Only 8% of parents support the education secretary's reforms and think they are good for their children, the general secretary of the National Teacher's Union (NUT) said.
Christine Blower made it clear no one - teachers and parents - wanted to resort to a strike, but industrial action was necessary if a pay system which was "fair" to teachers "everywhere" was implemented.
More top news
Olympic freestyle skier Gus Kenworthy said the dog meat farm in South Korea was 'one of the saddest places I've seen'.
Two-year-old Casper Platt-May and his six-year-old brother Corey died in the crash in Coventry on Thursday.
It means the petition, calling for a diverse panel to be appointed to the inquiry, has enough signatures to spark a debate in Parliament.