Students at Buchanan elementary school work in the computer lab in Oklahoma City, July 21, 2014. President Obama called Saturday for capping standardized testing at 2 percent of classroom time. (Photo by Sue Ogrocki/AP)

Obama has a pop quiz for students, parents

President Barack Obama in Saturday called for limiting the amount of time students are taking standardized tests and unveiled new guidelines that his administration would use to help schools across to administer more meaningful exams. ...