Teachers in Nottingham are on strike for the third time in less than a month over plans to introduce a five-term year.
The changes would mean an end to the six-week summer holiday as the council believes children fall out of the habit of learning during long breaks.
The National Union of Teachers says the changes will make teaching harder and are complaining that members have been threatened with the sack if they don't accept new contracts.
When teachers in the city went on strike on the 29th March and 17th April, as many as twenty city council schools closed, while over thirty opened with a reduced timetable.
The consultation is due to end on May 18th.