FIVE more days of strike action are planned at Aldercar Community Language College.
NASUWT members have already taken eight days of strike action over the compulsory redundancy of a teacher and will now strike on November 17, 18, 21, 22 and 25.
The union claims governors have refused to meet.
NASUWT executive member Dave Wilkinson said: “This dispute has the potential to become one of the longest periods of strike action in any school in England for decades.
“And yet, I received another letter from the Chair of Governors this morning refusing to meet to try to resolve the NASUWT dispute.
“Instead the Management put their efforts into organising babysitting of pupils as a substitute for genuine lessons. This is the educational equivalent of Emperor Nero fiddling while Rome burns.”
The school has remained open during the dispute.
Headteacher Tony Cooper said: “At no time have the governors, school or local authority refused to meet with him. To threaten further strike action simply because someone has not met him is disappointing. The key word here is ‘our’ as these are our pupils towards whom we have the greatest responsibility, perhaps unlike others who are at least one step removed from them.”