Greg Wallace, the head of the Best Start Federation which has turned around five failing schools, has said he welcomes the idea of top teachers being parachuted into struggling schools.
Asked whether "hot shot" teachers from city schools could understand the problems of a rural school, he said: "Why not? ... Children are children and they're more similar than they are different."
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Temperatures will remain close to freezing.
The prime minister's announcement came as international leaders gather in Paris on the second anniversary of the climate change plan.
Prime Minister Theresa May said in October the Government will shift towards an organ donation system in England which presumes consent.