Teachers are putting children's education at risk and disrupting parents by taking "unnecessary" strike action, Nicky Morgan has told Good Morning Britain.
The education secretary denied claims the government was cutting funding, saying the schools budget was the highest it has even been.
She said less than a quarter of members of the National Union of Teachers (NUT) had voted for strike action, which she claimed represented less than 10% of the total teaching profession.
Morgan also said the government would re-engage in talks with the NUT to "air all the issues".
"This strike is unnecessary, it is putting children's education at risk and inconveniencing parents."
Hundreds of teachers have marched through Bristol City Centre in protest at what they say is the underfunding of our education system.
Teachers across England are staging a 24-hour strike in a long-running dispute with the Government over the "underfunding" of schools.