massachusetts Amherst is developing a unified set of instructional materials on the engineering techniques used in the design and test of hardware, software and networks for multimedia. This large project includes three facets: 1) multimedia instructional modules using web‐linked Digital Video Disks, 2) multimedia communication utilities to facilitate student interaction, and 3) multimedia component design projects. In this paper, we explain our approach to using multimedia as both content and instructional technology and briefly present preliminary results in each of the three facets.     

Teamed Internships in Environmental Engineering and Technology: A Project Report

This paper is a summary report of the “Teamed Internships Program” (TIP), an Advanced Technological Education (ATE) grant through the National Science Foundation (NSF). This three‐year project created internships encompassing regional industries, federal research facilities, and two‐ and four‐year educational institutions. The project cultivated teamwork and communication skills for environmental technician and engineering students, developed instructional materials, and provided valuable contacts with industry. To foster faculty and teacher enhancement and student interest in environmental science and technology, insights from the program were incorporated into instructional materials and educational modules for dissemination to local secondary schools.     

The National Effective Teaching Institute: Assessment of Impact and Implications for Faculty Development

Background The National Effective Teaching Institute (NETI) is a three‐day teaching workshop that has been given annually since 1991 in conjunction with the Annual ASEE Conference. Its goals are to improve the participants' teaching effectiveness, promote their engagement in scholarly teaching and educational scholarship, and motivate them to engage in instructional development on their campuses. To evaluate the impact of the NETI on its participants, a Web‐based survey was administered to alumni of NETI offerings from 1993 to 2006. Purpose (Hypothesis ) The study was designed to test the hypothesis that the NETI met its stated goals, and to the extent that it did, to identify factors in the workshop's structure and delivery that might have contributed to its success. Design /Method An online survey collected information regarding the participants' awareness and use of selected teaching strategies, their students' and their own ratings of their teaching, and their engagement in scholarly teaching, educational research, and giving their own teaching workshops and seminars. The validity of the survey structure is supported by several published studies that compared self‐assessments of teaching with external evaluations by trained observers. Results The NETI has motivated many of its participants to adopt or increase their use of proven teaching strategies known to correlate with improved student learning; made them more student‐centered, scholarly, and reflective in their teaching practice; and induced many of them to engage in instructional development and educational scholarship. Conclusions The NETI has satisfactorily met its goals. When interpreted in the light of a theory of adult motivation, the results support the effectiveness of discipline‐specific faculty development for engineering educators.     

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.     

Reversing the Lecture/Homework Paradigm Using eTEACH® Web‐based Streaming Video Software

A new online streaming video and multi‐media application called eTEACH, http:eTEACH.engr.wisc.edu was used to reform a large, lecture‐based computer science course for engineering majors. In‐class lectures were replaced with videotaped lectures and other materials that students viewed on the Internet on their own schedule, making it possible to use the live class periods for small, team problem‐solving sessions facilitated by the professors and a teaching assistant. By using the eTEACH application to transform course lectures into “homework” and free up the face‐to‐face class time for working on problems that were similar to homework assignments, the professors effectively reversed the lecture and homework paradigm of a typical large lecture course. A thorough course evaluation over two semesters showed that students who took the online lecture version of the course gave significantly higher ratings to all aspects of the course, including lecture usefulness, professor responsiveness, the course overall, and the instructor. Although a few students missed having the opportunity to ask questions during lectures, about two‐thirds of the 531 students surveyed felt it was easier to take notes and understand the lectures presented via eTEACH than it would have been while attending the same lecture live, and 78% of students appreciated the ability to view and review course lectures on their own schedule.     

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.