CHAPTER 2
THE THREE Gs METHOD
If you find a book you really want to read but it hasn’t been written yet, then you must write it.
TONI MORRISON
Sal Khan was a successful hedge fund analyst working in Boston when he learned that his tween cousin Nadia was struggling with unit conversion in math—a difficulty that was preventing her from being placed on a more advanced math track at school. “She lived in New Orleans, so I offered to do distance tutoring with her every day,” said Khan, who has degrees from MIT and Harvard. The tutoring worked. He explained,
Word soon spread in my family that free tutoring was available, and by 2006 I was working with ...
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