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".
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The PM promises to double to 200,000 the number of homes built under an existing scheme aimed at easing Britain's housing shortage.
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The plan, which would effectively strip banks of the benefit of recent corporation tax cuts, forms part of the party's election manifesto.