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Often times, knowledge transfer involves more than just the final product, say, a finished painting.  In this example, the process, or the painting technique, would be the focal point.  In chemistry, this is often the case, especially for topics such as electron flows.  A fully drawn out reaction mechanism may only tell part of the story; to appreciate and understand the reaction, the order of electron flow is just as important as everything else.

In the age of internet and electronic learning media it may be easy to prepare an inanimate pdf or powerpoint slide, but this would not be conducive for some topics.  I have learned that students or presentation audiences learn better when the powerpoint slides are animated to sequentially show what’s being taught, step by step.  There are two main advantages: the learner is allowed to focus and digest on what’s on the screen one thing at a time instead of being overloaded with a full slide, and the process can be better understood.

I have always preferred chalk talk over powerpoint presentations for this reason – to follow the logic of the lecturer as material is being presented.  While I think animated powerpoint slides are not as organic, they are a good compromise for efficiency and effectiveness.

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