Teachers at Belper School are due to join a public sector workers’ strike tomorrow, Thursday, July 10.
The school will be closed to all pupils for the day as members of the National Union of Teachers (NUT) take industrial action.
Meanwhile, Ecclesbourne School in Duffield will also be partially closed as staff join more than a million public sector workers expected to take part in a walk-out.
Council staff, firefighters and civil servants will also be staging their own strikes.
Belper School headteacher Martyn Cooper said in a letter to parents: “This will have a serious effect on the school in that we will be unable to open safely for students that day.
“The school will therefore be closed to all students on July 10 2014.
“Some members of staff who are not taking part in the action will be arranging focus sessions with some students who are being asked to come into school.”
More than 1,500 civil servants from the Public and CommercialServices union (PCS) wil also strike in Derbyshire.
That means Government departments like tax and revenue offices will also be closed along with job centres, benefit offices, courts and driving test centres.
Firefighters were last on strike on Saturday, June 21, in a long-running dispute.
Assistant Chief Fire Officer Gavin Tomlinson, spokesperson for Derbyshire Fire and Rescue Service, said: “We will still be responding to 999 calls albeit at a reduced level.
“Once again we are asking members of the public to take extra steps to reduce the risk of a fire breaking out in their home and to take extra care when driving on the roads during times of industrial action.
“Fire can start for a variety of reasons, from cooking being left unattended, to electrical faults. It is therefore essential that everyone ensures that they have a working smoke alarm fitted on every level of their home, to provide vital early warning of a fire and to give occupants crucial time to escape.
“I would urge everyone to visit our website, www.derbys-fire.gov.uk where there is a wealth of fire safety advice and information available.”
The unions will hold a demonstration in Derby Market Place starting at 11am and unions are calling for members of the public to join them, saying that low pay and pay freezes impact not just them but the locally economy as well.