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Widely Varying Grade Distributions in Courses Taught by Different Instructors

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Conference

2025 ASEE -GSW Annual Conference

Location

Arlington, TX, Texas

Publication Date

March 9, 2025

Start Date

March 9, 2025

End Date

March 11, 2025

Page Count

5

DOI

10.18260/1-2--55089

Permanent URL

https://peer.asee.org/55089

Download Count

10

Paper Authors

biography

Amir Karimi The University of Texas at San Antonio

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Amir Karimi, University of Texas, San Antonio Amir Karimi is a Professor of Mechanical Engineering at The University of Texas at San Antonio (UTSA). He received his Ph.D. degree in Mechanical Engineering from the University of Kentucky in 1982. His teaching and research interests are in thermal sciences. He has served as the Chair of Mechanical Engineering (1987 to 1992 and September 1998 to January of 2003), College of Engineering Associate Dean of Academic Affairs (Jan. 2003-April 2006), and the Associate Dean of Undergraduate Studies (April 2006-September 2013). Dr. Karimi is a Fellow of ASEE, a Fellow of ASME, senior member of AIAA, and holds membership in ASHRAE, and Sigma Xi. He has served as the ASEE Campus Representative at UTSA, ASEE-GSW Section Campus Representative, and served as the Chair of ASEE Zone III (2005-07). He chaired the ASEE-GSW section during the 1996-97 academic year.

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biography

Randall D. Manteufel P.E. The University of Texas at San Antonio Orcid 16x16 orcid.org/0000-0001-9829-2723

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Dr. Randall Manteufel is an Associate Professor of Mechanical Engineering at The University of Texas at San Antonio (UTSA). He has won several teaching awards, including the 2012 University of Texas System Regents Outstanding Teaching Award and the 2013 UTSA President’s Distinguished Achievement Award for Teaching Excellence, the 2010, 2014, 2018 and 2019 College of Engineering Student Council Professor of the Year Award, 2008, 2022, 2024 College Excellence in Teaching, and 2005 Mechanical Engineering Instructor of the year award, 1999 ASEE-GSW Outstanding New Faculty Award. His teaching and research interests are in the thermal sciences. In 2015-2016, he chaired the American Society for Engineering Education Gulf Southwest section and in 2018-2019 he chaired the Academy of Distinguished Teaching Scholars at UTSA. He is a registered Professional Engineer in Texas.

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Abstract

In our engineering program, grades of C- or better are passing grades, while D, F, and W (withdrawal) are non-passing. In recent years, it is noticed that the percentage of DFW grades for the same courses vary significantly, depending on the instructor. In six sections of a lower division engineering course taught by two different instructors in fall and spring semesters, the rate of DFW assigned varied from 21% to 73%. In a junior level mechanical engineering course, three different instructors taught three sections of the course in the fall and spring semesters. In this case, the DFW rates varied within a range of 45% to 71%. In a junior level mechanical engineering course that typically had DFW rates in a range of 25% to 40 %, a new instructor issued 42% A, 42% B, 14% C, and only 2% of students received grades of DFW. There exists a wide range of grade distributions in required engineering courses. In general, the average GPA for laboratory courses are higher than those for the lecture ones. During the fall and spring semester of 2023-24 academic year, excluding the laboratory courses, the average GPA in prerequisite course varied from 1.02 (1.15 standard deviation) in a thermodynamics course to 3.19 (0.77 standard deviation) in a fluid mechanics course. Easy grading in foundational engineering courses often leads to higher fail rates in subsequent engineering courses which build on prerequisite topics. It is challenging to teach solid mechanics or machine element design when students can’t construct a free body diagram or calculate the moment of a force. Similarly, it is challenging to teach heat transfer when student don’t have the necessary mathematical skills required for the course, or understand pressure, fluid flow, and control volume analysis. A study was initiated to compare the grade distributions in required engineering courses in the last three years. The final extended abstract will provide a more detailed description of grade distribution for the courses offered in the program and summary of recommendations to be submitted to the department chair for possible actions.

Karimi, A., & Manteufel, R. D. (2025, March), Widely Varying Grade Distributions in Courses Taught by Different Instructors Paper presented at 2025 ASEE -GSW Annual Conference, Arlington, TX, Texas. 10.18260/1-2--55089

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