A Controlled Study Showing the Impact of the Foundation Coalition on Chemical Engineering Education at Texas A&M University Mark Holtzapple, Katherine Toback Department of Chemical Engineering Texas A&M University m-holtzapple@tamu.edu, katherinetoback@tees.tamus.edu Carol Holtzapple The Flippen Group College Station, TX carol.holtzapple@flippengroup.com Abstract In 1993, the Foundation Coalition (FC) was formed to provide an innovative curriculum for freshman and sophomore engineering students in nine universities, including Texas A&M. FC themes include an integrated curriculum, active/cooperative learning, technology-enabled learning, and continuous improvement. For many years, FC was generously supported by the National Science Foundation (NSF) and produced numerous papers showing significant benefits, such as greater retention, improved academic performance, and more rapid graduation. Once NSF funding ended, Texas A&M institutional commitment to FC waned and the freshman engineering program fragmented into three tracks. Only Track C (chemical and petroleum engineering) continued the educational traditions established by FC. Because of transfers and changes of majors, not all students who enter the sophomore chemical engineering programs had Track C as freshman. This provides a unique opportunity to run “controlled studies” to determine the impact of FC principles on chemical engineering education. The data demonstrate that students who participated in Track C exhibited significantly better performance. For example, grades in the first chemical engineering course (mass and energy balances) increased by 0.45 grade points and the “recycle rate” for this course decreased by a factor of 2.6. Background From 1993 to 2004, the National Science Foundation (NSF) funded the Foundation Coalition (FC) to reform and improve the education of freshmen engineers. The FC included the following universities: Arizona State University Rose-Hulman Institute of Technology Texas A&M University University of Alabama University of Massachusetts Dartmouth University of Wisconsin Madison Texas A&M University Kingsville Texas Woman's University Maricopa Community College District Proceedings of the 2015 ASEE Gulf-Southwest Annual Conference Organized by The University of Texas at San Antonio Copyright © 2015, American Society for Engineering Education FC themes include the following: Integrated curriculum – The FC curriculum is designed to integrate with the freshman and upperclassman years. Within the freshman year, the curriculum reinforces physics, chemistry, and mathematics. For example, Newton’s laws are discussed in physics, but calculations are done strictly within the SI system. In contrast, in the FC course, Newton’s laws are also discussed, but calculations are performed in both the SI and AES systems. This approach provides a solid foundation for explaining various unit systems in which mass or force is a derived unit. Further, students are confronted with understanding the difference between g and gc, a major source of confusion. To integrate with their future courses, the FC course provides a framework for major engineering topics (e.g., thermodynamics, fluids, heat transfer, and electricity). The benefits of an integrated curriculum include the following: (1) reinforces student learning, (2) broadens understanding, (3) provides a learning framework, (4) matches engineering practice, (5) links disciplines, (6) improves visualization, (7) increases retention, (8) smooths transitions between subjects, (9) establishes relevance to engineering career, (10) decreases compartmentalization, (11) connects with learning preferences, (12) avoids haphazard presentation, (13) develops teaming, and (14) improves faculty1. Active/cooperative learning – Students are organized into teams of three to four. Lectures are interspersed with frequent group activities such as calculating the answer to a problem, discussing various options to arrive at a consensus answer, brainstorming, and working on projects. Technology-enabled learning – In the classroom, students have their own computer equipped with standard Office software (e.g., Word, Excel) as well as specialized engineering software (e.g., AutoCAD, Inventor). The computers are connected to the Internet so students can access the Web. Continuous improvement – The FC course is constantly evaluated to update the content and to improve content delivery. In addition to the above themes, the FC at Texas A&M included the following: (1) clustering of students into “learning communities” who took common courses (math, engineering, science); (2) using student teams both inside and outside the classroom; (3) industry involvement in the classroom; (4) undergraduate peer teachers; and (5) faculty team teaching1. The benefits of FC are summarized below: Retention – The second-year retention of students who were clustered into learning communities increased by the following percentage points: 12% (overall), 12–19% (men), 12% (women), 22–46% (minority)2,3. Improved academic performance – Compared to traditional teaching methods, FC students had the following percentage point improvements in standardized tests: 16% (critical thinking), 15% (Force Concepts Inventory), 10% (Mechanics Baseline Test), 10% (Calculus Concepts)4–7. Compared to traditional teaching methods, FC students reduced course failures (D, F, drop) by the following percentage points: 4% (engineering), 22% (math), 25% (physics)4–7. In a physics class that contained both traditional and FC students, the FC students performed better on a physics exam by 2–31 percentage points8. Rapid course completion – When clustered into learning communities, the students who completed their freshman core courses (math, science, engineering) in the recommended two semesters increased by the following percentage points: 5–14% (men), 11–19% (women)2. Proceedings of the 2015 ASEE Gulf-Southwest Annual Conference Organized by The University of Texas at San Antonio Copyright © 2015, American Society for Engineering Education Implementation of FC at Texas A&M While the FC curriculum was being developed at Texas A&M, the textbook Foundations of Engineering9 was written to support the objectives of the course. In the spirit of continuous improvement, a second edition was published in 2003. The text includes a mathematics supplement that reviews high school mathematics (e.g., algebra, geometry, logarithms) as well as a brief overview of calculus. Each chapter of the text references the relevant sections of the mathematics supplement so students can review them if necessary. The FC course was taught as a sequence of two 2-credit courses during two semesters. The course was entitled Foundations of Engineering (ENGR 111 and 112). The course combines lecture and laboratory activities into two 110-minute sessions per week. Each semester contains 14 weeks, so there were a total of 51 contact hours for the two-semester course. The course was divided into two segments: (1) Problem Solving (PS) and (2) Graphics (GR). Typically, in a given week, students received instruction in each segment. The PS segment was weighted towards lecture whereas the GR segment was weighted towards laboratory. This combined approach is preferred because it slowed the rate at which PS topics were introduced, which gives students “soak time” to assimilate the material. Also, it provides opportunities to integrate PS and GR into projects. Regardless of discipline, all engineering students – typically about 2000 students/yr – took the same FC course. Standard sections were taught in classes of about 100 students whereas honors sections had about 40 students. The PS faculty were drawn from the departments, each contributing one to two faculty per semester, most of whom were tenure-track faculty. The GR faculty came from the Graphics Department, most of whom were lecturers. I. ENGR 111 Table 1 summarizes the topics in ENGR 111. Approximately 35% is devoted to GR and the remainder to PS. In addition to the topics described in the table, to help them select an engineering discipline, students are expected to attend two 1-h departmental presentations in the evening. The course also includes an in-class case study presented by industry representatives. The course concludes with a capstone project, an air-powered car that consists of a pressurized PVC tank on wheels that is propelled forward when high-velocity air ejects from the rear. Each team builds one car and competes to go the longest distance. The project reinforces nearly every topic discussed in the course: teaming, Newton’s laws, graphics, graphical analysis, thermodynamics, units, Excel, statistics, calculus, safety, and numerical integration. II. ENGR 112 Table 2 summarizes the topics in ENGR 112. Approximately 25% is devoted to GR and the remainder to PS. In addition to the topics described in the table, to help them become familiar with industry, students are expected to attend two 1-h industry presentations in the evening. The course also includes an in-class case study presented by industry representatives. The first topic in the course is programming in Visual Basic, which was selected because it has low “overhead.” In only two 2-h lectures, the key elements of the language can be taught, which provides sufficient tools for students to solve a broad range of problems. Visual Basic is implemented within Excel, which capitalizes on the skills learned in ENGR 111. During the semester, students are assigned about 10 computer problems, many of which are coupled to engineering science topics. This strategy reinforces student awareness that computer programming is a useful tool for solving real-world engineering problems. Proceedings of the 2015 ASEE Gulf-Southwest Annual Conference Organized by The University of Texas at San Antonio Copyright © 2015, American Society for Engineering Education Table 1. Content of ENGR 111 Topic Introduction Course overview Engr. profession Teaming Time management Ethics Problem solving Engineering Science Newton’s laws Units Thermodynamics Mathematics Numbers Graphical analysis Statistics Computer tools Excel Graphics Projects Industry case study Team project Hours Example content 1.5 0.5 1 1 2 2 Grading, homework format, contact information, course philosophy Technology team, engr. disciplines, engr. functions, ABET Team roles, Code of Cooperation Goal setting, scheduling, health, study environment, learning Professionalism, registered engineer, canons, ethical theory Techniques, decomposition, process, constraints, algorithms, flow charts 2 3 4 Newton’s laws, equations of linear motion Unit systems, coherent units, dimensional analysis, unit conversion Pressure, temperature, energy, heat, work, enthalpy, ideal gas, First law, Second law, heat capacity, phase diagrams, reversibility 0.5 2 2 Significant digits, proportionality, error, precision, accuracy Rectilinear, semi-log, log-log, interpolation, linear regression, tables Mean, median, mode, standard deviation, histograms, normal distributions, Z-tables 5 18 Spreadsheets, graphing, solver, statistical functions, graphing, numerical integration Sketching, lettering, orthographics, pictorials, AutoCAD, dimensions, threads, scaling, sections 2 4 Air-powered car Table 2. Content of ENGR 112 Topic Introduction Course overview Computer tools Visual Basic Hours Example content 2 Grading, homework format, contact information, course philosophy 4 Rate processes 4 Functions, subroutines, naming variables, precedence of arithmetic operators, integers, reals, selection structures, repetition structures, arrays, Boolean operations Rate, flux, driving force, heat, electricity, fluid flow, diffusion, resistance, series/parallel resistors Engr. accounting Basic concepts 2 12 Defining a system, open/closed, systems, intensive/extensive quantities, state/path quantities, Universal Accounting Equation, conservation, steady state Batch/continuous processes, independent equations, matrices Positive/negative charge, Kirchhoff’s Current Law, batteries, simple circuits, equivalent resistance Forces, changing momentum by changing mass, revisit Newton’s laws Equations of angular motion, centripetal/centrifugal forces, moment of inertia, torque, particles/bodies State/path energy, heat/work, shaft work, electrical work, light, lasers, blackbody radiation, kinetic/ potential/internal energy, sensible/ latent heat, closed/open systems, sequential energy conversion Natural/unnatural processes, reversible/irreversible processes, cycles, Second law Interest, compounding, present worth, discount, inflation/ deflation, annuities, installment loans Parametric modeling, secondary features, drawings, assemblies, special views 2 4 Water rocket Mass Charge 2 2 Linear momentum Angular momentum 2 2 Energy 4 Entropy Money 2 2 Graphics Projects Industry case study Team project Proceedings of the 2015 ASEE Gulf-Southwest Annual Conference Organized by The University of Texas at San Antonio Copyright © 2015, American Society for Engineering Education The course concludes with a capstone project, a water rocket that consists of a 2-L soda bottle partially filled with water and 100-psig air. To transform the bottle into a rocket, the students design fins and a nozzle made by a 3-D printer. The rocket payload contains an altimeter that records launch height. The students write computer code to model the rocket trajectory as a function of water fill fraction and nozzle diameter. The computer predictions are compared to experimental data. The project reinforces many of the topics discussed in the course: teaming, Newton’s laws, graphics, graphical analysis, thermodynamics, units, fluid flow, Excel, safety, Visual Basic programming, and accounting for mass, linear momentum, and energy. Engineering Accounting Engineering accounting is the most important concept taught in the FC course. It is a unifying framework that applies to all engineering disciplines; in fact, engineering disciplines can be distinguished by what they count (Table 3). If all engineers are taught this framework, it is much easier for them to work on interdisciplinary projects because they have a common language. Engineering accounting provides a common framework, which is essential for student understanding. If a necessary framework is not present, then students will have enormous difficulty assimilating new information that a professor is presenting. If a professor can link current material to other concepts which a student is currently working on, then the probability that students can assimilate the material is increased, since the number of joints in a student’s conceptual framework to which the new material may be linked are increased1. Engineering accounting can only be applied to extensive quantities (e.g., mass, volume, charge, momentum), which depend upon scale. Engineering accounting cannot be applied to intensive quantities (e.g., temperature, pressure, concentration, voltage), which do not depend upon scale. Figure 1 shows a schematic representation of the engineering accounting process, which occurs in the following steps: (1) define a system, the subset of the universe that is being studied and is distinct from the surroundings; (2) define the extensive quantity that will be counted; and (3) define the time interval over which the accounting will occur. During the time interval, various path-dependent processes occur (input, output, generation, consumption) that have the potential to change the state of the system. Should the state of the system remain constant and unchanged, it is said to be at steady state. If the particular quantity being counted can be neither generated nor consumed, the quantity is conserved. It is common for students to confuse steady state and conserved. The process described in Figure 1 is described by the Universal Accounting Equation (UAE) Final – Initial = In – Out + Gen – Cons (1) Accumulation = Net in – Net gen (2) The terms on the left are state quantities whereas the terms on the right are path quantities. Both input and generation are positive terms, so designating a particular path quantity as input or generation may seem arbitrary; however, that is not the case. Input terms result from the transfer of the extensive quantity across the system boundary from the surroundings. As a result of this input process, the total amount of that quantity in the universe did not change; it was simply transferred from the surroundings to the system. In contrast, generation occurs within the system boundary and as a result of this process, there is more of this extensive quantity in the universe. Proceedings of the 2015 ASEE Gulf-Southwest Annual Conference Organized by The University of Texas at San Antonio Copyright © 2015, American Society for Engineering Education Initial amount Initial state Time passes Input Generation Consumption Output Intermediate state Time passes Final amount Final state Figure 1. Engineering accounting. framework. × × × × × × × × × × × × × × × Money × × Entropy Angular momentum Energy Linear momentum Charge Engineering Discipline Electrical Computer Civil Industrial Mechanical Chemical Aerospace Agricultural Nuclear Biomedical Mass Table 3. Accounting Specialties for Engineering Disciplines × × × × × × × × × × × × × × × × × × × × × × × × × × × × × × × × × × × × × × × × × Similarly, output terms result from the transfer of the extensive quantity across the system boundary to the surroundings. As a result of this output process, the total amount of that quantity in the universe did not change; it was simply transferred from the system to the surroundings. In contrast, consumption occurs within the system boundary and as a result of this process, there is less of this extensive quantity in the universe. The accounting framework described above can be applied to a wide variety of engineering activities, including designing chemical plants, manufacturing automobiles, describing electronic circuits, characterizing the acceleration of a rocket, analyzing fluid flow, etc. The power of this framework resides in the following: Proceedings of the 2015 ASEE Gulf-Southwest Annual Conference Organized by The University of Texas at San Antonio Copyright © 2015, American Society for Engineering Education Universality – Because the UAE is universal, it provides a common framework and language that allows engineers to communicate across disciplines. Clarity of thought – Engineering accounting is a rigorous method for modeling systems. By following the step-by-step methodology, the modeler is more likely to develop a model that reflects reality. Unifying concept – Engineering is taught as a series of courses that “stovepipe” knowledge, making it difficult to learn. In contrast, the engineering accounting framework crosses disciplines, making it easier for students to understand difficult concepts. This last point deserves further elaboration. Table 4 compares traditional methods of teaching engineering science to engineering accounting. Engineering accounting helps demystify thermodynamics. The first law of thermodynamics is simply accounting for energy with the constraint that energy is conserved. The second law of thermodynamics is simply accounting for entropy with the constraint that entropy can be generated, but never consumed. Without grasping engineering accounting, it is simply impossible to understand the depth of these thermodynamic laws. Rather than teaching Newton’s laws as three separate statements, they reduce to the following simple statement: “Linear momentum is conserved.” Engineering accounting provides further helpful insights. For example, force is viewed as a flow rate of momentum between bodies, F p (3) which is readily apparent from the following dimensional analysis: m kg· kg·m s momentum Force N 2 s s s The study of the dynamics of a rigid body is nothing more than accounting for momentum: Momentum accumulation = Momentum flow in – Momentum flow out dp p in p out dt (4) Table 4. Comparison of Traditional Teaching Methods to Engineering Accounting Traditional Newton’s laws of motion Kirchhoff’s Current Law Kirchhoff’s Voltage Law First law of thermodynamics Second law of thermodynamics Engineering Accounting Accounting for linear momentum Accounting for charge Accounting for energy Accounting for energy Accounting for entropy Proceedings of the 2015 ASEE Gulf-Southwest Annual Conference Organized by The University of Texas at San Antonio Copyright © 2015, American Society for Engineering Education There are only three possible cases: dp 0 accelerati on dt dp Case 2 : p in p out 0 decelerati on dt dp Case 3 : p in p out 0 constant velocity dt Case 1 : p in p out Case 3 represents the steady-state scenario in which the system neither accumulates nor depletes momentum. Statics is a special situation for Case 3 in which the constant velocity is zero. Although engineering accounting is seemingly straightforward and simple, mastery of the concept takes repetition and practice. The following two questions were included in an exam: 1. An engineer has defined a system to account for Quantity X. After a period of time passes, if the final amount of Quantity X is unchanging and equals the initial amount of Quantity X, then the engineer can say that Quantity X is at steady state. a. True b. False 2. A parachutist jumps out of an airplane and reaches terminal velocity, meaning the drag force equals the gravity force. Once terminal velocity is achieved, as time passes, the parachutist’s velocity and momentum are constant. Based on this observation, we can conclude that momentum is conserved. a. True b. False Question 1 is readily answered by memorizing the definition of steady state; 93.5% of the students answered the question correctly. Question 2 requires the student to apply this definition to a specific situation. Although momentum is a conserved quantity, all that can be concluded from the observation describe in Question 2 is that momentum is at steady state; only 20.8% of the students answered this question correctly. Multiple Tracks In 2004, NSF funding for FC ended. Shortly thereafter, the leadership in the engineering college changed and it was decided to offer freshman engineering in three tracks: Track A – mechanical, civil, nuclear, industrial, aerospace, biomedical, agricultural Track B – electrical, computer Track C – chemical, petroleum Track A emphasized projects whereas Track B emphasized electrical circuits and computer programming; only Track C continued the FC tradition. A significant fraction of freshman engineering students change their majors. The college decided that, should a student change majors, it did not matter which track they took; any track of ENGR 111/112 would be accepted by the new major. This policy produced an environment in which a controlled experiment could be performed within the Department of Chemical Engineering. Although the majority of chemical engineering students enter the sophomore year having taken Track C, a significant portion took Tracks A or B. By comparing the performance of the two groups (Track C = no, Track C = yes), it is possible to determine if the FC approach is an effective strategy to prepare chemical engineering students for success. Proceedings of the 2015 ASEE Gulf-Southwest Annual Conference Organized by The University of Texas at San Antonio Copyright © 2015, American Society for Engineering Education Experimental Results Academic records in chemical engineering were evaluated for a total of 450 students who entered Texas A&M from 2004–2007. These students were divided into two groups (Table 5). For each group, the average cumulative GPA in the freshman year was very similar, so the two groups had nearly identical academic abilities. (Note: Their average cumulative GPA includes all courses taken during their freshman year, which is predominantly technical courses, such as chemistry, physics, mathematics, and freshman engineering.) To determine their level of preparation for chemical engineering, their performance was evaluated in CHEN 204 Elementary Chemical Engineering, which is commonly called “mass and energy balances.” The Texas A&M course is similar to many such courses taught across the country and is defined largely by the book Elementary Principles of Chemical Processes by Felder and Rousseau10. Typically, CHEN 204 is taken in the first semester of the sophomore year. By this time, students have completed their freshman science classes (freshman chemistry, freshman physics), freshman mathematics (calculus), and one version of ENGR 111/112 (Track A, B, or C). Whether a student took their freshman courses at Texas A&M or another university, to take CHEN 204, they must have completed this fundamental preparation. Table 5 shows that the percentage of students who repeated CHEN 204 because they earned a D or F is 17.1% (Track C = No) compared to 6.52% (Track C = Yes), a 2.6-fold reduction. Stated another way, without Track C, 1 in 6 students must repeat the course. With Track C, only 1 in 15 students must repeat the course. Figures 2 and 3 show the grade distributions in CHEN 204 for the two groups. Only the firstattempt grades are shown; if the student re-took the class, the grades on the second attempt are not shown. Visually, it is easy to see that the students who took Track C performed significantly better. Table 5 shows that the average GPA for CHEN 204 was 2.33 (Track C = No) compared to 2.78 (Track C = Yes), a difference of 0.45 or half a letter grade. To analyze the data in an unbiased manner, statistical analysis was performed using JMP9, a statistical package developed by SAS (Statistical Analysis Software). Figure 4 shows a statistical regression of the data. For all overall GPAs, taking Track C improves performance in CHEN 204 by about half a letter grade. Statistical significance P < 0.0001, i.e., the probability that these differences result from randomness, rather than from taking Track C, is less than one chance in 10,000. It should be noted that this study shows the benefits of Track C in toto. It was not possible to show the degree to which particular components of the course benefited student performance. For example, the authors strongly believe that the engineering accounting framework is a critical component of the course that leads to future success; however, an additional controlled study would be required to determine if this assertion is supported by data. Table 5. Two Groups of Students Taking CHEN 204 Elementary Chemical Engineering Track C n Average GPA (cumulative) Percentage of repeats (D and F) Average GPA (CHEN 204) No 82 3.24 17.1 2.33 Yes 368 3.29 6.52 2.78 Proceedings of the 2015 ASEE Gulf-Southwest Annual Conference Organized by The University of Texas at San Antonio Copyright © 2015, American Society for Engineering Education Figure 2. First-attempt grade distribution in CHEN 204 for Track C = No. Figure 3. First-attempt grade distribution in CHEN 204 for Track C = Yes. Proceedings of the 2015 ASEE Gulf-Southwest Annual Conference Organized by The University of Texas at San Antonio Copyright © 2015, American Society for Engineering Education Figure 4. Correlation of first-attempt grade in CHEN 204 with overall GPA. (Track C = No indicated by blue squares and blue line. Track C = Yes indicated by red open circles and red line.) Conclusion The FC tradition that was maintained in Track C significantly improved student performance in CHEN 204 by reducing the recycle rate by a factor of 2.6 and by increasing the grade in CHEN 204 by almost half a letter grade. This is accomplished by providing a solid foundation in the fundamentals, particularly engineering accounting. The engineering accounting framework is used in almost all core chemical engineering courses including mass and energy balances, thermodynamics, fluids, heat transfer, mass transfer, electrical circuits, statics and dynamics, reaction kinetics, and control. Many of these classes are taught in other engineering disciplines, so it is logical to conclude that this foundation would be beneficial to students in other disciplines as well. Providing a broad introduction in the freshman year follows sound pedagogical methods. When preparing for a presentation, the recommended approach follows: Tell ‘em what you are gonna tell ‘em Tell ‘em Tell ‘em what you told ‘em The engineering curriculum is no different. In the freshman year, we should Tell ‘em what you are gonna tell ‘em. Proceedings of the 2015 ASEE Gulf-Southwest Annual Conference Organized by The University of Texas at San Antonio Copyright © 2015, American Society for Engineering Education References Al-Holou N, Bilgutay N, Corleto C, Demel JT, Felder R, Frair K, Froyd JE, Hoit M, Morgan J, Wells D, “First-Year Integrated Curricula Across Engineering Education Coalitions” http://www.foundationcoalition.org/publications/journalpapers/AuthorHTML/F.htm 2. Morgan J, Froyd J, Rinehart J, Kenimer A, Malave C, Caso R, Clark C, “Can Systemic Change Really Help Engineering Students from Under-Represented Groups?”, International Conference on Engineering Education, Manchester, U.K., August 18–21, 2002. 3. Caso R, Clark C, Froyd J, Inam A, Kenimer A, Morgan J, Rinehart J, “A Systemic Change Model in Engineering Education and Its Relevance for Women”, Proceedings of the 2002 American Society for Engineering Education Annual Conference & Exposition. 4. Whiteacre M, Malave, C, “An Integrated Freshman Engineering Curriculum for Pre-calculus Students”, http://www.foundationcoalition.org/publications/journalpapers/ AuthorHTML/W.htm 5. Morgan J, Bolton R, “An Integrated First-year Engineering Curricula”,http://www.foundationcoalition.org/publications/journalpapers/AuthorHTML/M.htm 6. Morgan J, “A Freshman Engineering Experience: The Foundation Coalition at Texas A&M University”, http://www.foundationcoalition.org/publications/journalpapers/AuthorHTML/M.htm 7. Willson V, Monogue T, Malave C, “First Year Comparative Evaluation of the Texas A&M Freshman Integrated Engineering Program”,http://www.foundationcoalition.org/publications/journalpapers/AuthorHTML/M.htm 8. Barrow D, Bassichis B, DeBlassie D, Everett L, Imbrie PK, Whiteacre M, “An Integrated Freshman Engineering Curriculum, Why You Need It and How To Design It” http://www.foundationcoalition.org/publications/journalpapers/AuthorHTML/W.htm 9. Holtzapple MT, Reece WD, Foundations of Engineering, 2nd Ed., McGraw-Hill, New York, NY 2003. 10. Felder RM, Rousseau RW, Elementary Principles of Chemical Processes, 3rd Ed., Wiley, Hoboken, NJ, 2004. 1. MARK HOLTZAPPLE Dr. Holtzapple is a professor of chemical engineering at Texas A&M University. His research interests include production of chemicals and fuels from biomass, food and feed processing, high-efficiency engines, high-efficiency air conditioning, conversion of waste heat to electricity, high-power electric motors, and vertical-lift aircraft. KATHERINE TOBACK Ms. Toback is the chemical engineering academic advisor at Texas A&M University. CAROL HOLTZAPPLE Dr. Holtzapple is the research director at The Flippen Group where she conducts studies to determine the impact of teaching methods and the classroom environment on education. Proceedings of the 2015 ASEE Gulf-Southwest Annual Conference Organized by The University of Texas at San Antonio Copyright © 2015, American Society for Engineering Education