A group of educational leaders from throughout the nation, including the head of Hall County Schools, flocked to Chicago this week to take a look at the future of how to test students’ learning. And that could mean a move away from bubbling in answers.Hall Superintendent Will Schofield spent Tuesday and Wednesday in the Windy City with school representatives from 13 states. Those leaders joined with the Partnership for Assessment of Readiness for College and Careers to tweak future assessments now that Georgia is using new curriculum standards called Common Core.With the new standards, school officials said, come new assessments, which will replace those like the Criterion-Referenced Competency Test, which the system has used for years.