The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

Mark Kistler, aka Commander Mark, stars in a new documentary, The Secret Cities of Mark Kistler, that tells the story of Kistler's legacy and how it all happened. Commander Mark had big bright eyes ...

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I teach fourth grade. My question is about putting students in teams. I have been pretty successful at keeping them on the same team all year, as you describe in your book. I am just wondering what ...