The National Union of Teachers (NUT) and the National Association of Schoolmasters Union of Women Teachers (NASUWT), the biggest teaching unions, are gathering for their annual meetings where they are expected to speak out about pay and Ofsted inspections.
Education Secretary Michael Gove could face another vote of no confidence following a similar move by the the Association of Teachers.
But, according to the Telegraph, Gove is refusing to bow to pressure over the demands of unions, saying “the direction of travel is now fixed” over teachers’ pension and pay arrangements.
The NUT and the Nasuwt have already announced joint strike plans.
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Guillier conceded a "severe defeat" defeat to his supporters as the result came in.
The outage struck Hartfield-Jackson Atlanta International Airport at around 1pm local time, stopping all outgoing flights.
It will be a chilly day for many parts with the highest temperatures, about 10 Celsius (50F) in the far northwest.