Schools should not be afraid to promote British values because some children are being brought up in environments "actively hostile" to them, the head of Ofsted has said.
Amanda Spielman said the education system has a vital role in upholding the principles that "make us a beacon of liberalism, tolerance and fairness to the rest of the world".
In a speech to the Birmingham Education Partnership conference, she argued British values should be at "the very heart of the curriculum".
"We know that even in the UK some children are being brought up in an environment that is actively hostile to some of these values," she said. "So the education system has a vital role in inculcating and upholding them.