Hey i have looked at some questions on here like this and they all said that in 5th grade they start talking about puberty and in 6th they start talking about sex. I am in 7th grade and 13 years old and they havnt even talked about puberty! (i havnt talked to my parents about it either!) i go to a public school. they havnt said anything about puberty or sex! when did u learn about it at school? how did you learn, talking, movie......? Please reply!! thanks.