Some 31 head teachers have been recognise in the New Year honours.
Among them is Joan McVittie, who transformed two schools in deprived areas of London and Sally Coates, who oversaw improvements at Burlington Danes Academy in west London.
Both become Dames.
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A lamp in the tower which houses Big Ben is to be switched off for the first time in more than 70 years.
Sir Bruce entertained audiences for more than seven decades.
Work in the tower will also pause over the bank holiday weekend.