Stephen Marche (9 February 2015)
Newspaper Article 1
Richard L. Allington, Rachael E. Gabriel in Educational Leadership (March 2012)
Magazine Article 1
Kellie Hernandez, Allison Hintz, Kersti Tyson in Educational Leadership (November 2014)
Magazine Article 1
Paul Graham (December 2014)
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Charles Chu (Aug 27, 2017)
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Milwaukee Public Schools (unknown)
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Robert Cottrell in Financial Times (February 15, 2013)
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Gregory S. Berns, Kristina Blaine, Michael J. Prietula, Brandon E. Pye in Brain Connectivity (December 9, 2013)
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Joseph Epstein in First Things (November 2018)
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Jason Guriel (2017-12-13)
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John Updike in New York Times (June 25, 2006)
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Susan B. Neuman in scholastic (2016)
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Nicholas Lemann in The Atlantic (1997-11-01)
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