I am working at a hk tutorial center and teach teenagers dse math exam skills 80% students got top 3 in their class after attending my lessons I hope to provide a happy learning environment to my students and also let them know more about the ex skills to gain excellent results in dse I am working at a hk tutorial center and teach teenagers dse math exam skills 80% students got top 3 in their class after attending my lessons I hope to provide a happy learning environment to my students and also let them know more about the ex skills to gain excellent results in dse I am working at a hk tutorial center and teach teenagers dse math exam skills 80% students got top 3 in their class after attending my lessons I hope to provide a happy learning environment to my students and also let them know more about the ex skills to gain excellent results in dse