At least a fifth of government-funded schools should go private to offer parents more choice, the Chief Executive's top adviser on education, Antony Leung Kam-chung, said yesterday. Mr Leung, chairman of the Education Commission, a high-powered advisory body, said: 'A certain proportion of schools should run in a different style to government-funded schools so as to generate diversity. At least one-fourth or one-fifth should go in that direction.' His suggestion came after the failure of an attempt this month to persuade government-aided schools to switch to a scheme which would allow them to charge a tuition fee on top of subsidies according to the number of students enrolled. They would also be free to select students and have flexibility in many areas, including curriculum and medium of instruction. Revenue generated from fees would have to be used to improve the schools, which would operate as non-profit-making organisations. The schools, called direct-subsidy schools, would be treated as private by the Government. But aided-school sponsoring bodies feared they would be unable to recruit enough students to sustain their operation. In another attempt to allow more variety, two schools have been granted sites at a nominal rate in Diamond Hill and Sha Tin to operate privately. The two will be given start-up capital but no further subsidies, so fees will be charged.