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The US does not spend anywhere near tour nations in professional development nor build in the same collaboration time. It does not have as much coaching and other "frippery" . There is plenty of great research on this and while you are right that many pay lip service to improving these areas of US education, little is ever done to meaningfully invest in said improvements.

Also the article did not bring these up as a panacea. These kinds of complicated, cultural, and meaningful improvements will not be made easily, in a short period of time, etc.

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