Half of teachers in England have considered quitting the profession because of stress, according to a survey by Teachers' TV.

Two thirds of the 823 teachers polled felt stressed by teaching, half of them during lessons - the biggest cause being disrespectful pupils.

One in 10 told the researchers for they worked longer hours than EU rules permit - and 60% blamed the amount of paperwork required. Three-quarters said they felt inadequately supported by their head teacher or senior management.

Around 35% blamed stress on poor resources in the classroom, 44% said large class sizes were to blame, and half blamed stress in the classroom on pupils' use of electronic gadgets.

Andrew Bethell, chief executive of Teachers' TV, said: "Teaching is one of the most demanding professions and it is clear that our teachers are feeling the pressure.

"We need to ensure that there are systems in place to help those teachers who experience stress to access available resources and support networks."