Friday, May 15, 2009

Teaching Limiting Reactants

The purpose of this video is to use it as an introduction to limiting reactant products so that students see that it is similar to things in their everyday life, and to see that life issues are sometimes harder than the chemistry behind figuring out these problems. There should be a worksheet to accompany the movie that has a list of the lanyard options, it holds students accountable for the information, and gives them an opportunity to start the thinking process for the day. Hope that you enjoy.

6 comments:

  1. This is a really good video! I like the visuals and the effects. The ideas obviously make more sense with the worksheet. I liked the idea of making chemistry more approachable and connected to everyday things. One suggestion is finding a way to connect it more with chemistry. The student council example was a little disconnected. However, the worksheet might be what you had in mind to connect the example and limiting reactants.

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  2. I thought the movie editing and visual effects on this video were really well presented. It was definitety well done! I felt like making limiting reactions relative to everyday examples made the chemistry ideas much simpler for non-science students to understand- genius idea. But I also felt as though the final example should have shown how chemical reactions can be limited by the amount of reactants available in a chemical equation. It would have been cool for you to show an experiment with not enough reactant and one with enough and how that changes the product or reaction. Obviously with more times and means this probably would have been something you would have done. (something simple like baking soda and vinegar might work for future ideas- I'm not sure how though... my chemistry isn't that great). Overall though I think it was a good topic and cleverly presented. I had never thought about everyday examples like that before.

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  3. This was a fun movie, that really helped to connect something we all understand to something more abstract. Both examples showed how limiting reactants work and helped me to understand the concept (I am not really a chemistry person). However, perhaps showing more directly how it relates to chemistry would, I think, be useful for the students. By using the concepts shown to directly relate them to what the students will be doing in your class would be helpful. Great job!

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  4. I like the ham sandwich analogy and accompanying graphics; produces understanding very quickly. Ditto what everyone else said. Yeah, just make sure it's extremely obvious what the equivalent to each story, in the chemical world is.

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  5. I really liked the analogies given and the simple approach to limiting reactants. Brilliant presentation. Good job!

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  6. You made a difficult concept a lot easier to understand. Good job. I liked that you had them try to solve a problem as well. It may be difficult to get all of the information needed to answer the problem though with so little time seeing the data. I'm sure you could work it out though.

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