The Department for Education have insisted it is "right" that schools should be allowed to decide their own term dates.
A spokesman said: "It is heads and teachers who know their parents and pupils best, not local authorities.
"So it is right that all schools are free to set their own term dates in the interests of parents and pupils."
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In his first outing since the referendum result, the lead Leave campaigner has outlined his vision for a post-Brexit Britain.
Becoming fresher, unsettled with rain at times as the week goes on.
Parts of the major A1 road have been shut after a sinkhole appeared overnight on Saturday.