A headteachers' union has warned it would be strongly against the idea of routine snap schools inspections.
Plans for no-notice Ofsted visits were put forward by Education Secretary Michael Gove in the Commons yesterday in the wake of investigations into allegations of a "Trojan Horse" plot by hard-line Muslims at a number of Birmingham schools.
42% of parents believe schools should teach children about the dangers of pornography as soon as they are old enough to use the internet, a survey suggests.
It reveals that the majority of parents do not want it to be left to them alone to educate their youngsters about the controversial issue, and a large proportion think that pupils as young as five or six should be given lessons on the subject.
The survey, which questioned around 1,000 parents, found that six in ten parents are worried or very worried about their sons and daughters seeing violent or sexual material on the web.
But the poll also reveals that the majority (80%) of parents feel confident in protecting their children online.
While just over half (51%) said that pupils should not be taught about the dangers of pornography until they are teenagers, 42% said that they should be educated as soon as they are old enough to access the internet, even if they are as young as five or six.
More than eight in ten (83%) said issues around pornography should form part of sex education lessons.
The National Association of Head Teachers said the union had decided to set up alternative school inspections carried out by head teachers due to serious concerns among members about the quality of Ofsted inspections.
General Secretary Russell Hobby warned that the current Ofsted system puts headteachers on the defensive and that the "level of fear is overwhelming".
The programme will be piloted in a number of areas from this autumn, if it is successful it is hoped that a future government will consider the scheme.
"Schools dance to Ofsted's tune but don't really learn from the experience - they are too busy defending themselves against it and then recovering," Mr Hobby said.
School inspections are to be carried out by headteachers amid mounting concerns about Ofsted, it was announced today.
A new programme has been launched by The National Association of Head Teachers (NAHT) to act as an alternative to the current Ofsted system.
The scheme, which has been dubbed "Instead", will see school leaders visiting other schools in their region to check how well they are performing.