Complex sentence: Donald Sloan attended Seagoville High School in the Dallas, Texas area-over three season, Sloan's team was 93-10, and Sloan led Seagoville to the regional championship game as a senior.
Split into simpler sentences: Donald Sloan attended Seagoville High School in the Dallas, Texas area. Over three seasons Sloan's team was 93-10 and Sloan led Seagoville to the regional championship game as a senior.