The Tulsa Public Schools board voted 6-1 to approve sex education classes.
The district will start a pilot program that aims to combat teen pregnancy.
The program is called "Making Proud Choices: A Safer Sex Approach to HIV/STDs and Teen Pregnancy Prevention."
It gives the standard advice about contraception and disease prevention but stresses abstinence as the best method to avoid pregnancy and diseases.
The class would be offered initially on the Memorial, Webster and Clinton campuses.
If successful, it would be rolled out district-wide in 2014.
Students would require parental approval before taking the course.