Government statistics published today show that 221 injuries had been reported by teachers as a result of violent attacks on school staff during 2005-06.
If spread out across the school year this equates to at least one incident for every school day.
The Liberal Democrat education spokeswoman, Sarah Teather, said pupils and their parents must be prosecuted for assaulting teachers.
“These chilling figures reveal the shocking levels of violence in schools,” she said.
“Every few years a particularly tragic case makes the news, but the hidden story is that a teacher in England falls victim to a serious assault every single working day.
Figures show 21% rise in teacher attacks