In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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Before making Finding Nemo, the animation gurus at Pixar Studios had to take a graduate class in fish biology and oceanography.
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Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13
Eminem repeated the 9th grade three times.
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In 2014, a college in upstate New York started offering classes on the sociology of Miley Cyrus.
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