Prime Minister David Cameron said the Government took the decision to change the national curriculum now because "we are in a global race".
Mr Cameron told This Morning: "We need to make sure the standards we set are as tough as those on the other side of the world.
"If we want to turn out young people who take on the world and win we've got to be rigorous at school".
More top news
A damp start to the working week with brighter weather for most later in the day
Having a longer pregnancy also reduced the risk of suffering from post-natal depression, a study found.
A gunman has taken two members of staff hostage at the MFA Bowl complex in Nuneaton, its chief executive Mehdi Amshar said.