The education sector can handle the switch to the new senior secondary curriculum and the change of the medium of instruction at the same time, the education chief has said. The Professional Teachers' Union has called for the language policy change to be deferred from 2010 to 2013. But, speaking after appearing on a radio programme, Secretary for Education Michael Suen Ming-yeung said: 'We are all aware that the new senior-secondary-school curriculum is important. We have already spent a lot of time preparing it. I think we should be able to handle the 'fine-tuning' and the new senior-secondary-school curriculum at the same time.' The Education Bureau unveiled the 'fine-tuning' policy last Thursday, suggesting relaxation of the limits on teaching in English in junior secondary classes. It proposed that classes in which at least 85 per cent of Form One pupils were in the top 40 per cent of their age group academically be allowed to be taught in any language the school preferred. Classes in which fewer than 85 per cent of Form One pupils met that criterion would be allowed to use English for up to a quarter of teaching time in subjects other than languages, the government suggested. Mr Suen said the government would try to sort out all the problems raised by relevant parties before rolling out the new policy. 'We will certainly speak with stakeholders,' he said on the show. 'Their worries must be addressed, otherwise the policy cannot be carried out.' A report citing a government source has said that only 30 secondary schools would be free to teach in English in all Form One classes in 2010 because only that number could enrol enough top students. Mr Suen said details of the new policy would be unveiled in April or May.