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Is the Archimedes principle a law of nature? Discussions in an 'extended teacher room'

Dahl, Olof ; Eklund, Bo and Pendrill, Ann Marie LU (2020) In Physics Education 55(6).
Abstract

Is a suction cup at the bottom of a bathtub subject to an upward force from the surrounding water, even if there is no water under it? A student question, posted in a teacher facebook group on a Monday morning, led to a discussion involving 21 comments with 225 replies offered by 16 teachers during the next few days, including several simple experiments, as well as modeling, to evaluate different arguments. The discussions, summarized in this paper, provide an example of how social media can provide an 'extended teacher room' where teachers can explore and refine their understanding in a safe and mostly supportive environment, and also find ways to give more elaborate answers to challenging student questions.

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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Archimedes? principle, buoyancy, extended teacher room, Gauss? theorem, physics teaching, pressure, social media
in
Physics Education
volume
55
issue
6
article number
065025
publisher
IOP Publishing
external identifiers
  • scopus:85094842079
ISSN
0031-9120
DOI
10.1088/1361-6552/aba733
language
English
LU publication?
yes
id
5a3536aa-0a57-495d-93b1-ed3684a2be62
date added to LUP
2020-11-16 07:30:32
date last changed
2020-11-17 01:18:48
@article{5a3536aa-0a57-495d-93b1-ed3684a2be62,
  abstract     = {<p>Is a suction cup at the bottom of a bathtub subject to an upward force from the surrounding water, even if there is no water under it? A student question, posted in a teacher facebook group on a Monday morning, led to a discussion involving 21 comments with 225 replies offered by 16 teachers during the next few days, including several simple experiments, as well as modeling, to evaluate different arguments. The discussions, summarized in this paper, provide an example of how social media can provide an 'extended teacher room' where teachers can explore and refine their understanding in a safe and mostly supportive environment, and also find ways to give more elaborate answers to challenging student questions.</p>},
  author       = {Dahl, Olof and Eklund, Bo and Pendrill, Ann Marie},
  issn         = {0031-9120},
  language     = {eng},
  number       = {6},
  publisher    = {IOP Publishing},
  series       = {Physics Education},
  title        = {Is the Archimedes principle a law of nature? Discussions in an 'extended teacher room'},
  url          = {http://dx.doi.org/10.1088/1361-6552/aba733},
  doi          = {10.1088/1361-6552/aba733},
  volume       = {55},
  year         = {2020},
}