Monday, July 2, 2012
Energy dissipation - Ah ha moment
Abby, I was looking at video from day 1 for a different reason, but came across this clip and had to post it for you. Table 2 was discussing where the kinetic energy of a wave goes when the wave hits the shore, or a wall. By the time of this clip, they've clearly identified what their question is, and then Lezlie helps guide them towards thinking about what forms of energy the KE could change into. But, before she does that, they have an amazing discussion of the possibilities, trying to disentangle what the energy is doing from the "physical evidence". There is so much here! Also, I love that Lezlie chooses the precise moment when the group has their "ah-ha" moment to walk away and let them hash it out. What a great teacher move!
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Awesome Lindsay! Thanks! Could you put the episode title up on this post as well as the name of the movie it came from so I can find it later?
ReplyDeleteI am so excited about this, "Does every single thing take a little bit of energy away until it just dies off?" LOVE IT!
DeleteGood reminder that I need to put these episodes back on the server. It's called: UE1 120626 T2_Energy Dissipation.mov
ReplyDeleteSomething I find interesting about this clip is that the students recognize all of the pieces they need to conclude that the energy ought to go somewhere (that energy is conserved and not lost; that erosion is just evidence of energy and is not itself energy.) But until later in the clip, they do not know where the energy goes.
ReplyDeleteThis seems like a valuable and difficult accomplishment -- the ability to develop a question (where does the energy go?) purely on theoretical grounds (energy is conserved and erosion is not energy.) Until they arrived at some answers later in the clip, I actually assumed they knew where the energy was going.
I liked how Lezlie used her wording carefully. She was about to ask, what...what..? Then asked them to think about using their senses. That made such a difference in them discovering the answer hence the ah ha moment. It takes practice to ask the guided questions to get pupils to retrieve and connect the information to the processing stage.
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