(CBS News) Sal Khan is a math, science, and history teacher to millions of students, yet none have ever seen his face. Khan is the voice and brains behind Khan Academy, a free online tutoring site ...

San Jose, California: Jesse Roe, a ninth-grade math teacher at a charter school here called Summit, has a peephole into the brains of each of his 38 students. He can see that a girl sitting against ...

TUCSON, Ariz.--(BUSINESS WIRE)--Illustrative Mathematics (IM) today announced it has partnered with Khan Academy to provide free practice exercises tightly aligned to its highly-regarded curriculum, ...

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The following script is from "Teacher to the World" which aired on March 11, 2012, and was rebroadcast on Sept. 1, 2013. Sanjay Gupta is the correspondent. Denise Schrier Cetta, producer. Take a ...