Complex sentence: At the age of nine, he joined a school-sponsored robotics program that used the Lego Mindstorms platform, and for the following four years, Jordan participated in state and national robotics competitions including FIRST, FLL, and Robofest.
Split into simpler sentences: At the age of nine, he joined a school-sponsored robotics program using the Lego Mindstorms platform. For the following four years, Jordan participated in state and national robotics competitions, including FIRST, FLL, and Robofest.