Nene Education Trust says more needs to be done across the board to tackle violence against women and girls
It's following calls for more action to be taken to help protect pupils from violence.
A teaching trust in Northamptonshire says more needs to be done across the board to tackle violence against women and girls.
It's as a charity says that secondary schools and colleges should appoint dedicated 'violence against women and girls' leads, and deliver prevention lessons.
The Youth Endowment Fund (YEF) is calling for more action to be taken to help protect pupils from violence.
A poll of 4,717 secondary school teachers in England, carried out by Teacher Tapp in December, suggests one in eight (13%) reported that a pupil in their school committed sexual assault against another child in the past term.
A report by the charity suggests the Government should pilot and scale up a VAWG lead training grant to improve Relationships, Sex, and Health Education (RSHE) lessons, bring in specialist external providers and train teachers.
At least five "relationship violence prevention lessons" should be delivered to Year 9 pupils (aged between 13 and 14) as well as college students, it added.
But Samantha Paris, lead for safeguarding at Nene Education Trust says it's not just up to teachers to address the issue: " It isn't just school's responsibility, when children are in school they're on line for education but - their social side of things happens mostly outside of school."
"We've really got to support parents, give them the guidance and support on how to keep their children safe."
"I don't think we can expect teachers to do everything. It's a joined up approach that's needed."
"Positive relationships and looking at consent and respect in relationships is already covered."
Another poll by Teacher Tapp for the charity, of 1,712 secondary school teachers in England in January, suggests that 45% lack confidence in teaching pupils how to intervene if they witness a sexual assault, while 27% said they did not feel confident teaching students how to leave unhealthy relationships.
Samantha added: " Within the relationships, sex and education curriculum there is lots of information that is shared from all different stages through education around relationships.
"I think one of the biggest things that schools and agencies are fighting against is the online world that are children are seeing and hearing on a daily basis. In terms of the content and information that is shared on there, it's so difficult to relate that into those lessons and the curriculum that is quite prescribed."
A Government spokesperson said: "All sexual abuse is abhorrent, and this Government is determined to root it out as part of our mission to halve violence against women and girls through our Plan for Change."
"We have robust statutory safeguarding guidance in place that schools must follow to keep children safe from abuse and harassment, and our behaviour guidance is clear sexually abusive language or behaviour are never acceptable."
"Through our review of the relationships, sex and health curriculum we will ensure children are learning the skills they need to build positive, healthy relationships."