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Phenomenon-based learning in chemistry education

From Audio: Learning sciences and science education with Dr Stephanie Ryan (#30)

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STEAM Powered
Duration: 02:34
STEAM Powered speaks with Dr Stephanie Ryan, Children's Book Author, Learning Scientist, and Science Educator on the benefits of phenomenon-based learning in chemistry.
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STEAM Powered speaks with Dr Stephanie Ryan, Children's Book Author, Learning Scientist, and Science Educator on the benefits of phenomenon-based learning in chemistry and how it can be used to demonstrate and establish concepts.
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Yeah, there are a few, like the example of boiling water that you need to see the molecular level of it to understand it. Because when you boil water and it disappears, you what are you going to use to back up what you're doing, you know? Um And so if with the molecular way of showing it we in in the chemistry curriculum there was a simulation with hydrogen peroxide getting heated and one with water being heated and the listening to the kids talk about those two things. Solidified chemical physical change for them. And I love that example is my favorite. I go back to it all the time. Okay, so tell me that example, like how does that work? Yeah, so hydrogen peroxide when it's heated, decomposes into oxygen gas and hydrogen gas. And so that is an example of yeah, chemical change and it is something new has happened. Um But with the water when you heat it up, those water molecules are all still there and they're still water molecules, it is just now a gas. Um and so that shows the kids, but when it disappeared, you can't see it, but it's still water. It has not changed into something else. And it was because they look so similar and that's another case of the students not they're learning about atoms and how H. 202 is different than H 20. And so like even getting at that, so it was just so many different levels to see that happening. And that one of my other favorite part, I just love that simulation. Um One of the other things I liked about it was that it's the probability of atoms hitting each other. So when I was going to chemistry, I thought that this plus this equals that. So they're going to hit each other in their hands, but that's not at all. It has to happen with enough energy and it has to happen at the right angle and like there's a lot of stuff to it. So it actually built that probability and and sometimes you would see the same molecule break into something else in a different simulation, you know, so it might go back and forth with equilibrium and like that. So the visual component, I think helped a lot of kids. Absolutely. Lab helps obviously for some, um, but for some it might just re establish some misconception they have if you're not also looking at molecular level. So that was just so cool to watch.
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