John R. Troutman McCrann
About
John R. Troutman McCrann (john@harvestcollegiate.org) teaches algebra, geometry, and physics at Harvest Collegiate School in New York City. He is chair of the math department and a union chapter leader. Follow him on Twitter @JohnTroutMcCrann.
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Blogs by John R. Troutman McCrann
Articles by John R. Troutman McCrann
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