Students in grades 3 through 6 are taking the Smarter Balanced Assessment, a standardized test for elementary students, starting April 20, 2015. The online testing will continue for five weeks. (U.S. Marine Corps photo by Cpl. Khalil Ross/Released) - Students in grades 3 through 6 are taking the Smarter Balanced Assessment, a standardized test for elementary students, starting April 20, 2015. The online testing will continue for five weeks. (U.S. Marine Corps photo by Cpl. Khalil Ross/Released)