A correction to an earlier version of this article has been appended to the end of the article. When Veera Sinha was a little girl in India, her father asked his kids to solve math puzzles in their ...

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Sean Nank is a math expert who is helping teachers to implement the Common Core standards. He’s a professor at the American College of Education, created in 2005 to provide online graduate programs ...

EdSource · School screen time is rising. California parents are asking where to draw the line Fifth-grade math teacher Wei Zhang moves her hands in small circles with her palms up, coaxing her ...