Preteens should learn about sexually transmitted diseases (STDs),birth control,the consequences of teen pregnancy and all the facts about menstruation,wet dreams,and other signs of maturation.

• 10岁前的儿童应该知道性传播疾病、生育控制、少女怀孕的后果和关于月经、性梦，以及其他性成熟特征的事实。