KASSON — Alexa Van Straaten has three section championship medals and a state championship medal hanging in her room. She also has one state runner-up medal and one state third-place medal. The number of those medals the Dodge County senior defenderdoesn’t appreciate: zero. “It was super amazing and I’m so grateful,” she said of finishing her high school hockey career by playing in a third consecutive state tournament. “Every year, your goal is …