Teenagers (4) Development (2) Context (2) Witnesses (2) Weights and measures (2) Valuation (2) Teachers (2) Speeches, addresses, etc (2) Sex instruction (2) Sex (2) Self-esteem (2) Premarital sex (2) Methodology (2) Masculinity (2) Life (2) Lectures and lecturing (2) Girls (2) Femininity (2) Evaluation (2) Elementary schools (2) Adolescence (2) Translating (2) Gender (2) Valoración (2) Evaluación (2) Escuelas primarias (2) Testigos (2) Vida (2) Estudio (2) Autoestima (2)