Salt Lake City, Utah
June 23, 2018
June 23, 2018
July 27, 2018
There is an increasing push to add more digital resources (such as video lectures) to undergraduate engineering courses, enabling strategies such as the flipped classroom or formats such as online education. Yet in this rapid push, it is important that educators remain circumspect about new methods until they have been proven effective. While online videos have been proven very useful in various lecture scenarios, the purpose of this study was to determine whether a video “review session” may be effective preparation for midterm exams. At a University of Applied Sciences in the Netherlands (a “hogeschool”), Fluid Mechanics is a part of the first-year curriculum for both Chemistry and Chemical Engineering students. In 2015, an online video was generated based on prior-used material for midterm review sessions, and shared with two of the four sections (one of the two sections taught by each of the two lecturers). The hour-long exam comprised four multiple-choice questions on theoretical concepts and two multi-part practical problems in which students solved for quantities like volumetric flow rate and pressure drop. Also printed on the exam paper after the problems was a brief, six-question survey asking about the students’ manner of preparation (attendance, book usage, and use of LMS materials), whether they watched the video, and what sort of math and physics they’d had in their high school courses and exit exams. Only one student, of the eighty-one tested, did not answer the survey questions. Interestingly, the students who obtained the video from the instructor scored lower on the Dutch 10-point grading scale—a 5.8 average for the former group compared to 6.2 for the latter; while the two students who answered that they’d obtained the video from a fellow student rather than from the instructor averaged a 5.1. The survey results showed that a majority of students who reported watching the video also reported not using the online materials (consisting of practice exams with solutions): 18 did not use the LMS materials, out of a total of 32 who watched the video. For the control group (those who did not watch the video), this proportion was fifty/fifty (24 out of 48). While these results may not be statistically significant, it suggests that many students who watched the video used it as a replacement for other study methods rather than as a supplement to them. While the use of this video may have worked to these students’ detriment, it should be noted that much stronger indicators of student success on the exam included class attendance, whether they purchased or obtained the book, and whether or not advanced math geared toward the physical sciences (“Wiskunde B”) was a part of their high school exit exams. This research will be repeated for a midterm exam at a University in the United States where Fluid Mechanics is a part of the second-year curriculum, and the results will be compared to those presented here.
Barankin, M. D. M., & Stratman, K. (2018, June), Board 40: Effect of Online Recorded Video “Review Session” on Student Test Preparation and Performance for Fluid Mechanics Midterm at a University in the Netherlands Paper presented at 2018 ASEE Annual Conference & Exposition , Salt Lake City, Utah. https://peer.asee.org/30027
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