Misinformation over LGBT teaching in schools is "vast and in danger of spreading," a Commons debate has heard.
It follows an investigation by the BBC's Panorama programme into demonstrations outside Parkfield School and others in Birmingham over the teaching of same-sex relationships.
It's feared demonstrations could spread across the country - with some calling for Government help for schools to overcome parental opposition.
The Education Minister, Nick Gibb, told the Commons the government is trying to achieve a consensus with parents - but the schools need to take charge.
"Ultimately it is a matter for the school itself to decide on the curriculum - and when the school has decided on what it wants to teach and when it will have the full support and back of the Department for Education."
But Labour's Shadow Education Secretary, Angela Rayner, said the issue was "not about consultation".
"It's about LGBT and the misinformation that's being given out and the bigotry that's being displayed by some minorities on our streets," she told the debate.