pbr Headteachers threw down the gauntlet to a new Government, announcing they will refuse to administer national curriculum tests.br ppbr The Key Stage 2 SATs are due next month, but teachers unions have confirmed they are planning to, "frustrate the administration of the tests."br ppbr The National Association of Head Teachers and the National Union of Teachers voted overwhelmingly for the action.br ppbr The tests in English and maths are due to be taken by 600,000 children on what is expected to be the first day for a new government. Teachers will remain in the classroom, but will not administer the exams.br ppbr Labour and the Conservatives insist the SATs should stay. The unions argue the tests are bad for children and schools. Causing too much stress and undermining the work of Heads.br ppbr Action is expected to start on 4th May, just two days before the country goes to the polls.