We got this year's curriculum for DS's year 6 (age 10/11) class yesterday and its got "sex education" listed among the science topics they will do.
I want to tell DS about this myself, so that what he learns in school is never a suprise. He already knows a bit because we've gradually been letting him become aware since he was little. What he doesn't know yet is that making babies involves penetration. (Or put it another way, he knows they are caused by sex but he doesn't know exactly what sex is).
Does anyone know how much is taught in year 6?