PENSACOLA, Fla. -- Ashley Elenea Burkett, a 32-year-old who taught reading and special-education students in Santa Rosa County, Fla., and was the assistant coach for the volleyball team, and April Burford Watson, a 33-year-old who taught math and was a junior varsity cheerleader adviser, each were sentenced to 15 months in state prison today in a sex-with-students case.