There is a Parliamentary petition running which has been openly described by supporters of it to be an attempt to prevent the Transgender Trend Schoolkit being allowed in school.
My understanding is that a previously similarly intentioned petition was not allowed but that 'with advice' on wording, this one has been accepted:
petition.parliament.uk/petitions/226793
Ban Anti-LGBTQ+ material from schools.
There has been a recent influx of anti-LGBT+ material being sent to schools in England. We are asking that any and all material, that is first and foremost designed to give a negative view of the LGBT+ community, be removed from schools.
More details
Examples of how such material can be shown to be anti-LGBT+:
• they recommend conversion therapy.
• they scaremonger about conditions that are not legally recognised as clinical or medical conditions.
• they encourage school staff to break equality laws as stated in the EA2010.
• they give false information regarding the legally available treatment for transgender youth in the UK."
recent relevent threads:
www.mumsnet.com/Talk/womens_rights/3339139-chartered-college-teaching-signed-petition-against-anti-lgbtq-materials-in-schools
www.mumsnet.com/Talk/womens_rights/3329447-People-Who-Oppose-Trans-Rights-Have-No-Place-In-Labour-Says-The-First-LGBT-Mayoral-Adviser?pg=6