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Utilization of Recorded Student Narrated Solutions of Homework in Thermodynamics

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Conference

2024 South East Section Meeting

Location

Marietta, Georgia

Publication Date

March 10, 2024

Start Date

March 10, 2024

End Date

March 12, 2024

Page Count

7

DOI

10.18260/1-2--45580

Permanent URL

https://peer.asee.org/45580

Download Count

13

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Paper Authors

biography

Robert GIll Mercer University

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Robert (Robby) Gill is a Mechanical Engineer from Colorado who specializes in instrumentation and solar energy engineering. He arrived at Mercer in 2018. He is the lead instructor for Introduction to Engineering design. Additionally, he teaches Engineering Thermodynamics I & II, Experimental Methods, and Mechanical Engineering Lab I & II.

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Abstract

Oral evaluation of subject area competency allows an instructor insight into the problem solving process students are applying to their coursework. Student were assigned to record themselves giving a brief narrated solution to one homework problem per textbook chapter. These narrated solutions were implemented into a core undergraduate course. Average exam scres and standard deviations were tracked for student grades (out of 100%) for the three course exams to minimize the effect of varied exam questions; these statistics were averaged before and after implementing the narrated solutions. While average exam scores experienced small changes, the standard deviation of the means decreased by 0.78 on Exam 1, 0.70 on Exam 2, and 0.60 on Exam 3, when compared to semesters of similar length and structure. The tighter spread of student exam scores after implementing narrated solutions demonstrates a deeper class cohesion of understanding, which leads to more positive student outcomes.

GIll, R. (2024, March), Utilization of Recorded Student Narrated Solutions of Homework in Thermodynamics Paper presented at 2024 South East Section Meeting, Marietta, Georgia. 10.18260/1-2--45580

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