Students from the age of 12 will be taught about common sexually transmitted diseases in a special television programme to be shown in secondary schools. Other programmes to be shown during the school year will teach students how to deal with various situations, ranging from being caught in a fire to having to use lifts without their parents. The special programmes will be backed up by regular educational television programmes on school subjects. The Education Department's principal inspector, Sheridan Lee Sha-lun, said yesterday two episodes on sex education would be produced, one dealing with sexually transmitted diseases and the other with adolescent development. 'We understand sex may be taboo for some people,' Mr Lee said. 'We will present the topic with special care. 'Cartoons and models may be used when introducing the diseases. We will try to arrange medical experts to explain.' Mr Lee said the department and RTHK were trying to produce the programmes in an innovative way to attract students. Two interactive CD-ROMs on Putonghua and Information Technology were launched yesterday, and schools should receive copies next month. Dr Catherine Chan Ka-ki, who replaced Julian Leung Yat-ming as assistant director of education this month, said the department was reviewing the school curriculum for the next century. Dr Chan said she was drafting a paper on the review which would be discussed at a Curriculum Development Council meeting next month. 'The development of information technology, the school-based assessment and the whole education system . . . all these should be reviewed before we enter the 21st century,' she said..