Many schools across London have closed due to a national teachers strike taking place on Tuesday (July 5).
The NUT (National Union of Teachers) is staging a one-day walkout in a row over funding cuts which it claims are affecting staff conditions and pupils' education.
The union says the majority of schools are likely to close or have a reduced timetable in place due to the industrial action.
The union has said funding cuts and the drive to make schools academies has led to an erosion of its members' employment rights.
It also claims that a lack of spending has contributed to rising class sizes, a reduction in subject choices and fewer materials being available for pupils.
Education secretary Nicky Morgan has described the strike as "counterproductive" and said it would "damage" the profession's reputation in the eyes of the public.
She said the academy system had given schools more flexibility, while the schools budget had risen by £4bn since 2011-12, and she claimed teachers' pay was the real driving force behind the strike.
In Hounslow , Heston Community School and Lampton School are among the schools to announce they would close due to the strike, while Kingsley Academy has said it will only be open for year seven and year 12 students.