Salman "Sal" Khan, founder and executive director of Khan Academy, is venturing into brick-and-mortar private schools.
Stephen Lam/Reuters/Landov
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Stephanie Johnson teaches special education classes at Oak Canyon Junior High School in Lindon, Utah. She says the paperwork is a constant frustration.
Alex Hale for NPR
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College senior Becca Arbacher has a double major at Columbia in New York City — one of the most expensive colleges in America.
Elissa Nadworny/NPR
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