Day 47: A Good Hook for Table Discussions

Friday, 23 October 2015

If you’re here for the pedagogy, you’ll want to know that I’m happy with two parts of this class:

  1. the hook was strong (though Googling 2012 olympics pool underwater turns up even better pictures)
  2. there were observations about the picture for kids to argue over

If you’re here for the physics, you’ll want to know that the photo is an excellent example of the critical angle for light refraction/reflection. I showed it in class before introducing refraction and asked what they saw in the video. Students were to discuss at their tables. I recorded audio for one group, which is presented here.

Screen Shot 2015-10-27 at 4.16.30 PM

I first saw the image on Mr. Reid’s blog though it was originally posted to @L2012PoolCam on Twitter.

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One thought on “Day 47: A Good Hook for Table Discussions

  1. Pingback: Day 50: Critical Angles | Physics180: A photo-a-day blog

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