Anti-LGBT+ education protests are set to take place across the UK from September as “concerned parents” intensify their attempts to stop schools teaching students about homosexuality.

Andrew Moffat, an assistant headteacher at Parkfield Community School and creator of the ‘No Outsiders’ programme of lessons that has sparked protests outside Birmingham schools, has received a death threat as conflict with parents continues to escalate.

Following daily protests outside the school – which Moffat has said left some children in tears – Parkfield staff decided to suspend the programme until an agreement could be reached with concerned parents.

The No Outsiders programme, developed by Moffat in 2014 for use in Parkfield and other schools, aims to teach children about the characteristics protected by the Equality Act – such as sexual orientation, race and religion – through engagement with books about characters who belong to minorities. The books used to introduce LGBT+ equality include And Tango Makes Three, a story about two male penguins raising a chick, and Julian is a Mermaid, which follows a boy who likes to dress up in a mermaid costume.

Teachers no fear that anti-LGBT+ education protests will spread across the country as a coalition of demonstrators seeks to challenge the policies at hundreds of schools across the country.

A letter from 80 MPs was published by The Sunday Times last weekend calling on the government to make the requirements clearer, alongside the National Association of Head Teachers and National Education Union.

The MPs wrote: “The protests outside schools need to end, and the best way to achieve that is for the government to be absolutely clear on what will be taught.

“At the moment it is far from clear for many parents. The government and the Department for Education have been slow to respond to the misinformation being promulgated among many of our communities by those seeking to undermine relationships education in primary schools.

“If unchecked, the problem will grow, damaging our schools and communities and weakening the recent advancement of equal rights in our country.

“We call on the education secretary to act during the schools’ summer break by mounting a nationwide information exercise for parents, underpinning the introduction of the new relationships education in primary schools — which is crucial for preparing children for life in modern Britain.”