Conference Session

Capstone Design I

Collection

2012 ASEE Annual Conference & Exposition

Authors

Walter W. Schilling Jr., Milwaukee School of Engineering

Tagged Divisions

Design in Engineering Education

Engineering Design in an Exam EnvironmentAbstractOne of the most difficult aspects of engineering is the effective teaching of engineering design.While it is paramount that every engineering student be exposed to engineering design, it can bedifficult to assess the design skills of individual students. Most design assessment is typicallyconducted at the project or team level, and many assessments of design effectiveness only usethe capstone experience. This is clearly inadequate. Instead, what is needed is an effectivemethod that can be used to partially assess the design capabilities of individual students in anexam setting.This article will discuss an approach to assessing design skills in the exam environment

Conference Session

Approaches to Teaching Ethics

Collection

2012 ASEE Annual Conference & Exposition

Authors

Yilmaz Hatipkarasulu, University of Texas, San Antonio; Suat Gunhan, University of Texas, San Antonio

Tagged Divisions

Engineering Ethics

thatstudents can easily relate to. The example is built on a very simple question of whether thestudent would accept a job offer from a company under certain conditions.IntroductionEthics, social responsibility, and trust are critical issues for all professions in the builtenvironment including design, architecture, engineering and construction. Stakeholders ofbuilding construction projects recognize the importance of these issues through the creation ofthe codes of ethics and professional conduct. These codes are generally defined and enforcedthrough licensing organizations, professional societies or within individual companies or firms.For the built environment professions, the American Institute of Architect’s Code of Ethics andProfessional Conduct

Conference Session

Assessment in Graphics Education

Collection

2012 ASEE Annual Conference & Exposition

Authors

John Burke, University of Limerick

Tagged Divisions

Engineering Design Graphics

experienceexclusively in solid geometric modeling. Through the paradigm of Project Based Learning, ascaffolded approach encouraging student exploration and experimentation was employedacross the study. Page 25.26.2 Figure 1 - Parametric surface modeling Figure 2 - Freeform Polygonal modelingThe choice of software for each task was based on marketing material analysed from a rangeof software and claims on what they are designed to do, in addition to the researcher’sexperience having had success with both for similar design tasks. The parametric surfacemodeling program chosen for the study was SolidWorks 2011. For the

Conference Session

Remote and Network-based Laboratories

Collection

2012 ASEE Annual Conference & Exposition

Authors

Michael E. Auer, Carinthia Tech Institute, Austria; Danilo Garbi Zutin P.E., Carinthia University of Applied Sciences

Tagged Divisions

Division Experimentation & Lab-Oriented Studies

member of the Center of Competence in On- line Laboratories and Open Learning (CCOL) at the Carinthia University of Applied Sciences (CUAS), Villach, Austria, where he has been engaged in projects for the development of online laboratories. In Jan. 2010, Zutin was appointed Secretary General of the International Association of Online Engineering and in the following year Secretary General of IGIP (International Society for Engineering Education). Garbi Zutin is author or co-author of more than 30 scientific papers published in international journals, maga- zines, and conferences. Most of these papers are in the field of online laboratories and issues associated with their dissemination and usage

Conference Session

Ethical Issues II: Academic Integrity and Student Development

Collection

2012 ASEE Annual Conference & Exposition

Authors

Narciso F. Macia P.E., Arizona State University, Polytechnic; Robert W. Nowlin, Retired

Tagged Divisions

Engineering Ethics

, which compares general engineeringprograms in the United States [2]. Examples of universities in this category include HarveyMudd, Swarthmore, Smith College and ASU Polytechnic. Many of these programs try to imparta classical education to their graduates, in a more focused manner that by simply requiring thestudents to take a set of courses in the humanities.At ASU Polytechnic offers a multidisciplinary engineering degree, in which students take thesame coursework during the first two years, and from then on, the student begins to pursue theirchosen area of concentration. In addition, every semester, the students take a three- to 4-semester-hour project course, where they work in teams to design products and solve realisticengineering problems

Conference Session

The Transition from Secondary to College Mathematics

Collection

2012 ASEE Annual Conference & Exposition

Authors

Galen E. Turner III, Louisiana Tech University; Kelly B. Crittenden, Louisiana Tech University; James D. Nelson, Louisiana Tech University; Heath Tims, Louisiana Tech University

Tagged Divisions

Mathematics

Page 25.165.6attended this series of workshops and became a key target school for the college. For the year‟s 2001, 2002, 2003 AHS was consistently near the f-indices for these years, ranked 4th, 10th, and 8th, respectively. In 2004, three of the authors teamed up to pilot a new professional development program, with AHS, which became the demonstration project for the NSF funded LaTechSTEP2 program. In 2005 and 2006, AHS was ranked 2nd in the number of freshmen entering the college, and AHS remained ranked above the f-index for each year from 2005-06 through 2009-10. AHS is now considered one of our key feeder schools. 2000 2001 2002 2003 2005 2006 2007 2008 2009

Conference Session

Exploration of Trends in Engineering Education

Collection

2012 ASEE Annual Conference & Exposition

Authors

Mitchell L. Springer PMP, SPHR, Purdue University, West Lafayette; Michael J. Dyrenfurth, Purdue University, West Lafayette; Erin E. Bowen, Purdue University, West Lafayette; Mark T. Schuver, Purdue University, West Lafayette

Tagged Divisions

Graduate Studies

committees. Springer is internationally recognized, has authored nu- merous books and articles, and lectured on software development methodologies, management practices and program management. Springer received his bachelor’s of science in computer science from Purdue University, his M.B.A. and doctorate in adult and community education with a cognate in executive de- velopment from Ball State University. He is certified as both a Project Management Professional (PMP) and a Senior Professional in Human Resources (SPHR).Dr. Michael J. Dyrenfurth, Purdue University, West Lafayette Michael J. Dyrenfurth is a professor of industrial technology in the College of Technology at Purdue University. He is a member of the ASEE and

Conference Session

Retention of Women Students II

Collection

2012 ASEE Annual Conference & Exposition

Authors

Christel Heylen, Katholieke University, Leuven; Kathleen Geraedts, Katholieke University, Leuven

Tagged Divisions

Women in Engineering

. in engineering in Aug. 2010 from the Katholieke Univer- siteit, Leuven. She is a member of LESEC (Leuven Engineering and Science Education Centre), where she coordinates one of the four sectors, namely project-based learning.Dr. Ing. Kathleen Geraedts, Katholieke University, Leuven Faculty of Engineering, KU Leuven, Belgium Page 25.1278.1 c American Society for Engineering Education, 2012 The background and motivation of first year engineering students in relation to gender C. Heylen, K. Geraedts, I. Van Hemelrijck, M. Smet, J. Vander Sloten

Conference Session

Information and Network Security

Collection

2012 ASEE Annual Conference & Exposition

Authors

Alak Bandyopadhyay, Alabama A&M University; Neema Simon Sumari, Alabama A&M University

Tagged Divisions

Computing & Information Technology

Advanced Encryption Standard method isused for both transmitted and received transmissions. However, the data must be checked tomake sure it was sent or received properly. In order to check for errors in the protocols beginsent, a cyclic redundancy checker is used.Cyclic Redundancy Check (CRC) A cyclic redundancy checker (CRC) is an error detecting hash function code that issometimes referred to as polynomial code. The CRC is generally 16 to 32 bits long and is used tocheck data for any error before and after transmission. CRC’s are most commonly used to checkdata that is being sent over a network. For the solar tracker protocol used in this project, a 32 bitCRC is used to check the data packet being sent over the master/slave network for

Conference Session

New Research and Trends for Minorities in Engineering

Collection

2012 ASEE Annual Conference & Exposition

Authors

Nadgee Mar González García, University of Puerto Rico, Mayagüez; Laura Isabel Nieves, University of Puerto Rico, Mayagüez; Paola Beatriz Pacheco, University of Puerto Rico, Mayagüez; Rosaurelis Joanne Marín, University of Puerto Rico, Mayagüez; Aidsa I. Santiago-Román, University of Puerto Rico, Mayagüez

Tagged Divisions

Minorities in Engineering

, are not considered mainly because there is no access to them. Therefore, there is aneed to measure the efficacy of ECIs among underrepresented populations to determine itsvalidity and reliability. Traditionally, underrepresented populations score below nations’average on these instruments.5, 6To address this concern, in 2010 the National Science Foundation (NSF) funded a project whoseprimary objective is to test the efficacy of the Concept Assessment Tool for Statics (CATS)among bilingual engineering students from the University of Puerto Rico at Mayagüez (UPRM)(EEC-1032563). This study is composed of a 3-phase mixed method design, in which eachphase is guided by a specific objective and research question. Also, for this study we havedefined

Conference Session

New Classrooms, New Challenges II: Assessing Non-traditional Approaches

Collection

2012 ASEE Annual Conference & Exposition

Authors

Richard L. Zollars, Washington State University; Adam Scott Carter, Washington State University; Christopher Hundhausen, Washington State University

Tagged Divisions

Chemical Engineering

only material balances but now on areacting system, and one involving material and energy balances on reacting systems withrecycle. At each level there are two problems. The first is a typical problem where students aregiven a description of a process then asked to develop the process flow diagram and theequations needed to perform the material (and energy if necessary) balances. The secondproblem (a critiquing problem) consists of a problem statement, a process flow diagram, and aset of balance equations. The process flow diagram and the equations contain errors. Thestudents are asked to find the errors, explain why they are erroneous, and suggest a way to fix theerror.In order to build a community among the faculty commited to this project

Conference Session

International Engineering Education: Developments, Innovations, Implementations, and Pedagogical Challenges in Engineering Education

Collection

2012 ASEE Annual Conference & Exposition

Authors

Michael E. Auer, Carinthia Tech Institute, Austria; Arthur Walter Edwards, University of Colima

Tagged Divisions

International

related to the integration oflearning and work. 5Data from Australian and Portuguese surveys show that engineers tend to spend the majority oftheir working week (around 60%) engaged in activities which involve interaction with others(meetings, supervision, writing reports, etc.) and only around 40% is devoted to technicalengineering activity. • There are also new organizational aspects in engineering education6:On the one hand, engineering issues, either in industrial products or in engineering projects, arequickly becoming increasingly complicated and most of these issues cross disciplinary lines.On the other hand, the working environment is becoming more and more internationalized dueto the globalization of the world economy. Products are

Conference Session

NSF Grantees' Poster Session

Collection

2012 ASEE Annual Conference & Exposition

Authors

Suhas Ranganath, Arizona State University; Jayaraman J. Thiagarajan, Arizona State University; Karthikeyan Natesan Ramamurthy, Arizona State University; Shuang Hu; Mahesh K. Banavar, Arizona State University; Andreas S. Spanias, Arizona State University

Tagged Topics

NSF Grantees Poster Session

developed using the Java based AndroidSDK and is compatible with all Android devices. We described the architecture of theapplication and presented the DSP functions in A-JDSP. The current set of functions in theapplication will enable students to perform simulation exercises on convolution, Fourier analysisand filter design. The interface is highly interactive and the block diagrams can be constructedusing a simple space-and-route procedure. Finally, we described our planned assessments inorder to understand the impact of this application in performing DSP laboratories.AcknowledgementsThis project is supported in part by NSF award 0817596, the SenSIP center, and SprintCommunications

Conference Session

Developing Young Minds in Engineering: Part I

Collection

2012 ASEE Annual Conference & Exposition

Authors

Blair J. McDonald, University of Texas, Pan American

Tagged Divisions

Minorities in Engineering

attempt to get the new and at risk students to mingle with mature students and facultywithout enrolling them in a "special" program. The program's key objective is to get students toteach each other with mentors available to intervene only when necessary. In the Fall 2011 term,the project was started with virtually no funding. Laboratory space that was only being used20% of the time was made available to students to study in during the unused 80% of the classschedule.The motivation for this program and its objectives are discussed. Data collected following thefirst semester of operation is presented and discussed. Conclusions are drawn regarding theprograms impact on participating students.IntroductionStudents at every academic level are prone to

Conference Session

Recruitment and Retention Matters in Engineering Technology

Collection

2012 ASEE Annual Conference & Exposition

Authors

Brian P. DeJong, Central Michigan University; Dru M. Wilson Wilson, Central Michigan University

Tagged Divisions

Engineering Technology

Engineering (EGR120)in their first semester of freshman year. EGR120 is offered both semesters and currently has nopre- or co-requisite. Its syllabus covers introductory engineering material such as theengineering profession, disciplines, courses, problem solving, basic electrical and mechanicalconcepts, as well as two team-based design projects. For the first three years (2005-2006 to2007-2008 school years), the course was taught as one section; starting in the fourth year it wasbroken into smaller multiple sections to enhance professor-student interaction and studentlearning.EGR120 consistently draws relatively high enrollment (currently around 170 students per year),with 76% of the students taking the course in the fall. However, only 40-45 of

Conference Session

BIM and Virtual Construction Environments

Collection

2012 ASEE Annual Conference & Exposition

Authors

John Hildreth, University of North Carolina, Charlotte

Tagged Divisions

Construction

determine the appropriate prediction methods, • analyze their measured data and develop an appropriate model, and • predict operational performance.Thus, the students were able to demonstrate proficiency at the application, analysis, andsynthesis levels of Bloom’s taxonomy.Learning AssessmentThe course final exam question included a problem that was designed to assess student abilityregarding learning curves in the application, analysis, synthesis, and evaluation levels ofBloom’s taxonomy. Students were provided performance data from a prestressed concrete piledriving operation to provide foundational support for a highway bridge. The actual unit cost ofinstalling the piling was provided for 10 bridge bents. During the course of the project

Conference Session

Using Computers, Software, and Writing to Improve Mathematical Understanding

Collection

2012 ASEE Annual Conference & Exposition

Authors

Jorge A. Samayoa, Galileo University and Purdue University; Carlos Humberto Zelada, Galileo University

Tagged Divisions

Mathematics

Beaumont 9 and Reinhold 8 . Page 25.1430.2Tonkin 11 suggests that the use of wikis in education should fall into one of these four categories: 1. Single-user. This allows individual students to write and edit their own thoughts. 2. Lab book. This enables students to peer review notes kept online by adding, for example, comments or annotations to existing lecture notes or seminar discussions. 3. Collaborative writing. This can be used by a team for joint research such as a group project, essay or presentation. 4. Creating a topical knowledge repository for a module cohort. Through collaborative entries, students create

Conference Session

Engineering Technology Futuristic Planning

Collection

2012 ASEE Annual Conference & Exposition

Authors

Mert Bal, Miami University

Tagged Divisions

Engineering Technology

AC 2012-5038: VIRTUAL MANUFACTURING LABORATORY EXPERI-ENCES FOR DISTANCE LEARNING COURSES IN ENGINEERING TECH-NOLOGYDr. Mert Bal, Miami University Mert Bal received his Ph.D. degree in mechanical engineering from the Eastern Mediterranean University in Cyprus in 2008. He was a postdoctoral Fellow in the University of Western Ontario and a Visiting Researcher at the National Research Council Canada, London, Ontario, Canada in 2008-2010. He has worked on several research projects in the areas of virtual reality, intelligent integrated manufacturing, and wireless sensor networks. He has authored or co-authored various journal and conference publications related to the applications of virtual reality in manufacturing

Conference Session

Faculty Career Development

Collection

2012 ASEE Annual Conference & Exposition

Authors

Pamela S. Frinzi, Southern Polytechnic State University; Rebecca Hudson Rutherfoord, Southern Polytechnic State University

Tagged Divisions

Women in Engineering

o Associate Professor – 93.1% of men‟s salary o Assistant Professor – 92.7% of men‟s salary o Instructor – 96.0% of men‟s salary o Lecturer – 90% of men‟s salary o All women combined – 80.7% of men‟s salary Women continue to earn the majority of bachelor‟s degrees, and are projected to earn the majority of master‟s degrees – for the class of 2018-2019, women are projected to earn 62.0% of master‟s degrees, and 54.9% of doctorate degrees6.Looking at these statistics it is clear that women are still far behind men in achieving highereducation leadership positions.Women in STEM Fields at the Academy

Conference Session

Two-year Institutions Help Fill the STEM Pipeline

Collection

2012 ASEE Annual Conference & Exposition

Authors

Surendra K. Gupta, Rochester Institute of Technology; Daniel P. Johnson, Rochester Institute of Technology; John Morelli P.E., Rochester Institute of Technology; Mike Eastman, Rochester Institute of Technology; Vincent Joseph Amuso Sr., Rochester Institute of Technology

Tagged Divisions

Two Year College Division

professional, societal, and global issues15. Awareness Ability to understand own strengths and weaknesses, and receive feedback16. Leadership Ability or potential to lead others and/or projects, set and achieve goals, create change and inspire confidence17. Overall Overall performanceTable 4 lists the average scores for each of the seventeen evaluation items. Table 4: Average Scores from Employer Evaluation Reports Coop #1 Coop #2 Coop #3 Coop #4 # Item Label All ET2 All ET2 All ET2 All ET2 1. Quality 4.2 4.3 4.3 4.4 4.3 4.2 4.4 4.5 2. Quantity

Conference Session

Development of Manufacturing Engineering Laboratories I

Collection

2012 ASEE Annual Conference & Exposition

Authors

Arif Sirinterlikci, Robert Morris University

Tagged Divisions

Manufacturing

I/Obox simulator, and the other with the actual work-cell. Valuable demos also strengthened thelearning experience.In the near future, the author plans to incorporate the vibratory bowl feeders (under a secondwork-cell – where the students will actually wire the entire cell), and a state-of-the-art machinevision system (in place of an outdated one) into his laboratories. The work-cell will sort screwsdelivered by the feeder. Efforts for this new cell development have already begun. Additionalfuture projects may involve addition of DELMIA Robotics Virtual Simulation tool to this courseas well as the capstone project course (ENGR 4950 – Integrated Engineering Design) for seniors

Conference Session

Laboratory Experiences with Thermal and Chemical Systems and Sensors

Collection

2012 ASEE Annual Conference & Exposition

Authors

Jeffrey Corbet Johnson, Grand Valley State University; Nael Barakat, Grand Valley State University; Lihong (Heidi) Jiao, Grand Valley State University

Tagged Divisions

Division Experimentation & Lab-Oriented Studies

provideimportant means to both reduce impurities in the deposited layer and increase the layer Page 25.1067.3uniformity [5].Developed Approach and MethodologyThe objectives of the project included: 1. Investigation of a thermal evaporation process that would result in a >4000Å aluminum thin film layer and optimization of the procedure; 2. Exploration of the effects of the process parameters on deposition rate to arrive at an optimized set for incorporation in an undergraduate course; 3. Investigation of the best ways to extend the usable life of the source holders;Experimental Setup and EquipmentA Trovato 1830-A thermal evaporation

Conference Session

Outstanding Contributions to Student Learning through Laboratory Experiences

Collection

2012 ASEE Annual Conference & Exposition

Authors

Per Henrik Borgstrom, University of California, Los Angeles; William J. Kaiser, University of California, Los Angeles; Gregory Chung, University of California, Los Angeles; Zachary Nelson, National Instruments; Manda Paul, University of California, Los Angeles; Stoytcho Marinov Stoytchev; Jackson Tek Kon Ding, Marvell Technology Group, Ltd.

Tagged Divisions

Division Experimentation & Lab-Oriented Studies

administrators and students alike. Second, studentsmust perform experiments in a laboratory setting, which is highly stressful and not conducive tolearning.In response to these issues, the Electrical Engineering Department at UCLA recently performed asignificant overhaul of its electronic circuits laboratories. Traditional laboratory experimentsusing oscilloscopes and signal generators were replaced with take-home projects whereinstudents designed and implemented a series of audio signal conditioning circuits. Students wereprovided with prototyping boards, circuit components, and myDAQ portable data acquisitiondevices from National Instruments which served as oscilloscopes and signal generators. Thesecomponents enabled students to work at home while

Conference Session

Design Cognition III

Collection

2012 ASEE Annual Conference & Exposition

Authors

Richard J. Aleong, Queen's University; David S. Strong, Queen's University

Tagged Divisions

Design in Engineering Education

initiatives with all engineering departments. One of his key initiatives was the introduction of an elective ”Multidisciplinary Design Stream,” in which students participate in a series of courses and industry sponsored projects that build significant and relevant skills to foster creativity and innovation in their future careers. Strong has received multiple awards for teaching and student support, most recently as the recipient of the 2010 Alumni Award for Excellence in Teaching. Prior to his appointment at Queen’s, Strong spent over two decades in the private sector in engineering and management. His experience spans three different areas: the primary aluminum industry, biomedical and biotechnology instrumentation, and

Conference Session

Graduate Student Experience

Collection

2012 ASEE Annual Conference & Exposition

Authors

Kacie Caple D'Alessandro, Virginia Tech

Tagged Divisions

Graduate Studies, Student

for this course, all workshop leaders and instructorswere given a tutorial on using DyKnowTM in the classroom to interact with students virtually.Using DyKnowTM, I was able to receive instant feedback from students on their level ofunderstanding, poll students for answers to multiple choice questions, collect student work, anddisplay student work as a teaching aid during class. Although common notes were prepared forthe course, instructors were given the freedom to alter the course notes or integrate relevantexamples from their own work, as long as they maintain the integrity of the notes for thestudents. I decided to take advantage of this opportunity to integrate several of my own personalexamples from past projects and research.In spring

Conference Session

Accreditation and Outcomes-based Education

Collection

2012 ASEE Annual Conference & Exposition

Authors

Sandra A. Yost, University of Detroit Mercy; Laurie A. Britt-Smith, University of Detroit Mercy

Tagged Divisions

Liberal Education/Engineering & Society

other external accreditation bodies are often more mature than those inprograms that are not separately accredited, so a model of collaboration across disciplines hasbeen adopted as a way forward in developing assessment expertise among colleagues who deliverthe liberal education component of the undergraduate engineering curricula.The goals of this project were (a) to assess the existing capacity for core curriculum assessment,and (b) to design and implement an intervention aimed at increasing this capacity in academicdepartments not previously required by external bodies to engage in outcomes-based assessment.This remarkable effort is a largely faculty-driven process which enjoys the enthusiastic support ofuniversity administration. It also

Conference Session

Thinking About the Engineering Curriculum

Collection

2012 ASEE Annual Conference & Exposition

Authors

Judith A. Sunderman, University of Illinois, Urbana-Champaign; Raymond L. Price, University of Illinois, Urbana-Champaign

Tagged Divisions

Educational Research and Methods

in P-12 career and technical educa- tion for the Illinois State Board of Higher Education/Illinois State University; research and evaluation for the Illinois Assessment and Accountability Project (Illinois State Board of Higher Education/University of Illinois); and the Entrepreneurial Leadership in STEM Teaching and Learning (Project EnLiST - Na- tional Science Foundation/University of Illinois). Her research focus and area of expertise is personal development, sustainable transformative learning environments, and curricular change. She has worked with curriculum/programs in a variety of areas, including teaching centers, engineering, business, honors, national scholarship advising, animal sciences, human

Conference Session

ABET Accreditation, Assessment, and Program Improvement in ECE

Collection

2012 ASEE Annual Conference & Exposition

Authors

Diana G. de la Rosa-Pohl, University of Houston

Tagged Divisions

Electrical and Computer

AC 2012-3617: DIFFERENCES IN EDUCATIONAL GOALS WITHIN THEFIELD OF ELECTRICAL ENGINEERINGDiana G. de la Rosa-Pohl, University of Houston Diana de la Rosa-Pohl has been a lecturer in the Cullen College of Engineering at the University of Hous- ton since 2003. She has worked with the PROMES program to develop project-based learning courses for the first-year curriculum. Currently, she is developing and evaluating project-based multidisciplinary courses for the engineering honors program. Page 25.468.1 c American Society for Engineering Education, 2012 DIFFERENCES IN EDUCATIONAL

Conference Session

Contextual Competencies

Collection

2012 ASEE Annual Conference & Exposition

Authors

Nathan E. Canney, University of Colorado, Boulder; Angela R. Bielefeldt, University of Colorado, Boulder

Tagged Divisions

Educational Research and Methods

Page 25.70.1 c American Society for Engineering Education, 2012 A Model for the Development of Personal and Professional Social Responsibility for EngineersAbstractImportant attributes for engineering professionals include an understanding of the global andsocietal impacts of engineering projects and a well-developed professional and ethical code ofresponsibility; these attributes must be developed in engineering students. Furthermore, the roleof an engineer is becoming increasingly global, requiring an international perspective and cross-cultural skills. The core foundation for these skills can be found in a well-developed sense ofsocial responsibility, contextualized by the

Conference Session

K-12 Teachers: PD, Implementation, and Beyond

Collection

2012 ASEE Annual Conference & Exposition

Authors

Amber Leigh McFarland Kendall, Tufts University; Kristen Bethke Wendell Ph.D., University of Massachusetts, Boston

Tagged Divisions

K-12 & Pre-College Engineering

is often only a supplement to science or social studieslessons.33,34,40 The engineering-based science units in our research were intended toreplace existing science units, and they incorporated inquiry and science content withinthe framework of a grand engineering-design challenge. These challenges includedbuilding a sturdy and insulated model house (properties of materials), designing amusical instrument (sound), constructing a people mover for an airport (simplemachines), and creating a model of a rainforest animal (animal structure and behavior).MethodsResearch questions. This paper is the first from our research program to focusexclusively on the teachers involved in the project and their perceptions and experiencesin implementing