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Posts by John Holdren

John Holdren is senior vice president of content and curriculum of K12. Previously, he was vice president and director of research and publications for the Core Knowledge Foundation, where he (along with E. D. Hirsch, Jr.) co-edited What Your First Grader Needs to Know and companion volumes in the Core Knowledge Series of resource books. He taught literature and writing at the University of Virginia and Harvard University, as well as high school English in Charlottesville, Virginia. Mr. Holdren holds a bachelor of arts degree from Johns Hopkins University and a master of arts degree in English and American Literature from the University of Virginia.