Sam Evans-Brown en Common Core Standards Could Knock As, Bs And Cs Off Report Cards Transcript <p>MELISSA BLOCK, HOST: <p>Most of today's students and their parents are used to report cards based on the letters A through F. But a new grading system is taking root in schools across the country. It's called standards-based grading. The point is to give parents more information, as New Hampshire Public Radio's Sam Evans-Brown reports.<p>SAM EVANS-BROWN, BYLINE: Here's what we know about grades in America: A is good, F is bad. Mon, 09 Dec 2013 21:34:00 +0000 Sam Evans-Brown 14627 at