One of the key phrases of Training Within Industry (TWI) and Lean is – “If the student hasn’t learned, the teacher hasn’t taught.” To this I say, “If the teacher hasn’t learned, the teacher hasn’t taught.” Or even – “if the teacher hasn’t learned, the student hasn’t taught.” I say this from two aspects, the first from the aspect of the teacher, and the second from the aspect of the student. To explain my statements, I will use ideas from Cybernetics.
The core of this post started with the thought that Teaching should be a non-zero sum activity. As the old saying goes, teaching is the best way to learn a subject. From the point of Cybernetics, teaching is circular. The idea of circularity is best explained by Heinz von Foerster, the Socrates of Cybernetics, and one of my heroes.
What is meant by circularity is that the…
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