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:
- the hook was strong (though Googling 2012 olympics pool underwater turns up even better pictures)
- 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.