Delaware Gov. Jack Markell, left, helps third-grader Raegan Megahan with a math lesson at Silver Lake Elementary School in Middletown, Del., Tuesday, Oct. 1, 2013. Silver Lake has begun implementing ... more 
Delaware Gov. Jack Markell, left, helps third-grader Raegan Megahan with a math lesson at Silver Lake Elementary School in Middletown, Del., Tuesday, Oct. 1, 2013. Silver Lake has begun implementing the national Common Core State Standards for academics. (AP Photo/Steve Ruark) less 
1 / 6
Associated Press | Photo By Steve Ruark
Mon, Dec 2, 2013 10:20 AM EST