The Common Core State Standards Initiative is the largest-ever attempt in the United States to set unified expectations for what students in kindergarten through 12th grade should know and be able to ...

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 ...

For example, one "viral" math problem piled on interpretations of four different Common Core second-grade math standards: number lines, place values, adding and subtracting up to 1,000, and the ...