They said it happened the summer before starting secondary school, which appears to be a mix of middle and high school in the US. Secondary education - Wikipedia, the free encyclopediaFor a change like this, the parents should have changed schools entirely and just let her have a fresh start. If not, then yes they should have discussed it with the school administration, so that it could be handled and the kid given appropriate protection and support of/when needed. This was poorly handled.
The problem was that kids that used to know him in primary school recognized her. The only way to get around this is to move to a different city.
But yes, the school should have been notified and the teachers should be aware of it.