摘要:AbstractThe teenager's knowledge about contraceptive methods promotes their sexual and reproductive health, since the precocity of sexual relations is a reality. We purpose a study to test the effectiveness of a training intervention among adolescents. Is a quantitative, experimental field with a sample of 90 adolescents (48-control group and 42 experimental). The questionnaire included sample characterization and scale CPF (Nelas, Silva, Ferreira, Duarte & Chaves, 2010). The found results reveal the importance of training intervention on the acquisition of knowledge about family planning when compared with the experimental control group (t=- 6,564, p = 0.000).