If we want to help our students retain information it is important to know how memory works.  Understanding cognitive load is, I think, essential.

Not all of the information in this video applies to teaching, but the ‘Google effect’ was interesting.  Actively searching for pacive information is not the same as actively engaging with the information.

Google effect 1

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https://www.youtube.com/watch?v=8OXEBf1Zp8k