"Turning off all the heating in December is just mental"

But headteacher Mr Benzie, 52, defended the day, saying it was ‘a success.’

‘We turned off the heating as an experiment to see if we can lower our carbon footprint,’ he said.

‘We allowed pupils to wear as many jumpers as they liked and everyone seemed to be happy enough although it did get pretty chilly.

‘We gave letters to pupils to take home to their parents informing them about the eco day.