Tricia Black feels the job is becoming too stressful for many.
A former teacher from Dronfield who recently left the profession has slammed funding cuts from the government.
This week we've been looking at whether youngsters in Derbyshire are getting a proper education- as thousands of pupils return to school from the summer holidays.
Tricia Black told Peak FM many teachers are having to give up their own time- and sometimes even their own money- to support children;
"Schools are becoming more reliant on teachers' good will to pay out of their own pockets and work extra hours.
"It's not fair, they're not paid to do extra work."
The government recently announced a 14 billion pound boost for schools, along with a pay-rise for teachers.
Meanwhile, the funding increase needs to come sooner, according to a Derbyshire County Councillor.
Alex Dale is the Cabinet Member for children and young people in our area;
"It's a steady increase over a number of years, and I think most schools will say that they need the money now.
"We'll certainly be continuing to work with the Government and lobbying them to try and bring forward some of this extra cash, to ensure schools in Derbyshire can get the benefit as soon as possible."