Whose vs who’s definition

Critics call Han's video lessons primitive Whose vs who's definition and their usefulness questionable. To which Khan replies that solving global problems of education was not part of his plans. But," he believes, "Khan Academy courses are at the beginning of the first stage of development. About $10 million will be invested in improving training videos every year. Additional exercises and...
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Second grade games

Students are already often offered free online materials. What can an online learning system worth trillions of dollars become Second grade games. If you were asked to name the most important innovation in the transport industry in the last 200 years, you might remember Henry Ford's invention of the internal combustion engine, the birth of aeronautics, the conveyor and the "T" model, even the...
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