Montreal, Quebec, Canada
June 22, 2025
June 22, 2025
August 15, 2025
ME Division 14: From M&Ms to Air Quality: Engaging Students in Energy and the Environment
Mechanical Engineering Division (MECH)
13
https://peer.asee.org/56686
Shehla Arif is an associate professor of mechanical engineering at the University of Mount Union. Her current research and teaching focuses on reclaiming the goals of liberal education by emphasizing social and ecological dimensions of engineering work. She aims at supporting diversity and promoting sustainability by foregrounding the societal impacts of Engineering practice and thus preparing compassionate engineers who care about the well-being of fellow human beings, all life forms, and the planet. She is the lead editor of the International Journal of Engineering, Social Justice, and Peace. Her contributions range from creating novel Fluid Dynamics experiments to applying liberative pedagogies to teaching ThermalFluids Sciences. She obtained PhD in Mechanical Engineering from Northwestern University, IL, U.S.A followed by a post-doctoral research fellowship in Earth Sciences at McGill University, Canada. Her Masters in Mechanical Engineering is from Bucknell University, PA, U.S.A. She obtained B.E. from University of Engineering & Technology, Lahore, Pakistan.
Drawing on hands-on minds-on learning theory, this activity is designed to help students better understand and retain somewhat abstract concepts. Heat Transfer through the mechanisms of conduction, convection, and radiation are fundamental concepts but their micro-structural aspects are obscure to students as evidenced by class discussions after assigned readings on the subject. In this activity, senior mechanical engineering students are asked to create physical representations using multi-colored M&Ms (colorful round chocolate candies) of atomic and molecular-scale phenomena pertaining to conduction, convection, and radiation in solid, liquid, and gas phases of matter. Students are assigned the reading a few days in advance and asked to come to the laboratory session having thought about the physical representations. During the 100-minutes-long laboratory session, students work in teams. Each team is assigned either a solid, liquid, or gas phase. They are provided with M&Ms and cookie sheets. They discuss, plan, and enact their representations in the first half of the session. Then, the whole class walks to each station. The students at the station give a brief informal presentation on their representation and answer any questions. During this informal question & answer session, faculty organizes key features of the three modes of heat transfer on the board. Students actively contribute to the information jot on the board. Post-activity, they are provided one week to reflect on the process. In this paper, I shall present their reflections along with the activity prompts and student representations. Students have indicated superior learning outcomes due to (i) having to think about and enact physical representation; (ii) debrief information jot on the board after the activity during the question-and-answer session. This activity is often referred to while discussing various specific topics of Heat Transfer in subsequent lectures. Having performed this activity in the first week of classes, students present deeper modes of understanding and interest in the subject during the semester as evidenced by enhanced class participation and performance in the exams.
Arif, S. (2025, June), Heat Transfer and M&Ms: Hands-on Minds-on Learning Paper presented at 2025 ASEE Annual Conference & Exposition , Montreal, Quebec, Canada . https://peer.asee.org/56686
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