Children who are given a bit more freedom to surf the web at school are actually less likely to get into trouble online, a report has revealed.
Some schools don't let kids go onto any websites without a teacher's permission, called a 'lockdown' system.
But when schools let pupils use their own judgement more, the children understood the risks better and were careful about their online safety.
The research was done by Ofsted, which is in charge of schools.
The schools which let kids decide for themselves have what's called 'managed systems', which do block some sites, but there are many more where the pupils get to decide for themselves if they are safe.