PARMA, Ohio — Teachers at a Parma charter school are now on strike.

A group of teachers with Summit Academy Parma began walking the picket line outside the school on Stumph Road at 7:30 a.m. Tuesday.

“The teachers are seeking to win a contract that ensures smaller class sizes, improved staffing and stronger health and safety conditions for their students,” organizers say.

Teachers say they will stay on strike until a deal is made.