1754 - Bringing Physics Lecture Demonstrations Closer to Home

Author / Creator

AAPT WM21 (2021)

Conferences

AAPT WM21 B1.6 Physics on the Road and Art of Demonstrations (Waxing or Waning?) (2021)

Available as

Online

Summary

Lecture demonstrations are frequently noted on teaching evaluations as being an engaging part of lecture.  However, the Force Concept Inventory (FCI) post-test indicates student retention of demons...

Lecture demonstrations are frequently noted on teaching evaluations as being an engaging part of lecture.  However, the Force Concept Inventory (FCI) post-test indicates student retention of demonstration concepts is poor.  Furthermore, lecture demonstrations require a significant amount of instructor preparation and time in lecture.  Because of these issues, and limited class time in Fall 2020 due to COVID, an introductory physics class moved a portion of lecture demonstrations to independent student activities completed outside of class.  It was hoped that students independently performing the demonstrations would increase retention of concepts. The instructor and TA's made a "Physics Box" of supplies for lecture demonstrations, paid for by lab fees.   Students report enjoying doing the demonstrations themselves and using the equipment in the Physics Box creatively while working quantitative problems. Nonetheless, they also reported uncertainty in their results and a desire to discuss them in class. 

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