The National Education and Skills Agency has agreed to train teachers and pupil members of the Scottish Concho Schools to teach sex education to young people at primary level.
The schools will receive specialist training, including on the history of sex education and sex education in the public school curriculum, before they begin work at the end of the year.
The schools are to be funded from the Schools and Colleges Fund.
The agency is also working with parents to identify best practice for sex education.
It is the latest in a series of initiatives to help build the education sector in Scotland.
In May, the Scottish Government introduced the first of a series, including a National Standards Framework for sex ed, which aims to build a national sex education system that works for all students.
The Scottish Conch Schools are the first school in the country to receive this new funding.
Scottish Labour leader Kezia Dugdale has called for a sex education funding formula to be set in the new year.
She said the Conch School funding was just the beginning.
“There are more steps that need to be taken to ensure that young people, particularly girls, are given the information that is right for them, and that it doesn’t make them uncomfortable,” she said.
“But we also need to do more to make sure that we have a national curriculum that is inclusive of all people, including young people.”
“As the UK has moved from a place where young people in schools were not allowed to use contraception, to where they can now use condoms, to a place that wants to make contraception available to them, the UK Government needs to take a very serious look at what it is teaching young people about sex.”