According to Johns Hopkins:

Baltimore's teen pregnancy rate today is three times the national average. The most effective teen pregnancy prevention programs include abstinence awareness and sex education, life-skills or negotiation training, access to contraception and case management. The Self Center program, previously active in Baltimore, included all of these components and teen pregnancy rates did decline. Baltimore's current array of school-based teen pregnancy prevention programs target adolescents of all ages and include some of the components that have proved most effective. However, most programs do not offer direct access to contraception, and Baltimore's teen pregnancy rate remains above the national average. Evidence suggests that the most promising strategy combines and aggressive teen pregnancy prevention strategy with increasing the opportunity structure for at-risk youth.

There's no better case study on what happens when local leadership rely on feelings rather than fact to guide students on important matters such as sex education. Interesting how the religious right never sticks around long enough to take credit for the results of their disasterous policies.