The city's biggest teachers' union has called on the government to scrap its plan to introduce mandatory morality and national education classes. A survey of more than 2,000 union members of the pro-democracy Hong Kong Professional Teachers' Union - which claims a membership of 80,000, or 90 per cent, of all the city's teaching professionals - revealed that 70 per cent were against the move. Union officials also criticised the government for carrying out consultation over the move in a 'condescending' way and called for a new round of talks. Fung Wai-wah, the union's president, said teachers opposed the government's proposal as it 'emphasised building national identity' without teaching students critical thinking. 'The union and teachers actually support moral and national education - when it is done the right way. However, we think that education is being used as a political tool in this case,' said Fung.