Commenting on the passing of motion 18 at Annual Conference in Harrogate, Daniel Kebede, general secretary of the National Education Union, said:
"There is an increase in behaviour that challenges, and education staff are bearing the brunt of it. Austerity measures since 2010 have led to this situation. There has been a lack of investment in special needs, a rise in child poverty levels and an increasingly narrow curriculum that does not engage swathes of young people. It is no wonder the situation is getting worse.
"What is urgently needed is investment in schools, staffing and specialist provision so that all SEND needs can be met and supported quickly, and increased pastoral and behaviour teams can support the young people who need it."