Moore was introduced to basketball at the age of 10 by her older brother. By the time Moore reached Colony High School in Palmer, Alaska, she was a good all-around athlete. She was on the basketball, track and volleyball teams. The basketball team reached the state finals four times winning the State Championship twice, and the volleyball team also won two State Championships. Jessica was voted Alaska's Athlete Of The Year her junior and senior high school years. Her most memorable experience from high school was winning her first of two State Championships in 1998.
AAU Moore got recognition from an Athletic Amateur Union (
AAU) in Oregon. The coach spoke to Jessica's high school coach, inviting her to play for his team during the second half of the summer. This team traveled all around the country, offering her great exposure. During her sophomore, junior and senior summers, she spent half of it with her Alaska team, and half playing, and living in Oregon. ==College==