In this photo taken Sept. 10, 2010, sex education teacher Shayna Knowles, center, talks to students during class at St. Andrew's Episcopal Church in Lake Worth, Florida.
In this photo taken Sept. 10, 2010, sex education teacher Shayna Knowles, center, talks to students during class at St. Andrew's Episcopal Church in Lake Worth, Florida. Alan Diaz AP File
In this photo taken Sept. 10, 2010, sex education teacher Shayna Knowles, center, talks to students during class at St. Andrew's Episcopal Church in Lake Worth, Florida. Alan Diaz AP File

Sex education, contraception are keys to preventing teen pregnancy

May 17, 2016 08:56 AM