03/30/2011 01:44 pm ET Updated May 30, 2011

Science Education: 4 Reasons Americans Students Are Falling Behind

The few times that Huan Kiat Koh came home with poor grades when he was growing up in Singapore, he vividly remembers his mother's response.

"She would scold me, and then tell me to sit down and work," said Mr. Koh, a sophomore majoring in materials science at Carnegie Mellon University. "In general in Singapore, parents feel grades are very important for their kids.

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