ESKO — A little less than a week before the two FIRST Robotics regional competitions begin at the Duluth Entertainment Convention Center, teams of robotics students gathered at Esko High School to practice. Eight years ago, Northland teams never had the chance to practice; they instead had to face the new robotics game for the first time on the competition floor. "We always say, if you're on the high school basketball team and you could only eve…