It is "not good enough" that almost half of schools in Northern Ireland teach little or nothing about sexual consent, an Education and Training Inspectorate (ETI) report has said.
It suggested the vast majority taught little or nothing about LGBT issues, sexual orientation or gender identity.
The report was based on responses from more than 14,500 primary and post-primary pupils and 500 schools.
It included visits by inspectors to 50 schools.
The ETI inspectors said there was a lack of lessons on topics such as consent, domestic abuse, gender, transgender issues, contraception, pregnancy and abortion and menstrual health and wellbeing.
One pupil told the inspectors that "sexuality education has never been discussed other than in religious studies" in their school.
Another said that relationships and sex education (RSE) in their school was "only for heterosexuals".
