Special education correspondent John Merrow in a two-part report on the new Common Core standards.

Part 1 - In Defining What Public School Students Should Know, Teachers Wonder 'How?'

In the past, public school standards varied state to state. With backing from the federal government, some governors and superintendents collaborated on a national "Common Core." But they define only the "what" -- what kids should know, not how they should be taught. Read the full NewsHour report.

Part 2 - Can a Computerized Test Measure Complex 'Common Core' Skills?

The new "Common Core" sets the standard for learning in America, but how do states test for these new, more complex and career-ready skills? Special correspondent for education John Merrow examines the challenge facing schools and teachers in measuring things like critical thinking and collaboration. Read the full NewsHour report.