FILE - In this July 21, 2014 file photo, students at a summer reading academy at Buchanan elementary school work in the computer lab at the school in Oklahoma City. Wading into one of the most polarizing issues in education, President Barack Obama called Saturday for capping standardized testing at 2 percent of classroom time, while conceding the government shares responsibility for having turned tests into the be-all-and-end-all of American schools. (AP Photo/Sue Ogrocki,File)