Editted footage from: http://www.youtube.com/watch?v=sKJegbjS4N8
Would like to film it myself with better quality (and a measuring stick) in the future.
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This post is part of a series where I go in to detail on some of the main aspects of Direct Instruction as laid out by Siegfried Engelmann i...
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There is a test that screens for some rare disease (only 1 in every million people is infected). It is 99% accurate (it gives the correct a... -
This post is part of a series where I go in to detail on some of the main aspects of Direct Instruction as laid out by Siegfried Engelmann i...
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