Fellow teachers and learners, you're probably familiar with Stigler and Hiebert's book The Teaching Gap.  I read it several years ago, re-read it more recently, and ... I agree with the author of this post.  There's much groundwork to be done in most schools before lesson study is even  possible, let alone productive.

Thoughts?

http://christopherdanielson.wordpress.com/2012/07/12/the-teaching-gap/
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